# STC SA1-480

- Type: Supplemental type certificate
- Status: Current, Amended
- Holder: Flight Enterprises Intl Aircraft Svcs Inc., United States
- Description: Smoke detector system in cargo compartments Class B.
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A-763](https://openairdocs.org/tcds/A-763)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/8523D0DE27D6FD4385256CCB0060181E.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA1-480

## ADs that name it (0)

None.

## Approved models (2)

- Lockheed Aircraft Corporation 749-79 (C-121A) ([TCDS A-763](https://openairdocs.org/tcds/A-763))
- Lockheed Aircraft Corporation 749-79 (VC-121B) ([TCDS A-763](https://openairdocs.org/tcds/A-763))

---
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.