# STC SA1639WE

- Type: Supplemental type certificate
- Status: Current, Surrendered
- Holder: Flying Tiger Line Inc, United States
- Description: Replacement of any of three original 40 KVA alternators with Westinghouse 40 KVA system consisting of alternator P/N 976J843-1 and regulator P/N 915F363-1.
- Status date: April 14, 2008
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS 1A20](https://openairdocs.org/tcds/1A20)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/F0AAAB1BAF6560DB8625742E006041C0.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA1639WE

## ADs that name it (0)

None.

## Approved models (1)

- Bombardier Inc. CL-44D4 ([TCDS 1A20](https://openairdocs.org/tcds/1A20))

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