# STC SA3767WE

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Thrush Aircraft Inc., United States
- Description: Installation of 500 gallon fiberglass hopper and relocated oil cooler in accordance with FAA sealed Serv-Aero Engineering, Inc. Master Drawing List No. MDL 83178, dated October 26, 1978, or later FAA approved revision.

P & W PT6A-34 engine installed per STC SA3238WE and FAA approved Serv-Aero Airplane Flight Manual dated October 26, 1978, are required with this installation.  (S2R RESTRICTED CATEGORY)
- Applied: April 11, 1978
- Status date: July 30, 2003
- 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/5A9BFEFC39E0BD1686256DAA0061D4BD.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA3767WE

## ADs that name it (0)

None.

## Approved models (1)

- Ayres Corporation S-2R ([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.