# STC SA1638SO

- Type: Supplemental type certificate
- Status: Current, Amended
- Holder: J R Engineering, Inc, United States
- Description: Installation of 'door ajar' warning lights for the passenger door and the galley service door.
- Status date: October 26, 1984
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A5EU](https://openairdocs.org/tcds/A5EU)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/EBCF84E2E77E185485256CC1008214D7.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA1638SO

## ADs that name it (0)

None.

## Approved models (2)

- British Aerospace Airbus Limited 1-11 200 Series ([TCDS A5EU](https://openairdocs.org/tcds/A5EU))
- British Aerospace Airbus Limited 1-11 400 Series ([TCDS A5EU](https://openairdocs.org/tcds/A5EU))

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