# STC SA275GL

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Air Illinois, Inc, United States
- Description: Modification of cabin and cockpit conditioned air and air distribution system.
- Status date: November 6, 1978
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A21EU](https://openairdocs.org/tcds/A21EU)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/361B8D97C68994A285256CC20008C8A0.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA275GL

## ADs that name it (0)

None.

## Approved models (1)

- British Aerospace (Scotland) HP 137 Jetstream Mk. 1 ([TCDS A21EU](https://openairdocs.org/tcds/A21EU))

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From OpenAirDocs.org, an independent open copy of FAA and NTSB data. Only the Federal Register edition on govinfo.gov is the official legal text of an AD.