# STC SA4-56

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Met-Co-Aire, United States
- Description: 13-gallon auxiliary fuel system.
- Status date: January 1, 1960
- Product: Aircraft, Single-Engine
- Certification basis: Part 21
- Data sheets: [TCDS 5A6](https://openairdocs.org/tcds/5A6)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/C50B06370DBA1D0C862570D0007BAB52.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA4-56

## ADs that name it (0)

None.

## Approved models (1)

- The Cessna Aircraft Company 180 Series ([TCDS 5A6](https://openairdocs.org/tcds/5A6))

---
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.