# STC SA2842SW

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Signature Flight Support Corporation, United States
- Description: Installation of Dual Sperry SPZ-500 flight director computers with Collins FD-109Z indicators.
- Applied: December 28, 1977
- Status date: August 31, 2000
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A12EA](https://openairdocs.org/tcds/A12EA)
- Certificate PDF: https://openairdocs.org/files/sha256/46/15/46154e9f0068cb52e573c63227cfd6e4f43dc3769292f1b25e014fe6f03bb39e
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/B7C553DD16CBE35B86257DA3006A3FE5.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA2842SW

## ADs that name it (0)

None.

## Approved models (1)

- Gulfstream Aerospace Corporation G-1159 ([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.

JHntteb JStatea < J9cpartmcnt of '(Eranspnttalirm - ,3|>freral (Etritftc&te SA2842SW Signature Flight Support Corporation, a Delaware Corporation 7511 Lemmon Avenue, Hangar C Dallas, TX 75209 A12EA Gulf stream G-1159 Civil Air Installation of Dual Sparry SPZ-500 Flight Director Computers with Collins FD-109Z Indicators in accordance with Drawing List 680133 dated 6/21/78, or later FAA approved revision.

FAA Approved Airplane Flight Manual Supplement dated September 1, 1986, is required.

Compatibility of this modification with other previously approved modifications must be determined by installer.

December 28, 1977 01, 1978 ; 12/21/98; 8/31/00 . 3/10/81; 5/11/82 Rev. 2 V i try (Signature) S. Frances Cox Manager, Special Certification Office, Southwest Region

FAA Form &11Q-2C1Q-69) Page 1 of certificate may be tr*njf«rr*d in with FAR 21.17.

TRANSFER ENDORSEMENT Transfer the ownership of Supplemental Type Certificate Number_ to (Name of transferee) (Address of transferee) IWumfcer and street) (City, State, and ZIP coda;

from (Name of grantor)(Print or type) (Address of grantor) (Number £ street) (City, State, and ZIP code) Extent of Authority (if licensing agreement):

Signature of grantor (In ink):

## Every issue (1)

- August 31, 2000: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/46/15/46154e9f0068cb52e573c63227cfd6e4f43dc3769292f1b25e014fe6f03bb39e)

---
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.