# STC SA1937WE

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Heath Tecna Corporation, United States
- Description: Installation of under-seat baggage restraint system. (720-023B) (707-121B)
- Status date: January 6, 1971
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS 4A21](https://openairdocs.org/tcds/4A21), [TCDS 4A28](https://openairdocs.org/tcds/4A28)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/EB35DD0B226925BF85256CC10083D304.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA1937WE

## ADs that name it (0)

None.

## Approved models (2)

- The Boeing Company 707 ([TCDS 4A21](https://openairdocs.org/tcds/4A21))
- The Boeing Company 720 ([TCDS 4A28](https://openairdocs.org/tcds/4A28))

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