STC SA2-634

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number 572-634 This certificate issued to: Signature Flight Support Corporation, a Delaware Corporation 7511 Lemmon Avenue, Hangar C Dallas, TX 75209 Part SR407 of the Civil Air Poogulations.

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

Installation of picture windows in accordance with Howard Aero Report No. 29 Revision C dated 2/14/60 or Drawing List No. SD507000-B dated 12/14/62, or later FAA approved revision. This approval covers several alternate picture window installations.

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

Date of Application: August 29, 1958 Date Reissued: 7/10/92; 12/21/98; 8/32/00 Date of Issuance: May 06, 1959 Date Amended: May 28, 1982 Rev. 11 FEDERAL AVIATION By Direction of the Administrator ovie TOMINISTRATO fols. Frances cox Manager, Special Certification Office, 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 and street) ( City, State, and Z1P code) Extent of Authority (if licensing agreement): - Date of Transfer:

Signature of grantor (In ink):

FAA AC 69-5536