# STC SA1991CE

- Type: Supplemental type certificate
- Status: Current, Amended
- Holder: Petersen Aviation Inc, United States
- Description: Operation on leaded and/or unleaded automotive gasoline.
- Status date: July 11, 1984
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A-669](https://openairdocs.org/tcds/A-669)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/02F7CF1285EA8A2B85256CC10083D3D7.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA1991CE

## ADs that name it (0)

None.

## Approved models (8)

- McDonnell Douglas Corporation DC3A-S1C3G ([TCDS A-669](https://openairdocs.org/tcds/A-669))
- McDonnell Douglas Corporation DC3A-S1CG ([TCDS A-669](https://openairdocs.org/tcds/A-669))
- McDonnell Douglas Corporation DC3A-S4C4G ([TCDS A-669](https://openairdocs.org/tcds/A-669))
- McDonnell Douglas Corporation DC3A-SC3G ([TCDS A-669](https://openairdocs.org/tcds/A-669))
- McDonnell Douglas Corporation DC3A-SCG ([TCDS A-669](https://openairdocs.org/tcds/A-669))
- McDonnell Douglas Corporation DC3C-S1C3G ([TCDS A-669](https://openairdocs.org/tcds/A-669))
- McDonnell Douglas Corporation DC3C-S4C4G ([TCDS A-669](https://openairdocs.org/tcds/A-669))
- McDonnell Douglas Corporation DC3D-R-1830-90C (Army C-117A) ([TCDS A-669](https://openairdocs.org/tcds/A-669))

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