STC SA2-1137

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number: SA2-1137 This certificate issued to: Sierra Industries, Inc., a Texas Corporation Garner Field Road Uvalde, TX 78801 Certifies that the change in the type design for the following product with the limitations and conditions therefor as specified hereen meet's the airvorthiness requirement's of Part 9 of the Civi1 Air Pegulations.

Original Product Typo Certificate Number: LTC-13 Make: Lockheed Aircraft Corp.

Install panoramic cabin windows (left and right) in accordance with HAI Drawing List SD507000-2 dated March 14, 1961, (FAA dated 12/6/61).

1. This modification is eligible on Lockheed Model PV-1, Serial No. 5694, Registration No. N208S only.

2. Structural modification per STC SA2-455 required.

Date of Application: March 27, 1961 Date Reissued: December 1, 1999 Date of Issuance: December 06, 1961 Date Amended: May 8, 1967 Revision 3 FEDERAL AVIATION By Direction of the Administrator Michele MOuster (Signature) Michele M. Owsley, Manager TOMNISTRATIO Airplane 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 21P code ) from (Name of grantor) (Print or type) _ (Address of grantor) (Number and street) (City, State, and 2IP code) Extent of Authority (if licensing agreement): - Date of Transfer:

Signature of grantor (In ink):

FAA AC 69-5536