# STC SA726CE

- Type: Supplemental type certificate
- Status: Current, Amended
- Holder: Trans World Airlines Inc, United States
- Description: Installation of Kollsman altitude alerting system. (707-338C)
- Status date: July 1, 1973
- 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/72BF13355341864D85256CC20056A268.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA726CE

## ADs that name it (0)

None.

## Approved models (5)

- The Boeing Company 707 ([TCDS 4A26](https://openairdocs.org/tcds/4A26))
- The Boeing Company 707-300 ([TCDS 4A26](https://openairdocs.org/tcds/4A26))
- The Boeing Company 707-300B ([TCDS 4A26](https://openairdocs.org/tcds/4A26))
- The Boeing Company 707-300C ([TCDS 4A26](https://openairdocs.org/tcds/4A26))
- The Boeing Company 707-400 Series ([TCDS 4A26](https://openairdocs.org/tcds/4A26))

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