# STC SA579EA

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Trans World Airlines Inc, United States
- Description: Replace Bendix type 15866, 15897 and 19903 vertical gyros with Bendix type 19911 or 19912 ertical gyros. (22 -1 (880))
- Status date: January 1, 1960
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS 4A27](https://openairdocs.org/tcds/4A27)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/DAD8C3329FF3C553862570D10071A227.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA579EA

## ADs that name it (0)

None.

## Approved models (1)

- General Dynamics Corporation 22 ([TCDS 4A27](https://openairdocs.org/tcds/4A27))

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