# STC SA273SW

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Signature Flight Support Corporation, United States
- Description: Installation of cockpit seats.
- Applied: August 23, 1963
- 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/sha256/94/81/948115356ab2dd0a9509656c7f339400ba78c081a055e176ec74c7ff62792377
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/11A2694DBC92E04C86257D9A0071321E.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA273SW

## 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 5A2735W This certificate issued to: Signature Flight Support Corporation, a Delaware Corporation 7511 Lemmon Avenue, Hangar C Dallas, TX 75209 Purt 4 a of the Civil Air Regulations Original Product Type Certificate Number: 723 Make: Lockheed Model: 18 Description of Type Design Change:

Installation of cockpit seats in accordance with data listed on Aerodyne Engineering Corp. Drawing List titled "Cockpit Seat Installation - Dalaero" dated 8/22/63, or later FAA approved revision.

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

Date of Application: August 23, 1963 Date Reissued: 9/4/92; 12/21/98; 8/31/00 Date of Issuance: September 30, 1963 Date Amended: February 25, 1982 Rev. 6 FEDERAL TOMINISTRATO AVIATION fos. Frances cox Manager, Special Certification Office, GuayB Roach By Direction of the Administrator Southwest Region (Signature) (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 & 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/sha256/94/81/948115356ab2dd0a9509656c7f339400ba78c081a055e176ec74c7ff62792377)

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