# STC SA4-271

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Jay- Dee Aircraft Supply Co, United States
- Description: Installation of Sperry A-12 auto-pilot.
- Status date: January 1, 1960
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A-793](https://openairdocs.org/tcds/A-793)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/B22DCF13DEA54294862570CE006AFF4E.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA4-271

## ADs that name it (0)

None.

## Approved models (1)

- Tracor Flight Systems Inc. 240 Series ([TCDS A-793](https://openairdocs.org/tcds/A-793))

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