STC Holder: Sierra Industries LTD

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No. of STCs: 106

STC Holder: Sierra Industries LTD Address: 122 Howard Langford Drive, Uvalde, TX 78801, United States		Contact us to have your company added here!
STC No.: SA09010SC	Status: Current	App Date: 02/24/1994	Rev Date: 07/14/2017
TC Nos.: A27CE,
Models: Textron Aviation Inc.: 501, 551
ACO: AIR-760: Central Certification Branch FTW
Installation of a pilot's control wheel mounted, alternate gear horn silence switch.

STC Holder: Sierra Industries LTD Address: 122 Howard Langford Drive, Uvalde, TX 78801, United States		Contact us to have your company added here!
STC No.: SA09010SC	Status: Historical	App Date: 02/24/1994	Rev Date: 07/14/2017
TC Nos.: A27CE,
Models: Textron Aviation Inc.: 501, 551
ACO: Ft. Worth ACO Branch, Tel: +1 (817) 222-5140
Installation of a pilot's control wheel mounted, alternate gear horn silence switch.

STC Holder: Sierra Industries LTD Address: 122 Howard Langford Drive, Uvalde, TX 78801, United States		Contact us to have your company added here!
STC No.: SA09229SC	Status: Current	App Date: 05/24/1996	Rev Date: 07/14/2017
TC Nos.: A22CE, A27CE,
Models: Textron Aviation Inc.: 500, 501, 550, 551, 560, S550
ACO: AIR-760: Central Certification Branch FTW
Removal of mechanical factory nose baggage door stop assemblies and installation of pneumatic gas cylinder baggage door openers.

STC Holder: Sierra Industries LTD Address: 122 Howard Langford Drive, Uvalde, TX 78801, United States		Contact us to have your company added here!
STC No.: SA09377SC	Status: Current	App Date: 01/12/1996	Rev Date: 07/31/2017
TC Nos.: A22CE,
Models: Textron Aviation Inc.: 500
ACO: AIR-760: Central Certification Branch FTW
Install P&W Model JT15D-4 engines.

STC Holder: Sierra Industries LTD Address: 122 Howard Langford Drive, Uvalde, TX 78801, United States		Contact us to have your company added here!
STC No.: SA09862AC	Status: Current	App Date: 10/20/2015	Rev Date: 07/14/2017
TC Nos.: A1WI, A27CE,
Models: Textron Aviation Inc.: 501, 525, 525A, 525B, 551
ACO: AIR-760: Central Certification Branch FTW
Removal of original equipment manufacturer ladder and installation of a new design cabin entrance step assembly

STC Holder: Sierra Industries LTD Address: 122 Howard Langford Drive, Uvalde, TX 78801, United States		Contact us to have your company added here!
STC No.: SA09862AC	Status: Historical	App Date: 10/20/2015	Rev Date: 09/27/2016
TC Nos.: A1WI, A27CE,
Models: Textron Aviation Inc.: 501, 525, 525A, 525B, 551
ACO: Ft. Worth ACO Branch, Tel: +1 (817) 222-5140
Removal of original equipment manufacturer ladder and installation of a new design cabin entrance step assembly

STC Holder: Sierra Industries LTD Address: 122 Howard Langford Drive, Uvalde, TX 78801, United States		Contact us to have your company added here!
STC No.: SA09862AC	Status: Historical	App Date: 10/20/2015	Rev Date: 09/01/2016
TC Nos.: A1WI, A27CE,
Models: Textron Aviation Inc.: 501, 525, 525A, 525B, 551
ACO: Ft. Worth ACO Branch, Tel: +1 (817) 222-5140
Removal of original equipment manufacturer ladder and installation of a new design cabin entrance step assembly

STC Holder: Sierra Industries LTD Address: 122 Howard Langford Drive, Uvalde, TX 78801, United States		Contact us to have your company added here!
STC No.: SA11050SC-D	Status: Current	App Date: 03/01/2011	Rev Date: 07/31/2017
TC Nos.: A27CE,
Models: Textron Aviation Inc.: 501
ACO: AIR-760: Central Certification Branch FTW
Installation of Optional Engine Indicating System (EIS)

STC Holder: Sierra Industries LTD Address: 122 Howard Langford Drive, Uvalde, TX 78801, United States		Contact us to have your company added here!
STC No.: SA1382WE	Status: Current	App Date: 02/04/1966	Rev Date: 07/31/2017
TC Nos.: 3A13,
Models: Textron Aviation Inc.: 182, 182A, 182B, 182C, 182D, 182E, 182F, 182G, 182H, 182J, 182K, 182L, 182M, 182N, 182P, 182Q, 182R, R182, T182, TR182
ACO: AIR-760: Central Certification Branch FTW
Installation of flap actuated aileron droop system.

STC Holder: Sierra Industries LTD Address: 122 Howard Langford Drive, Uvalde, TX 78801, United States		Contact us to have your company added here!
STC No.: SA1400NW	Status: Current	App Date: 07/08/1980	Rev Date: 07/31/2017
TC Nos.: 3A15,
Models: Textron Aviation Inc.: 36, A36
ACO: AIR-760: Central Certification Branch FTW
Removal of ailerons and install full span flaps, spoiler roll control system, and elevator downspring compensator.

STC Holder: Sierra Industries LTD Address: 122 Howard Langford Drive, Uvalde, TX 78801, United States		Contact us to have your company added here!
STC No.: SA1435WE	Status: Current	App Date: 05/12/1967	Rev Date: 07/31/2017
TC Nos.: 5A6,
Models: Textron Aviation Inc.: 180, 180A, 180B, 180C, 180D, 180E, 180F, 180G, 180H, 180J, 180K
ACO: AIR-760: Central Certification Branch FTW
Installation of drooped ailerons in flaps down mode, recontoured wing leading edge, except 180J and K, actuated elevator trip system and installation of SC-100 stall warning system. (180, A, B, C, D, E, F, G, H, J, K LANDPLANE; FLOATPLANE AND AMPHIBIAN)

STC Holder: Sierra Industries LTD Address: 122 Howard Langford Drive, Uvalde, TX 78801, United States		Contact us to have your company added here!
STC No.: SA1441WE	Status: Current	App Date: 05/12/1967	Rev Date: 07/31/2017
TC Nos.: 3A24,
Models: Textron Aviation Inc.: 185, 185A, 185B, 185C, 185D, 185E, A185E, A185F
ACO: AIR-760: Central Certification Branch FTW
Installation of drooped ailerons in flaps down mode, recontoured wing leading edge (except A185F) stall fence, flap actuated elevator trim system and installation of SC-100 stall warning system. (A185F LANDPLANE; FLOATPLANE; AMPHIBIAN; SKIPLANE)

STC Holder: Sierra Industries LTD Address: 122 Howard Langford Drive, Uvalde, TX 78801, United States		Contact us to have your company added here!
STC No.: SA1525WE	Status: Current	App Date: 05/12/1967	Rev Date: 07/31/2017
TC Nos.: 3A21,
Models: Textron Aviation Inc.: 210, 210-5 (205), 210-5A (205A), 210A, 210B, 210C, 210D, 210E, 210F, 210G, 210H, 210J, 210K, 210L, 210M, T210F, T210G, T210H, T210J, T210K, T210L, T210M
ACO: AIR-760: Central Certification Branch FTW
Installation of droop ailerons in flaps down mode, recontoured wing leading edge, and elevator trim spring (except on T210K, L, M, and210K, L, and M).

STC Holder: Sierra Industries LTD Address: 122 Howard Langford Drive, Uvalde, TX 78801, United States		Contact us to have your company added here!
STC No.: SA1538NM	Status: Current	App Date: 12/23/1982	Rev Date: 07/31/2017
TC Nos.: A22CE,
Models: Textron Aviation Inc.: 500
ACO: AIR-760: Central Certification Branch FTW
Data pertaining to this modification are considered inadequate for duplication in other aircraft. This approval is limited to the installation made in Cessna Model 500, Serial No. 0304 only. Installation of medical systems.

STC Holder: Sierra Industries LTD Address: 122 Howard Langford Drive, Uvalde, TX 78801, United States		Contact us to have your company added here!
STC No.: SA1562NM	Status: Current	App Date: 07/07/1983	Rev Date: 07/31/2017
TC Nos.: A22CE,
Models: Textron Aviation Inc.: 500, 550
ACO: AIR-760: Central Certification Branch FTW
Installation of cargo liner and retention system.

STC Holder: Sierra Industries LTD Address: 122 Howard Langford Drive, Uvalde, TX 78801, United States		Contact us to have your company added here!
STC No.: SA1569NM	Status: Current	App Date: 10/24/1983	Rev Date: 07/31/2017
TC Nos.: A27CE,
Models: Textron Aviation Inc.: 501
ACO: AIR-760: Central Certification Branch FTW
Installation of side-looking camera hatch.

STC Holder: Sierra Industries LTD Address: 122 Howard Langford Drive, Uvalde, TX 78801, United States		Contact us to have your company added here!
STC No.: SA1596NM	Status: Current	App Date: 10/11/1983	Rev Date: 07/31/2017
TC Nos.: A14SW, A16SW,
Models: Textron Aviation Inc.: MU-300, MU-300-10
ACO: AIR-760: Central Certification Branch FTW
Installation of extended range fuselage auxiliary fuel tank.

STC Holder: Sierra Industries LTD Address: 122 Howard Langford Drive, Uvalde, TX 78801, United States		Contact us to have your company added here!
STC No.: SA1597NM	Status: Current	App Date: 12/01/1983	Rev Date: 07/31/2017
TC Nos.: A14SW, A16SW,
Models: Textron Aviation Inc.: MU-300, MU-300-10
ACO: AIR-760: Central Certification Branch FTW
Installation of aft fuselage fuel tank fill system.

STC Holder: Sierra Industries LTD Address: 122 Howard Langford Drive, Uvalde, TX 78801, United States		Contact us to have your company added here!
STC No.: SA1598NM	Status: Current	App Date: 02/27/1984	Rev Date: 07/31/2017
TC Nos.: A14SW, A16SW,
Models: Textron Aviation Inc.: MU-300, MU-300-10
ACO: AIR-760: Central Certification Branch FTW
Installation of tailcone baggage compartment modification,including access door modification.

STC Holder: Sierra Industries LTD Address: 122 Howard Langford Drive, Uvalde, TX 78801, United States		Contact us to have your company added here!
STC No.: SA1627WE	Status: Current	App Date: 10/25/1967	Rev Date: 07/31/2017
TC Nos.: A23EU, A6CE,
Models: Textron Aviation Inc.: 337, 337A, 337B, 337C, 337D, 337E, 337F, 337G, 337H, FT337GP, M337B, P337H, T337B, T337C, T337D, T337E, T337F, T337G, T337H, T337H-SP
ACO: AIR-760: Central Certification Branch FTW
Installation of drooped ailerons in flaps down mode, recontoured wing leading edge, stall fences, aileron centering springs, conical cambered wing tips and flap actuated elevator trim spring.

STC Holder: Sierra Industries LTD Address: 122 Howard Langford Drive, Uvalde, TX 78801, United States		Contact us to have your company added here!
STC No.: SA1663NM	Status: Current	App Date: 09/30/1981	Rev Date: 07/31/2017
TC Nos.: A7CE,
Models: Textron Aviation Inc.: 421C
ACO: AIR-760: Central Certification Branch FTW
Addition of fowler wing flaps, elevator trim spring with cockpit tension select lever, fuselage strakes, and nacelle strakes.

STC Holder: Sierra Industries LTD Address: 122 Howard Langford Drive, Uvalde, TX 78801, United States		Contact us to have your company added here!
STC No.: SA1689WE	Status: Current	App Date: 05/12/1967	Rev Date: 07/31/2017
TC Nos.: 3A12,
Models: Textron Aviation Inc.: 172, 172A, 172B, 172C, 172D, 172E, 172F (USAF T-41A), 172G, 172H (USAF T-41A), 172I, 172K, 172L, 172M, 172N, 172P
ACO: AIR-760: Central Certification Branch FTW
Installation of drooped ailerons in flaps down mode, contoured wing leading edge and wing stall fences. (172A, B, C, D, E, F, G, H, K, L, M, N, P LANDPLANES AND FLOAT-PLANES) (172 LANDPLANES ONLY)

STC Holder: Sierra Industries LTD Address: 122 Howard Langford Drive, Uvalde, TX 78801, United States		Contact us to have your company added here!
STC No.: SA1755NM	Status: Current	App Date: 09/20/1982	Rev Date: 07/31/2017
TC Nos.: 1A15,
Models: Piper Aircraft Inc.: PA-24, PA-24-250, PA-24-260
ACO: AIR-760: Central Certification Branch FTW
Installation of positive flap retraction system.

STC Holder: Sierra Industries LTD Address: 122 Howard Langford Drive, Uvalde, TX 78801, United States		Contact us to have your company added here!
STC No.: SA1756NM	Status: Current	App Date: 09/20/1982	Rev Date: 07/31/2017
TC Nos.: A1EA,
Models: Piper Aircraft Inc.: PA-30, PA-39
ACO: AIR-760: Central Certification Branch FTW
Installation of positive flap retraction system.

STC Holder: Sierra Industries LTD Address: 122 Howard Langford Drive, Uvalde, TX 78801, United States		Contact us to have your company added here!
STC No.: SA1782WE	Status: Current	App Date: 04/22/1968	Rev Date: 07/31/2017
TC Nos.: 2A4,
Models: Twin Commander Aircraft LLC: 680-E
ACO: AIR-760: Central Certification Branch FTW
Installation of drooped ailerons, drooped wing leading edge, stall fence and rudder seal.

STC Holder: Sierra Industries LTD Address: 122 Howard Langford Drive, Uvalde, TX 78801, United States		Contact us to have your company added here!
STC No.: SA1977WE	Status: Current	App Date: 06/19/1969	Rev Date: 07/31/2017
TC Nos.: 3A19,
Models: Textron Aviation Inc.: 150, 150A, 150B, 150C, 150D, 150E, 150F, 150G, 150H, 150J, 150K, 150L
ACO: AIR-760: Central Certification Branch FTW
Installation of recontoured wing leading edge, stall fences, wing tips and positive aileron seals.

STC Holder: Sierra Industries LTD Address: 122 Howard Langford Drive, Uvalde, TX 78801, United States		Contact us to have your company added here!
STC No.: SA2002WE	Status: Current	App Date: 06/19/1969	Rev Date: 07/31/2017
TC Nos.: 3A12,
Models: Textron Aviation Inc.: 172, 172A, 172B, 172C, 172D, 172E, 172F (USAF T-41A), 172G, 172H (USAF T-41A), 172I, 172K, 172L
ACO: AIR-760: Central Certification Branch FTW
Installation of recontoured wing leading edge, stall fences, wing tips and positive aileron seals.

STC Holder: Sierra Industries LTD Address: 122 Howard Langford Drive, Uvalde, TX 78801, United States		Contact us to have your company added here!
STC No.: SA2003WE	Status: Current	App Date: 06/19/1969	Rev Date: 07/31/2017
TC Nos.: 5A6,
Models: Textron Aviation Inc.: 180, 180A, 180B, 180C, 180D, 180E, 180F, 180G, 180H
ACO: AIR-760: Central Certification Branch FTW
Installation of recontoured wing leading edge, stall fences, wing tips and positive aileron seals. (180A, 180B, 180C, 180D, 180E, 180F, 180G, 180H LANDPLANE; SKIPLANE; FLOATPLANE)

STC Holder: Sierra Industries LTD Address: 122 Howard Langford Drive, Uvalde, TX 78801, United States		Contact us to have your company added here!
STC No.: SA2004WE	Status: Current	App Date: 06/19/1969	Rev Date: 07/31/2017
TC Nos.: 3A13,
Models: Textron Aviation Inc.: 182, 182A, 182B, 182C, 182D, 182E, 182F, 182G, 182H, 182J, 182K, 182L, 182M, 182N
ACO: AIR-760: Central Certification Branch FTW
Installation of contoured wing leading edge and following options: stall fences, Robertson wing tips, positive aileron seals.

STC Holder: Sierra Industries LTD Address: 122 Howard Langford Drive, Uvalde, TX 78801, United States		Contact us to have your company added here!
STC No.: SA2121WE	Status: Current	App Date: 07/23/1969	Rev Date: 07/31/2017
TC Nos.: A16CE,
Models: Textron Aviation Inc.: 207, 207A, T207, T207A
ACO: AIR-760: Central Certification Branch FTW
Installation of recontoured wing leading edge, drooped ailerons in flaps down mode, stall fences, and elevator trim spring.

STC Holder: Sierra Industries LTD Address: 122 Howard Langford Drive, Uvalde, TX 78801, United States		Contact us to have your company added here!
STC No.: SA2143WE	Status: Current	App Date: 01/27/1970	Rev Date: 07/31/2017
TC Nos.: 2A13,
Models: Piper Aircraft Inc.: PA-28-235
ACO: AIR-760: Central Certification Branch FTW
Installation of recontoured wing leading edge, drooped ailerons in flaps down mode, wing stall fences, fuselage flap, raked wing tips, flap actuated elevator trim spring, modified flap cove and dorsal fin. (PA-28-235 S/N28-10001 thru 28-7210023)

STC Holder: Sierra Industries LTD Address: 122 Howard Langford Drive, Uvalde, TX 78801, United States		Contact us to have your company added here!
STC No.: SA2172NM	Status: Current	App Date: 07/27/1983	Rev Date: 07/31/2017
TC Nos.: A22CE,
Models: Textron Aviation Inc.: 500
ACO: AIR-760: Central Certification Branch FTW
Installation of LONGWING modification including wing tip extensions, extended pneumatic de-ice boot, increased fuel capacity, and other minor refinements.

STC Holder: Sierra Industries LTD Address: 122 Howard Langford Drive, Uvalde, TX 78801, United States		Contact us to have your company added here!
STC No.: SA2179WE	Status: Current	App Date: 04/07/1970	Rev Date: 07/31/2017
TC Nos.: 2A13,
Models: Piper Aircraft Inc.: PA-28-140, PA-28-150, PA-28-160, PA-28-180
ACO: AIR-760: Central Certification Branch FTW
Installation of leading edge cuff, drooped ailerons in flaps down mode, wing stall fences, raked wing tips, fuselage flap, stabilator trim spring and dorsal fin (optional). (PA-28-180 S/N 28-03, 28-1 thru 28-7205318; S/N 28-E13) (PA-28 SERIES 7305001 AN D UP

STC Holder: Sierra Industries LTD Address: 122 Howard Langford Drive, Uvalde, TX 78801, United States		Contact us to have your company added here!
STC No.: SA2189WE	Status: Current	App Date: 07/14/1970	Rev Date: 07/31/2017
TC Nos.: 3A24,
Models: Textron Aviation Inc.: 185, 185A, 185B, 185C, 185D, 185E, A185E
ACO: AIR-760: Central Certification Branch FTW
Installation of recontoured wing leading edge, stall fences, wing tips, and positive aileron seals. (185, 185A, 185B, 185C, 185E LANDPLANE; FLOATPLANE AND AMPHIBIAN) (185D SKIPLANE)

STC Holder: Sierra Industries LTD Address: 122 Howard Langford Drive, Uvalde, TX 78801, United States		Contact us to have your company added here!
STC No.: SA2191WE	Status: Current	App Date: 04/17/1970	Rev Date: 07/31/2017
TC Nos.: 3A19,
Models: Textron Aviation Inc.: 150D, 150E, 150F, 150G, 150H, 150J, 150K
ACO: AIR-760: Central Certification Branch FTW
Installation of recontoured wing leading edge, stall fences, and drooped ailerons in flaps down mode.

STC Holder: Sierra Industries LTD Address: 122 Howard Langford Drive, Uvalde, TX 78801, United States		Contact us to have your company added here!
STC No.: SA2192WE	Status: Current	App Date: 04/17/1970	Rev Date: 07/31/2017
TC Nos.: 3A19,
Models: Textron Aviation Inc.: 150D, 150E, 150F, 150G, 150H, 150J, 150K, 150L
ACO: AIR-760: Central Certification Branch FTW
Installation of recontoured wing leading edge, stall fences, and drooped ailerons in flaps down mode.

STC Holder: Sierra Industries LTD Address: 122 Howard Langford Drive, Uvalde, TX 78801, United States		Contact us to have your company added here!
STC No.: SA2202WE	Status: Current	App Date: 05/19/1970	Rev Date: 07/31/2017
TC Nos.: 2A13,
Models: Piper Aircraft Inc.: PA-28R-180, PA-28R-200
ACO: AIR-760: Central Certification Branch FTW
Installation of recontoured leading edge, drooped ailerons in flaps down mode, fuselage flap, stabilator trim spring, wing stall fences, raked wing tips and dorsal fin (optional). (PA-28R-200 s/n 28R-35001 thru 28R-7135329 and s/n 28-R-235001 and up)

STC Holder: Sierra Industries LTD Address: 122 Howard Langford Drive, Uvalde, TX 78801, United States		Contact us to have your company added here!
STC No.: SA2217WE	Status: Current	App Date: 07/09/1970	Rev Date: 07/31/2017
TC Nos.: A3SO,
Models: Piper Aircraft Inc.: PA-32-260, PA-32-300, PA-32S-300
ACO: AIR-760: Central Certification Branch FTW
Installation of recontoured wing leading edge, raked wing tips, fuselage flap, wing stall fences, drooped ailerons in flaps down mode and dorsal fin (optional). (PA-32S-300 landplane only)

STC Holder: Sierra Industries LTD Address: 122 Howard Langford Drive, Uvalde, TX 78801, United States		Contact us to have your company added here!
STC No.: SA2242WE	Status: Current	App Date: 08/21/1970	Rev Date: 07/31/2017
TC Nos.: 3A21,
Models: Textron Aviation Inc.: 210, 210-5 (205), 210-5A (205A), 210A, 210B, 210C, 210D, 210E, 210F, 210G, 210H, 210J, 210K, 210L, 210M, T210F, T210G, T210H, T210J, T210K, T210L, T210M
ACO: AIR-760: Central Certification Branch FTW
Installation of recontoured wing leading edge and stall fences.

STC Holder: Sierra Industries LTD Address: 122 Howard Langford Drive, Uvalde, TX 78801, United States		Contact us to have your company added here!
STC No.: SA2326WE	Status: Current	App Date: 07/14/1970	Rev Date: 07/31/2017
TC Nos.: A4CE,
Models: Textron Aviation Inc.: 206, P206, P206A, P206B, P206C, P206D, P206E, TP206B, TP206C, TP206D, TP206E, TU206A, TU206B, TU206C, TU206D, TU206E, U206, U206A, U206B, U206C, U206D
ACO: AIR-760: Central Certification Branch FTW
Installation of recontoured wing leading edge, stall fences, and wing tips. (P206A LANDPLANE) (TP206E LANDPLANE AND SKIPLANE) (P206 LANDPLANE AND FLOATPLANE) (TU206E SKIPLANE)

STC Holder: Sierra Industries LTD Address: 122 Howard Langford Drive, Uvalde, TX 78801, United States		Contact us to have your company added here!
STC No.: SA2327WE	Status: Current	App Date: 03/09/1971	Rev Date: 07/31/2017
TC Nos.: A16CE,
Models: Textron Aviation Inc.: 207, 207A, T207, T207A
ACO: AIR-760: Central Certification Branch FTW
Installation of recontoured wing leading edge, stall fences, and wing tips.

STC Holder: Sierra Industries LTD Address: 122 Howard Langford Drive, Uvalde, TX 78801, United States		Contact us to have your company added here!
STC No.: SA2442WE	Status: Current	App Date: 08/26/1971	Rev Date: 07/31/2017
TC Nos.: 1A10,
Models: Piper Aircraft Inc.: PA-23-235, PA-23-250, PA-E23-250
ACO: AIR-760: Central Certification Branch FTW
Installation of dual hydraulic pump.

STC Holder: Sierra Industries LTD Address: 122 Howard Langford Drive, Uvalde, TX 78801, United States		Contact us to have your company added here!
STC No.: SA2445WE	Status: Current	App Date: 09/29/1971	Rev Date: 07/31/2017
TC Nos.: 1A10,
Models: Piper Aircraft Inc.: PA-23-235, PA-23-250, PA-E23-250
ACO: AIR-760: Central Certification Branch FTW
Installation of recontoured inboard wing leading edge, stall fences, drooped ailerons in flaps down mode, rudder anti-servo tab system.

STC Holder: Sierra Industries LTD Address: 122 Howard Langford Drive, Uvalde, TX 78801, United States		Contact us to have your company added here!
STC No.: SA2495WE	Status: Current	App Date: 12/15/1971	Rev Date: 07/31/2017
TC Nos.: 1A15,
Models: Piper Aircraft Inc.: PA-24, PA-24-250, PA-24-260, PA-24-400
ACO: AIR-760: Central Certification Branch FTW
Installation of recontoured wing leading edge, staff fences, drooped ailerons in flaps down mode, flap actuated stabilator trim system, new wing tips, SC-100 stall warning system.

STC Holder: Sierra Industries LTD Address: 122 Howard Langford Drive, Uvalde, TX 78801, United States		Contact us to have your company added here!
STC No.: SA2646NM	Status: Current	App Date: 08/01/1984	Rev Date: 07/31/2017
TC Nos.: A22CE,
Models: Textron Aviation Inc.: 500
ACO: AIR-760: Central Certification Branch FTW
Optional takeoff gross weight increase for airplanes modified in accordance with STC SA2172NM which includes wing tip extensions, extended pneumatic de-ice boot, and increased fuel capacity.

STC Holder: Sierra Industries LTD Address: 122 Howard Langford Drive, Uvalde, TX 78801, United States		Contact us to have your company added here!
STC No.: SA2714NM	Status: Current	App Date: 01/03/1984	Rev Date: 07/31/2017
TC Nos.: A14SW,
Models: Textron Aviation Inc.: MU-300
ACO: AIR-760: Central Certification Branch FTW
Installation of extended range fuselage auxiliary fuel tank

STC Holder: Sierra Industries LTD Address: 122 Howard Langford Drive, Uvalde, TX 78801, United States		Contact us to have your company added here!
STC No.: SA2736NM	Status: Current	App Date: 11/18/1985	Rev Date: 07/31/2017
TC Nos.: A14SW,
Models: Textron Aviation Inc.: MU-300
ACO: AIR-760: Central Certification Branch FTW
Installation of two-zone temperature control system MU-300 (S/N A023SA only)

STC Holder: Sierra Industries LTD Address: 122 Howard Langford Drive, Uvalde, TX 78801, United States		Contact us to have your company added here!
STC No.: SA2737NM	Status: Current	App Date: 10/24/1985	Rev Date: 07/31/2017
TC Nos.: A14SW,
Models: Textron Aviation Inc.: MU-300
ACO: AIR-760: Central Certification Branch FTW
Installation of aft fuselage maintenance access doors.

STC Holder: Sierra Industries LTD Address: 122 Howard Langford Drive, Uvalde, TX 78801, United States		Contact us to have your company added here!
STC No.: SA2744NM	Status: Current	App Date: 04/22/1986	Rev Date: 07/31/2017
TC Nos.: A16SW,
Models: Textron Aviation Inc.: 400
ACO: AIR-760: Central Certification Branch FTW
Installation of extended range fuselage auxiliary fuel tank.

STC Holder: Sierra Industries LTD Address: 122 Howard Langford Drive, Uvalde, TX 78801, United States		Contact us to have your company added here!
STC No.: SA2745NM	Status: Current	App Date: 04/22/1986	Rev Date: 07/31/2017
TC Nos.: A16SW,
Models: Textron Aviation Inc.: 400
ACO: AIR-760: Central Certification Branch FTW
Installation of aft fuselage fuel tank fill system.

STC Holder: Sierra Industries LTD Address: 122 Howard Langford Drive, Uvalde, TX 78801, United States		Contact us to have your company added here!
STC No.: SA3002WE	Status: Current	App Date: 01/08/1974	Rev Date: 07/31/2017
TC Nos.: A7SO,
Models: Piper Aircraft Inc.: PA-34-200
ACO: AIR-760: Central Certification Branch FTW
Installation of wing tip fuel tanks of 17 gal capacity (each).

STC Holder: Sierra Industries LTD Address: 122 Howard Langford Drive, Uvalde, TX 78801, United States		Contact us to have your company added here!
STC No.: SA3376NM	Status: Current	App Date: 01/09/1986	Rev Date: 07/31/2017
TC Nos.: 3A25,
Models: Textron Aviation Inc.: 320E
ACO: AIR-760: Central Certification Branch FTW
Installation of fowler flaps and a flap activated elevator up spring.

STC Holder: Sierra Industries LTD Address: 122 Howard Langford Drive, Uvalde, TX 78801, United States		Contact us to have your company added here!
STC No.: SA3634SW	Status: Current	App Date: 10/24/1985	Rev Date: 07/14/2017
TC Nos.: A4CE,
Models: Textron Aviation Inc.: 206H, P206A, P206B, P206C, P206D, T206H, U206A, U206B, U206C, U206D, U206E, U206F, U206G
ACO: AIR-760: Central Certification Branch FTW
Install three auxiliary bladder type fuel tanks in each wing.

STC Holder: Sierra Industries LTD Address: 122 Howard Langford Drive, Uvalde, TX 78801, United States		Contact us to have your company added here!
STC No.: SA3853SW	Status: Current	App Date: 02/10/1986	Rev Date: 07/31/2017
TC Nos.: A16CE,
Models: Textron Aviation Inc.: 207
ACO: AIR-760: Central Certification Branch FTW
Install three auxiliary bladder type fuel tanks in each wing.

STC Holder: Sierra Industries LTD Address: 122 Howard Langford Drive, Uvalde, TX 78801, United States		Contact us to have your company added here!
STC No.: SA3885NM	Status: Current	App Date: 10/22/1987	Rev Date: 07/31/2017
TC Nos.: A27CE,
Models: Textron Aviation Inc.: 551
ACO: AIR-760: Central Certification Branch FTW
Installation of medical air transport unit.

STC Holder: Sierra Industries LTD Address: 122 Howard Langford Drive, Uvalde, TX 78801, United States		Contact us to have your company added here!
STC No.: SA4098NM	Status: Current	App Date: 11/01/1990	Rev Date: 07/31/2017
TC Nos.: A22CE,
Models: Textron Aviation Inc.: 500, 550, 560
ACO: AIR-760: Central Certification Branch FTW
Installation of a replacement cabin door hinge assembly.

STC Holder: Sierra Industries LTD Address: 122 Howard Langford Drive, Uvalde, TX 78801, United States		Contact us to have your company added here!
STC No.: SA4099NM	Status: Current	App Date: 11/01/1990	Rev Date: 07/31/2017
TC Nos.: A27CE,
Models: Textron Aviation Inc.: 501, 551
ACO: AIR-760: Central Certification Branch FTW
Installation of a replacement cabin door hinge assembly.

STC Holder: Sierra Industries LTD Address: 122 Howard Langford Drive, Uvalde, TX 78801, United States		Contact us to have your company added here!
STC No.: SA4406NM	Status: Current	App Date: 01/16/1982	Rev Date: 07/31/2017
TC Nos.: A27CE,
Models: Textron Aviation Inc.: 501
ACO: AIR-760: Central Certification Branch FTW
Installation of Pratt & Whitney JT15D-4 engines including minor aircraft modifications.

STC Holder: Sierra Industries LTD Address: 122 Howard Langford Drive, Uvalde, TX 78801, United States		Contact us to have your company added here!
STC No.: SA5218NM	Status: Current	App Date: 05/23/1991	Rev Date: 07/31/2017
TC Nos.: A22CE,
Models: Textron Aviation Inc.: 550
ACO: AIR-760: Central Certification Branch FTW
Installation of medical air transport unit.

STC Holder: Sierra Industries LTD Address: 122 Howard Langford Drive, Uvalde, TX 78801, United States		Contact us to have your company added here!
STC No.: SA5232NM	Status: Current	App Date: 09/16/1991	Rev Date: 07/31/2017
TC Nos.: A22CE,
Models: Textron Aviation Inc.: 550, 560
ACO: AIR-760: Central Certification Branch FTW
Intallation of D.C. converter.

STC Holder: Sierra Industries LTD Address: 122 Howard Langford Drive, Uvalde, TX 78801, United States		Contact us to have your company added here!
STC No.: SA5233NM	Status: Current	App Date: 08/28/1991	Rev Date: 07/31/2017
TC Nos.: A22CE,
Models: Textron Aviation Inc.: 500, 550, 560
ACO: AIR-760: Central Certification Branch FTW
Installation of side-looking camera hatch.

STC Holder: Sierra Industries LTD Address: 122 Howard Langford Drive, Uvalde, TX 78801, United States		Contact us to have your company added here!
STC No.: SA5234NM	Status: Current	App Date: 08/28/1991	Rev Date: 07/31/2017
TC Nos.: A22CE,
Models: Textron Aviation Inc.: 560
ACO: AIR-760: Central Certification Branch FTW
Installation of a replacement cabin door optically flat window.

STC Holder: Sierra Industries LTD Address: 122 Howard Langford Drive, Uvalde, TX 78801, United States		Contact us to have your company added here!
STC No.: SA5737SW	Status: Current	App Date: 04/05/1984	Rev Date: 07/31/2017
TC Nos.: 3A21,
Models: Textron Aviation Inc.: 210K, 210L, 210M, P210N, T210K, T210L, T210M
ACO: AIR-760: Central Certification Branch FTW
Remove main landing gear doors and associated hydraulic system and cover the wheel wells with a fairing.

STC Holder: Sierra Industries LTD Address: 122 Howard Langford Drive, Uvalde, TX 78801, United States		Contact us to have your company added here!
STC No.: SA5934SW	Status: Current	App Date: 09/28/1984	Rev Date: 07/14/2017
TC Nos.: 3A21,
Models: Textron Aviation Inc.: 210K, 210L, 210M, P210N, T210K, T210L, T210M
ACO: AIR-760: Central Certification Branch FTW
Convert hydraulic nose gear door actuating system to mechanical system.

STC Holder: Sierra Industries LTD Address: 122 Howard Langford Drive, Uvalde, TX 78801, United States		Contact us to have your company added here!
STC No.: SA732NW	Status: Historical	App Date: 05/04/1978	Rev Date: 07/31/2017
TC Nos.: A27CE,
Models: Textron Aviation Inc.: 501
ACO: Ft. Worth ACO Branch, Tel: +1 (817) 222-5140
Installation of Eagle SP performance system, including recontoured wing leading edge, wing tip extension, increased gross weight, increased fuel capacity, and other minor refinements.

STC Holder: Sierra Industries LTD Address: 122 Howard Langford Drive, Uvalde, TX 78801, United States		Contact us to have your company added here!
STC No.: SA756NW	Status: Current	App Date: 11/27/1978	Rev Date: 07/31/2017
TC Nos.: 3A21,
Models: Textron Aviation Inc.: 210N, P210N, T210N
ACO: AIR-760: Central Certification Branch FTW
Installation of a droop aileron system, stall fences and stall strips.

STC Holder: Sierra Industries LTD Address: 122 Howard Langford Drive, Uvalde, TX 78801, United States		Contact us to have your company added here!
STC No.: SA760NW	Status: Historical	App Date: 01/24/1979	Rev Date: 09/08/2005
TC Nos.: 3A21,
Models: The Cessna Aircraft Company: 210L, 210M, 210N, P210N, T210L, T210M, T210N
ACO: Ft. Worth ACO Branch, Tel: +1 (817) 222-5140
Installation of RCA digital weather radar system.

STC Holder: Sierra Industries LTD Address: 122 Howard Langford Drive, Uvalde, TX 78801, United States		Contact us to have your company added here!
STC No.: SA7768SW	Status: Current	App Date: 03/23/1988	Rev Date: 07/31/2017
TC Nos.: A4CE,
Models: Textron Aviation Inc.: 206, P206, U206
ACO: AIR-760: Central Certification Branch FTW
Installation of replacement extended range bladder fuel cells. (206 S/N 206-0001 thru 206-0275 P206; S/N P206-0002 thru P206-0647) (U206 S/N U206-0276 - U206-4649)

STC Holder: Sierra Industries LTD Address: 122 Howard Langford Drive, Uvalde, TX 78801, United States		Contact us to have your company added here!
STC No.: SA7834SW	Status: Current	App Date: 01/05/1988	Rev Date: 07/31/2017
TC Nos.: 3A24,
Models: Textron Aviation Inc.: A185F
ACO: AIR-760: Central Certification Branch FTW
Provisions for auxiliary fuel tanks for S/N 18502837 only.

STC Holder: Sierra Industries LTD Address: 122 Howard Langford Drive, Uvalde, TX 78801, United States		Contact us to have your company added here!
STC No.: SA7838SW	Status: Current	App Date: 03/23/1988	Rev Date: 07/31/2017
TC Nos.: A16CE,
Models: Textron Aviation Inc.: 207
ACO: AIR-760: Central Certification Branch FTW
Installation of replacement extended range bladder fuel cells.

STC Holder: Sierra Industries LTD Address: 122 Howard Langford Drive, Uvalde, TX 78801, United States		Contact us to have your company added here!
STC No.: SA7839SW	Status: Current	App Date: 03/23/1988	Rev Date: 07/31/2017
TC Nos.: 3A21,
Models: Textron Aviation Inc.: 210, 210-5 (205), T210F, T210G, T210H, T210J, T210K, T210L, T210M, T210N, T210R
ACO: AIR-760: Central Certification Branch FTW
Installation of replacement extended range bladder fuel cells. (210-5 (205) S/N 205-0001 - 205-0577) (210 S/N 21057841 - 21058818) (T210 SERIES S/N T210-0001-T210-0197)

STC Holder: Sierra Industries LTD Address: 122 Howard Langford Drive, Uvalde, TX 78801, United States		Contact us to have your company added here!
STC No.: SA8020SW	Status: Current	App Date: 01/18/1991	Rev Date: 07/31/2017
TC Nos.: A27CE,
Models: Textron Aviation Inc.: 501
ACO: AIR-760: Central Certification Branch FTW
Installation of engine thrust reversers.

STC Holder: Sierra Industries LTD Address: 122 Howard Langford Drive, Uvalde, TX 78801, United States		Contact us to have your company added here!
STC No.: SA802NW	Status: Current	App Date: 06/15/1979	Rev Date: 09/08/2005
TC Nos.: A22CE,
Models: Textron Aviation Inc.: 500
ACO: AIR-760: Central Certification Branch FTW
Installation of a transponder identification switch on left hand control wheel.

STC Holder: Sierra Industries LTD Address: 122 Howard Langford Drive, Uvalde, TX 78801, United States		Contact us to have your company added here!
STC No.: SA805NW	Status: Current	App Date: 07/12/1979	Rev Date: 07/31/2017
TC Nos.: A22CE,
Models: Textron Aviation Inc.: 500
ACO: AIR-760: Central Certification Branch FTW
Installation of an engine cover storage box.

STC Holder: Sierra Industries LTD Address: 122 Howard Langford Drive, Uvalde, TX 78801, United States		Contact us to have your company added here!
STC No.: SA8176SW	Status: Current	App Date: 11/20/1989	Rev Date: 07/31/2017
TC Nos.: A22CE,
Models: Textron Aviation Inc.: 500
ACO: AIR-760: Central Certification Branch FTW
Install Pratt & Whitney Canada JT15D-1A engines.

STC Holder: Sierra Industries LTD Address: 122 Howard Langford Drive, Uvalde, TX 78801, United States		Contact us to have your company added here!
STC No.: SA8323SW	Status: Current	App Date: 12/26/1989	Rev Date: 07/31/2017
TC Nos.: A50EU,
Models: Pilatus Aircraft Limited: PC-7
ACO: AIR-760: Central Certification Branch FTW
Install Pratt & Whitney Canada PT6A-25C engine and Hartzell HC-B3TN-2/T10178(N)-8R propeller.

STC Holder: Sierra Industries LTD Address: 122 Howard Langford Drive, Uvalde, TX 78801, United States		Contact us to have your company added here!
STC No.: SA8436SW	Status: Current	App Date: 04/06/1992	Rev Date: 07/31/2017
TC Nos.: A22CE,
Models: Textron Aviation Inc.: 500
ACO: AIR-760: Central Certification Branch FTW
Installation of Pratt & Whitney Canada JT15D-18 engines.

STC Holder: Sierra Industries LTD Address: 122 Howard Langford Drive, Uvalde, TX 78801, United States		Contact us to have your company added here!
STC No.: SA8437SW	Status: Current	App Date: 04/06/1992	Rev Date: 07/14/2017
TC Nos.: A22CE,
Models: Textron Aviation Inc.: 500, 550, 552, 560, S550
ACO: AIR-760: Central Certification Branch FTW
Installation of nose radome quick release mechanism.

STC Holder: Sierra Industries LTD Address: 122 Howard Langford Drive, Uvalde, TX 78801, United States		Contact us to have your company added here!
STC No.: SA8458SW	Status: Current	App Date: 04/06/1992	Rev Date: 07/14/2021
TC Nos.: A27CE,
Models: Textron Aviation Inc.: 501, 551
ACO: AIR-760: Central Certification Branch FTW
Installation of quick release nose radome latch mechanisms.

STC Holder: Sierra Industries LTD Address: 122 Howard Langford Drive, Uvalde, TX 78801, United States		Contact us to have your company added here!
STC No.: SA8828SW	Status: Current	App Date: 11/29/1993	Rev Date: 07/14/2017
TC Nos.: A27CE,
Models: Textron Aviation Inc.: 501, 551
ACO: AIR-760: Central Certification Branch FTW
Installation of inertial reel assembly on pilot and co-pilot shoulder harnesses.

STC Holder: Sierra Industries LTD Address: 122 Howard Langford Drive, Uvalde, TX 78801, United States		Contact us to have your company added here!
STC No.: SA8829SW	Status: Historical	App Date: 11/29/1993	Rev Date: 07/21/2005
TC Nos.: A22CE,
Models: The Cessna Aircraft Company: 500, 550
ACO: Ft. Worth ACO Branch, Tel: +1 (817) 222-5140
Installation of an inertial reel assembly on the pilot and co-pilot shoulder harnesses.

STC Holder: Sierra Industries LTD Address: 122 Howard Langford Drive, Uvalde, TX 78801, United States		Contact us to have your company added here!
STC No.: SA8829SW	Status: Current	App Date: 11/29/1993	Rev Date: 07/14/2017
TC Nos.: A22CE,
Models: Textron Aviation Inc.: 500, 550
ACO: AIR-760: Central Certification Branch FTW
Installation of an inertial reel assembly on the pilot and co-pilot shoulder harnesses.

STC Holder: Sierra Industries LTD Address: 122 Howard Langford Drive, Uvalde, TX 78801, United States		Contact us to have your company added here!
STC No.: SA8855SW	Status: Current	App Date: 04/04/1994	Rev Date: 07/31/2017
TC Nos.: A27CE,
Models: Textron Aviation Inc.: 501
ACO: AIR-760: Central Certification Branch FTW
Installation of two Pratt & Whitney Canada JT15D-1B engines.

STC Holder: Sierra Industries LTD Address: 122 Howard Langford Drive, Uvalde, TX 78801, United States		Contact us to have your company added here!
STC No.: SA892NW	Status: Current	App Date: 10/16/1979	Rev Date: 07/31/2017
TC Nos.: A7CE,
Models: Textron Aviation Inc.: 414A
ACO: AIR-760: Central Certification Branch FTW
Addition of fowler wing flaps elevator trim spring with cockpit tension select lever, and fuselage strakes.

STC Holder: Sierra Industries LTD Address: 122 Howard Langford Drive, Uvalde, TX 78801, United States		Contact us to have your company added here!
STC No.: SA903NW	Status: Current	App Date: 11/02/1978	Rev Date: 07/31/2017
TC Nos.: A22CE,
Models: Textron Aviation Inc.: 500
ACO: AIR-760: Central Certification Branch FTW
Installation of wing tip recognition lights.

STC Holder: Sierra Industries LTD Address: 122 Howard Langford Drive, Uvalde, TX 78801, United States		Contact us to have your company added here!
STC No.: SA926NW	Status: Current	App Date: 04/14/1980	Rev Date: 07/31/2017
TC Nos.: A27CE,
Models: Textron Aviation Inc.: 501
ACO: AIR-760: Central Certification Branch FTW
Installation of wing tip recognition lights.

STC Holder: Sierra Industries LTD Address: 122 Howard Langford Drive, Uvalde, TX 78801, United States		Contact us to have your company added here!
STC No.: SA927NW	Status: Current	App Date: 01/07/1980	Rev Date: 07/31/2017
TC Nos.: A7CE,
Models: Textron Aviation Inc.: 402C
ACO: AIR-760: Central Certification Branch FTW
Addition of fowler wing flaps, elevator trim spring with cockpit tension select lever, fuselage strakes, and nacelle strakes.

STC Holder: Sierra Industries LTD Address: 122 Howard Langford Drive, Uvalde, TX 78801, United States		Contact us to have your company added here!
STC No.: SA932NW	Status: Current	App Date: 03/06/1980	Rev Date: 07/31/2017
TC Nos.: A22CE,
Models: Textron Aviation Inc.: 500
ACO: AIR-760: Central Certification Branch FTW
Limited to Cessna Model 500 airplane S/N 0292, ASTEC S/N 20 only. Installation of the Global navigation system, GNS500A.

STC Holder: Sierra Industries LTD Address: 122 Howard Langford Drive, Uvalde, TX 78801, United States		Contact us to have your company added here!
STC No.: SA957NW	Status: Current	App Date: 01/29/1980	Rev Date: 07/31/2017
TC Nos.: 3A13,
Models: Textron Aviation Inc.: 182P, 182Q, 182R, R182, T182, TR182
ACO: AIR-760: Central Certification Branch FTW
Installation of RCA digital weather radar system.

STC Holder: Sierra Industries LTD Address: 122 Howard Langford Drive, Uvalde, TX 78801, United States		Contact us to have your company added here!
STC No.: ST00009DE	Status: Current	App Date: 09/29/1992	Rev Date: 07/31/2017
TC Nos.: A3EU,
Models: Textron Aviation Inc.: BAe.125 Series 800A
ACO: AIR-760: Central Certification Branch FTW
Installation of a medical stretcher.

STC Holder: Sierra Industries LTD Address: 122 Howard Langford Drive, Uvalde, TX 78801, United States		Contact us to have your company added here!
STC No.: ST00232DE	Status: Current	App Date: 03/05/1996	Rev Date: 07/31/2017
TC Nos.: A22CE,
Models: Textron Aviation Inc.: 560
ACO: AIR-760: Central Certification Branch FTW
Installation of a cabin door optically flat window.

STC Holder: Sierra Industries LTD Address: 122 Howard Langford Drive, Uvalde, TX 78801, United States		Contact us to have your company added here!
STC No.: ST01767WI	Status: Historical	App Date: 12/09/2009	Rev Date: 10/21/2014
TC Nos.: A16SW,
Models: Beechcraft Corporation: 400A
ACO: Ft. Worth ACO Branch, Tel: +1 (817) 222-5140
Installation of Winglets.

STC Holder: Sierra Industries LTD Address: 122 Howard Langford Drive, Uvalde, TX 78801, United States		Contact us to have your company added here!
STC No.: ST02363LA	Status: Current	App Date: 03/11/2010	Rev Date: 07/31/2017
TC Nos.: A3EU,
Models: Textron Aviation Inc.: Hawker 800XP
ACO: AIR-760: Central Certification Branch FTW
Installation of Honeywell TFE731-50R engines.

STC Holder: Sierra Industries LTD Address: 122 Howard Langford Drive, Uvalde, TX 78801, United States		Contact us to have your company added here!
STC No.: ST02538LA	Status: Historical	App Date: 12/28/2009	Rev Date: 06/18/2015
TC Nos.: A16SW,
Models: Beechcraft Corporation: 400A
ACO: Ft. Worth ACO Branch, Tel: +1 (817) 222-5140
Replacement of Pratt and Whitney JT15D-5 series engines with Williams International FJ44-4A-32 engines with Full Authority Digital Electronic Control (FADEC) and associated systems

STC Holder: Sierra Industries LTD Address: 122 Howard Langford Drive, Uvalde, TX 78801, United States		Contact us to have your company added here!
STC No.: ST02538LA	Status: Historical	App Date: 12/28/2009	Rev Date: 07/14/2017
TC Nos.: A16SW,
Models: Textron Aviation Inc.: 400A
ACO: Ft. Worth ACO Branch, Tel: +1 (817) 222-5140
Replacement of Pratt and Whitney JT15D-5 series engines with Williams International FJ44-4A-32 engines with Full Authority Digital Electronic Control (FADEC) and associated systems

STC Holder: Sierra Industries LTD Address: 122 Howard Langford Drive, Uvalde, TX 78801, United States		Contact us to have your company added here!
STC No.: ST02883NY-D	Status: Historical	App Date: 05/10/2011	Rev Date: 08/22/2016
TC Nos.: A16SW,
Models: Beechcraft Corporation: 400A
ACO: Ft. Worth ACO Branch, Tel: +1 (817) 222-5140
Installation of Rockwell Collins Pro Line 21

STC Holder: Sierra Industries LTD Address: 122 Howard Langford Drive, Uvalde, TX 78801, United States		Contact us to have your company added here!
STC No.: ST09011SC	Status: Current	App Date: 02/14/1994	Rev Date: 07/14/2017
TC Nos.: A22CE,
Models: Textron Aviation Inc.: 500, 550, S550
ACO: AIR-760: Central Certification Branch FTW
Installation of a pilot's, control wheel mounted, alternate gear horn silence switch.

STC Holder: Sierra Industries LTD Address: 122 Howard Langford Drive, Uvalde, TX 78801, United States		Contact us to have your company added here!
STC No.: ST09109SC	Status: Current	App Date: 02/24/1994	Rev Date: 07/31/2017
TC Nos.: A22CE,
Models: Textron Aviation Inc.: 500
ACO: AIR-760: Central Certification Branch FTW
Installation of avionics master switch.

STC Holder: Sierra Industries LTD Address: 122 Howard Langford Drive, Uvalde, TX 78801, United States		Contact us to have your company added here!
STC No.: ST09559AC	Status: Current	App Date: 06/12/1998	Rev Date: 07/14/2017
TC Nos.: A22CE, A27CE,
Models: Textron Aviation Inc.: 500, 501, 550, S550
ACO: AIR-760: Central Certification Branch FTW
Installation of Williams/Rolls FJ44-2A engine. Installation of STC SA732NW required for this mod.

STC Holder: Sierra Industries LTD Address: 122 Howard Langford Drive, Uvalde, TX 78801, United States		Contact us to have your company added here!
STC No.: ST09630AC	Status: Current	App Date: 06/26/2000	Rev Date: 07/31/2017
TC Nos.: A22CE, A27CE,
Models: Textron Aviation Inc.: 500, 501, 550, 551, 560, S550
ACO: AIR-760: Central Certification Branch FTW
Installation of Meggitt Avionics Engine Instrument Display System.

STC Holder: Sierra Industries LTD Address: 122 Howard Langford Drive, Uvalde, TX 78801, United States		Contact us to have your company added here!
STC No.: ST09718AC	Status: Current	App Date: 05/30/2008	Rev Date: 07/31/2017
TC Nos.: A22CE, A27CE,
Models: Textron Aviation Inc.: 500, 501, 550, 551, 560, S550
ACO: AIR-760: Central Certification Branch FTW
Installation of Artex C406 (406 MHz) Series emergency locator transmitter, antenna, and remote switch assembly

STC Holder: Sierra Industries LTD Address: 122 Howard Langford Drive, Uvalde, TX 78801, United States		Contact us to have your company added here!
STC No.: ST09863AC	Status: Historical	App Date: 10/20/2015	Rev Date: 09/01/2016
TC Nos.: A22CE,
Models: Textron Aviation Inc.: 500, 550, 560, S550
ACO: Ft. Worth ACO Branch, Tel: +1 (817) 222-5140
Removal of original equipment manufacturer ladder and installation of a new design cabin entrance step assembly

STC Holder: Sierra Industries LTD Address: 122 Howard Langford Drive, Uvalde, TX 78801, United States		Contact us to have your company added here!
STC No.: ST09863AC	Status: Current	App Date: 10/20/2015	Rev Date: 07/14/2017
TC Nos.: A22CE,
Models: Textron Aviation Inc.: 500, 550, 560, S550
ACO: AIR-760: Central Certification Branch FTW
Removal of original equipment manufacturer ladder and installation of a new design cabin entrance step assembly

STC Holder: Sierra Industries LTD Address: 122 Howard Langford Drive, Uvalde, TX 78801, United States		Contact us to have your company added here!
STC No.: ST09863AC	Status: Historical	App Date: 10/20/2015	Rev Date: 09/27/2016
TC Nos.: A22CE,
Models: Textron Aviation Inc.: 500, 550, 560, S550
ACO: Ft. Worth ACO Branch, Tel: +1 (817) 222-5140
Removal of original equipment manufacturer ladder and installation of a new design cabin entrance step assembly

STC Holder: Sierra Industries LTD Address: 122 Howard Langford Drive, Uvalde, TX 78801, United States		Contact us to have your company added here!
STC No.: ST09975SC	Status: Current	App Date: 07/14/2000	Rev Date: 07/31/2017
TC Nos.: A22CE,
Models: Textron Aviation Inc.: 500
ACO: AIR-760: Central Certification Branch FTW
Optimal maximum zero fuel weight (MZFW) increase for aircraft modified per STC SA2172NM installation of LONGWING Modification including wing tip extensions, extended pneumatic de-ice boot, increased fuel capacity, and other minor refinements.

STC Holder: Sierra Industries LTD Address: 122 Howard Langford Drive, Uvalde, TX 78801, United States		Contact us to have your company added here!
STC No.: ST165RM	Status: Current	App Date: 03/15/1978	Rev Date: 07/31/2017
TC Nos.: A22CE,
Models: Textron Aviation Inc.: 550
ACO: AIR-760: Central Certification Branch FTW
Installation of fiberglass tail cone in lieu of metal tail cone.