# STC SA523CE

- Type: Supplemental type certificate
- Status: Current, Amended
- Holder: Trans World Airlines Inc, United States
- Description: Installation of single SCAT system. (707-331C)
- Status date: July 31, 1975
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS 4A26](https://openairdocs.org/tcds/4A26)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/B7C2DC9EEB81DBE285256CC2001227C2.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA523CE

## ADs that name it (0)

None.

## Approved models (1)

- The Boeing Company 707 ([TCDS 4A26](https://openairdocs.org/tcds/4A26))

---
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.