# STC SA157SO

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Piper Aircraft Corp, United States
- Description: Air-oil type main landing gear shock absorber.
- Status date: January 1, 1960
- Product: Aircraft, Single-Engine
- Certification basis: Part 21
- Data sheets: [TCDS 2A10](https://openairdocs.org/tcds/2A10), [TCDS 2A8](https://openairdocs.org/tcds/2A8)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/9232ABF7D62B3DAB862570C70054544B.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA157SO

## ADs that name it (0)

None.

## Approved models (2)

- The New Piper Aircraft Inc. PA-25 Series (Normal Cat.) ([TCDS 2A8](https://openairdocs.org/tcds/2A8))
- The New Piper Aircraft Inc. PA-25 Series (Restricted Cat.) ([TCDS 2A10](https://openairdocs.org/tcds/2A10))

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