# STC SA8729SW-D

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Sierra Industries, Inc, United States
- Description: Installation of Sundstrand ground proximity warning system (GPWS) Mark VI.
- Status date: December 1, 1999
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A56EU](https://openairdocs.org/tcds/A56EU)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/89F296302E122F7185256CC20058E8D2.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA8729SW-D

## ADs that name it (0)

None.

## Approved models (1)

- British Aerospace (Scotland) Jetstream Model 3201 ([TCDS A56EU](https://openairdocs.org/tcds/A56EU))

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