# STC SA2-517

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Signature Flight Support Corporation, United States
- Description: Installation of cockpit seats.
- Applied: March 10, 1958
- Status date: August 31, 2000
- Product: Aircraft, Large Airplane
- Certification basis: Part 21
- Data sheets: [TCDS A-723](https://openairdocs.org/tcds/A-723)
- Certificate PDF: https://openairdocs.org/files/sha256/53/96/539638e176f3843ea1e5d5417a7d1bfbceea2ec464814a245fe4808a18792f29
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/3980E6B534CA483585256CC10083D49F.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA2-517

## ADs that name it (0)

None.

## Approved models (1)

- Lockheed Martin Aeronautics Company 18 ([TCDS A-723](https://openairdocs.org/tcds/A-723))

## What the certificate says

This is OCR from the scanned FAA certificate. OCR can misread letters and numbers.

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number: SA2-517 This certificate issued to: Signature Flight Support Corporation, a Delaware Corporation 7511 Lemmon Avenue, Hangar C Dallas, TX 75209 Certifies that the change in the type design for the following product with the limitations and conditions therefor as specified hereon meets the aimoorthiness requirement's of Pant 4a of the Civil Ait Poegulations.

Original Product Type Certificato Number : 723 Make: Lockheed Model: 18 Description of Type Design Change:

Installation of Cockpit Seats in accordance with drawings called out on DAS Drawing List titled "Installation - Cockpit Seats" Revision 1 dated March 26, 1963, or later FAA approved revision.

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

8 FEDERAL AVLATION By Direction of the Administrator foR-s. Frances Cox TOMINISTRATO Manager, Special Certification Office, Southwest Region (Title)

FAA Form B110-2(10-68) Page 1 of 2

TRANSFER ENDORSEMENT Transfer the ownership of Supplemental Type Certificate Number to (Name of transferee) (Address of transferee) (Number and street ) (City, State, and ZIP code ) from (Name of grantor) (Print or type) (Address of grantor) (Number and street) (City, State, and ZIP code) Extent of Authority (if licensing agreement): - Date of Transfer:

Signature of grantor (In ink): - FAA AC 69-5536

## Every issue (1)

- August 31, 2000: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/53/96/539638e176f3843ea1e5d5417a7d1bfbceea2ec464814a245fe4808a18792f29)

---
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.