# STC SA253AL

- Type: Supplemental type certificate
- Status: Current, Amended
- Holder: M R Borer Aircraft Svc, United States
- Description: Installation of McCauley 1A175/GM propeller.
- Status date: August 4, 1971
- Product: Aircraft, Single-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A-797](https://openairdocs.org/tcds/A-797)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/2D5BCCDE2574A33A85256CC200015F89.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA253AL

## ADs that name it (0)

None.

## Approved models (1)

- The New Piper Aircraft Inc. PA-14 ([TCDS A-797](https://openairdocs.org/tcds/A-797))

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