# STC SA1873CE

- Type: Supplemental type certificate
- Status: Current, Amended
- Holder: Petersen Aviation Inc, United States
- Description: Operation of airplane on unleaded automotive gasoline.
- Status date: July 26, 1983
- Product: Aircraft, Single-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A4SW](https://openairdocs.org/tcds/A4SW)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/2EE8CE7A9F0AF38F85256CC10083D1F1.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA1873CE

## ADs that name it (0)

None.

## Approved models (3)

- Ayres Corporation 600 S2D ([TCDS A4SW](https://openairdocs.org/tcds/A4SW))
- Ayres Corporation S2R ([TCDS A4SW](https://openairdocs.org/tcds/A4SW))
- Ayres Corporation S2R-R1340 ([TCDS A4SW](https://openairdocs.org/tcds/A4SW))

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.