# STC SA3127WE

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Western Airlines, Inc, United States
- Description: Installation of first class passenger seats incorporating unitized oxygen systems.
- Status date: December 11, 1975
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A22WE](https://openairdocs.org/tcds/A22WE)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/D3671E748843F55F85256CC2000A942F.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA3127WE

## ADs that name it (0)

None.

## Approved models (1)

- McDonnell Douglas Corporation DC-10-10 ([TCDS A22WE](https://openairdocs.org/tcds/A22WE))

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.