# STC SA7999SW

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Textron Aviation Inc, United States
- Description: Relocation of the cabin pressurization control unit.
- Applied: September 10, 1990
- Status date: March 13, 2017
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A12EA](https://openairdocs.org/tcds/A12EA)
- Certificate PDF: https://openairdocs.org/files/sha256/55/06/5506a0e030a6ea38df5d9dcb2f80973a97888bdac401d09469063d0efe0ffbfd
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/626F468EE60B4F75862581630057DBB3.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA7999SW

## ADs that name it (0)

None.

## Approved models (1)

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

## What the certificate says

Read from the PDF's text layer, without the form's printed wording; the layout is lost and the order can differ. The PDF is the record.

FAA Form 8110-2 (5/14) Page 1 of

Part of the

Signature

Title SA7999SW Textron Aviation Inc.

One Cessna Boulevard Wichita, KS 67215 25 Federal Aviation Regulations.

Gulfstream G-IV 2 A12EA Relocation of the Cabin Pressurization Control Unit in a Gulfstream G-IV aircraft in accordance with Arkansas Aerospace drawing list number GIV-045, Rev. A3, dated April 13, 1991, or later FAA approved revision.

This installation is approved for airplane serial number 1137 only. Compatibility of this modification with previously installed equipment must be determined by installer.

March 13, 2017 September 10, 1990 April 19, 1991 Mark Fuller STC ODA administrator ODA-100129-CE

FAA Form 8110-2 (5/14) Page 2 of

To (Name and address of transferee)

From (Name and address of grantor)

## Every issue (2)

- March 13, 2017: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/55/06/5506a0e030a6ea38df5d9dcb2f80973a97888bdac401d09469063d0efe0ffbfd)
- April 19, 1991: Issued, Historical. [certificate](https://openairdocs.org/files/sha256/01/10/011064746990bf67cfb7143648283ae125a93f52682f5950d91196fb97e1cfa6)

---
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.