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DataBases updated: Apr 4th, 2025
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STC Holder: Helio Enterprises Inc

The Aviation DataBase -- STC Selection System
Aviation DataSource, Inc.

No. of STCs: 1

STC Holder: Helio Enterprises Inc
Address: 17644 SE 293rd Place, Kent, WA 98042, United States
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STC No.: SA5927NMStatus: CurrentApp Date: 01/06/1993Rev Date: 02/18/1993
TC Nos.: A4EA,
Models:
Alliance Aircraft Group LLC:
HST-550A (USAF AU-24A)
ACO: AIR-770: West Certification Branch SEA
Replace United Aircraft of Canada model PT6A-27 engine with model PT6A-34.