# STC ST09139SC

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: ARINC Research Corp., United States
- Description: Installation of a JET-AI-804BY Emergency Attitude Indicator in the pilot's instrument panel.
- Status date: January 4, 1996
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A6WE](https://openairdocs.org/tcds/A6WE)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/35671AC627BFC0D785256CC300035DA3.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/ST09139SC

## ADs that name it (0)

None.

## Approved models (2)

- McDonnell Douglas Corporation DC-9-32 ([TCDS A6WE](https://openairdocs.org/tcds/A6WE))
- McDonnell Douglas Corporation DC-9-32F ([TCDS A6WE](https://openairdocs.org/tcds/A6WE))

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