# STC SA2-249

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Signature Flight Support Corporation, United States
- Description: Alter cabin windows on R.H. side of fuselage.
- Applied: April 10, 1957
- 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/sha256/4c/b6/4cb6ef866c246022cc5c0675e11d37ff2be9309590fab7c30f115d080395d6cd
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/107C43E29625204785256CC10083D463.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA2-249

## 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 572-249 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 therofor as specified hereon meets the airoorthiness requirement's of Part Aa of the CiviI Air Poegulations.

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

Alter cabin windows on R.H. side of fuselage as shown on EAS Dwg. No. 342539, Sheets 1 through 11 Change "A" dated 4/2/57, or Change "B" dated 1/19/59 Sheets 1 through 7, or later FAA approved revision.

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

Date of Application: Apri1 10, 1957 Date of Issuance: August 09, 1957

TOMNISTRATOD Date rested: 6/15/92; 12/21/98; 8/31/00 Date Amended: June 30, 1982 Rev. 3 By Direction of the Administrator 02 S. Frances Cox Manager, Special Certification Office, Southwest Region (Title)

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/sha256/4c/b6/4cb6ef866c246022cc5c0675e11d37ff2be9309590fab7c30f115d080395d6cd)

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