# STC SA4-908

- Type: Supplemental type certificate
- Status: Current, Amended
- Holder: Serv-Aero Engineering Inc, United States
- Description: Pratt & Whitney R1340-AN1 engine and Hamilton Standard propeller 12D40-305/6101A-12 propeller.
- Status date: April 29, 1974
- Product: Aircraft, Single-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A-743](https://openairdocs.org/tcds/A-743)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/202ADA9E0E319F4D85256CC2000C5FC6.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA4-908

## ADs that name it (0)

None.

## Approved models (1)

- Boeing Airplane Company Wichita Division 75 Series ([TCDS A-743](https://openairdocs.org/tcds/A-743))

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