# STC SA3281WE

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Apollo Airways, Inc, United States
- Description: Modification of cabin and cockpit air distribution system.
- Status date: October 12, 1976
- 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/17C30702F09210E185256CC2000A964E.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA3281WE

## 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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