# STC SA4-214

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Transocean Air Lines, United States
- Description: Two Stewart-Warner 940-B heaters.
- Status date: January 1, 1960
- Product: Aircraft, Small Multi-Engine
- Certification basis: Part 21
- Data sheets: TCDS 2-577
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/190C79C04BC46B1A862570CE0072FF75.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA4-214

## ADs that name it (0)

None.

## Approved models (1)

- Douglas Aircraft Co. Inc. Army B-18 Series (TCDS 2-577)

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