# STC SA2-73

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Signature Flight Support Corporation, United States
- Description: Installation of shock mounted racks in nose section
- Applied: September 20, 1956
- 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/sha256/65/d2/65d27bcad5c919c71277ad7569504e3cee92cdb329ab04fd1bcc327d88d63bec
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/B847FC938D6D912485256CC10083D4D2.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA2-73

## 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 5A2-73 This certificate issued to: Signature Flight Support Corporation, a Delaware Corporation 7511 Lemmon Avenue, Hangar C Dallas, TX 75209 Part SRA07 of the Civil Air Regulations.

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

Installation of shock mounted racks in nose section according to C. R. Ursell Report No. CU-3.

Data pertaining to this modification are considered inadequate for duplication in other aircraft. This approval is limited to the installation made in Lockheed Model 18, Serial No. 2548 and Serial No. 2588, only.

Date of Application: September 20, 1956 Date Reissued: 6/1/92; 12/21/98; 8/31/00 Date of Issuance: January 24, 1957 Date Amended: July 20, 1982 Rev. 9 FEDERAL AVIATION inistrator (Signature) ful S. Frances Cox TOMINISTRATO 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/sha256/65/d2/65d27bcad5c919c71277ad7569504e3cee92cdb329ab04fd1bcc327d88d63bec)

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