# STC SA1989WE

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Safe Flight Instrument Corp, United States
- Description: Installation of United Control approach speed system, computer P/N 965-0158-001.
- Status date: August 26, 1970
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS 2A15](https://openairdocs.org/tcds/2A15)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/F2B0B42485BFA85885256CC10083D3CB.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA1989WE

## ADs that name it (0)

None.

## Approved models (1)

- Lockheed Aircraft Corporation 1329-23E ([TCDS 2A15](https://openairdocs.org/tcds/2A15))

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