# STC ST00072WI

- Type: Supplemental type certificate
- Status: Current, Amended
- Holder: Duncan Aviation, Inc, United States
- Description: Installation of a Sundstrand Mark VII ground proximity warning system.
- Applied: April 30, 1993
- Status date: August 2, 1994
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A12EA](https://openairdocs.org/tcds/A12EA)
- Certificate PDF: https://openairdocs.org/files/sha256/0a/2c/0a2c284f6f62842eeaf8027474ce690b544e2d2095f24049da4677b599894664
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/8B11B666DE6D05DA862577830044809F.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/ST00072WI

## ADs that name it (0)

None.

## Approved models (3)

- Gulfstream Aerospace Corporation G-1159 ([TCDS A12EA](https://openairdocs.org/tcds/A12EA))
- Gulfstream Aerospace Corporation G-1159A ([TCDS A12EA](https://openairdocs.org/tcds/A12EA))
- Gulfstream Aerospace Corporation G-1159B ([TCDS A12EA](https://openairdocs.org/tcds/A12EA))

## What the certificate says

The certificate is a scan without a text layer; open the PDF to read it.

## Every issue (1)

- August 2, 1994: Amended, Current. [certificate](https://openairdocs.org/files/sha256/0a/2c/0a2c284f6f62842eeaf8027474ce690b544e2d2095f24049da4677b599894664)

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.