# STC SA2-250

- 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: May 1, 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/e8/14/e8143faee1f35d8d392fa5f0d8d102fddd8c1b5e8495d7e5cc6e6c23be083f64
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/54E76DFFC6169EF985256CC10083D464.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA2-250

## 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

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.

JHnttrb ^Stales 0§f lepartmeitt of Scansportaiton - Jjf?heral uppletttettiai Certificate SA2-250 Signature Flight Support Corporation, a Delaware Corporation 7511 Lemmon Avenue, Hangar C Dallas, TX 75209 A a Civil Air 723 Lockheed 18 Alter cabin windows on R.H. side fuselage as shown on EAS Dwg. No. 342543 Sheets 1 through 9 dated April 29, 1957, or EAS Dwg. No. 342543, Sheets 1 through 10 Change "B" dated January 19, 1957, or later FAA approved revision.

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

fvi a&eSr lit, fVfrnfUi m t> .-May 01, 1957 August 09, 1957 ; 12/21/98; 8/31/00 <.'June 30, 1982 Rev. 3 (Signature) S. Frances Cox Manager, Special Certification Office, Southwest Region (TWfe) Any alteration of this e*f tifluate Ja punishable by a fine of not or iaprJiorunent not exceeding 3 years, Or Forn 6110-2(10-66] Page 1 of 2 TrtJs cert iflc*te nay fee Efans In accordance ulth FAR 2J

INSTRUCTIONS Thr iiansfi-r endorsement hcluw may be used 10 notify the appropriaie FAA Regional Office of the transfer of this Supplemental Type Certificate.

The FAA will reissue the emificalr in rhe name of the transferee and forward 11 10 him.

TRANSFER ENDORSEMENT Transfer the ownership of Supplemental Type Certificate Number __ to (Name of transferee) (Address of transferee) (Number and street) (City, Stair, and 7JP mil!

From (Name of grantor) (Print or type) (Address of grantor) (Number and streel} , Slate, and ^IP lod Extent of Authority (if licensing agreement):

Signature of grantor (In ink):

**C FAA AC B'J-S536**

## Every issue (1)

- August 31, 2000: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/e8/14/e8143faee1f35d8d392fa5f0d8d102fddd8c1b5e8495d7e5cc6e6c23be083f64)

---
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.