# STC SA4-1427

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Bendix Aviation Corporation, United States
- Description: Pratt & Whitney R-985 Series engines modified for fuel injection.
- Status date: January 1, 1960
- Product: Aircraft, Small Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A-2-582](https://openairdocs.org/tcds/A-2-582), [TCDS A-757](https://openairdocs.org/tcds/A-757), [TCDS A-765](https://openairdocs.org/tcds/A-765)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/BA71A56822E9DA1C862570CF0078D696.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA4-1427

## ADs that name it (0)

None.

## Approved models (3)

- Raytheon Aircraft Company Army AT-11 ([TCDS A-2-582](https://openairdocs.org/tcds/A-2-582))
- Raytheon Aircraft Company C-45 Series ([TCDS A-765](https://openairdocs.org/tcds/A-765))
- Raytheon Aircraft Company C18 Series ([TCDS A-757](https://openairdocs.org/tcds/A-757))

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