# STC SA4-1143

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Western Commander, Inc, United States
- Description: Installation of Lycoming O-320-A3B engine and Hartzell HC-82XL-6B/7636D-2 propeller.
- Status date: November 4, 1970
- Product: Aircraft, Single-Engine
- Certification basis: Part 21
- Data sheets: [TCDS 1A2](https://openairdocs.org/tcds/1A2)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/E2F49CD5EF17C1EC85256CC2000C5CDE.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA4-1143

## ADs that name it (0)

None.

## Approved models (4)

- The New Piper Aircraft Inc. PA-18-\"150\" ([TCDS 1A2](https://openairdocs.org/tcds/1A2))
- The New Piper Aircraft Inc. PA-18A-\"150\" ([TCDS 1A2](https://openairdocs.org/tcds/1A2))
- The New Piper Aircraft Inc. PA-18AS-\"150\" ([TCDS 1A2](https://openairdocs.org/tcds/1A2))
- The New Piper Aircraft Inc. PA-18S-\"150\" ([TCDS 1A2](https://openairdocs.org/tcds/1A2))

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