STC ST10971SC

Part 25 of the Federal Aviation Regulations.

Description of Type Design Change: Installation of interior components in accordance with Comtech Aviation Services, Inc., Drawing List CTDL01005, Revision C, Dated March 4, 2010, or later Federal Aviation Administration (FAA) approved revisions. Airplane Flight Manual Supplement document Number CTAFMS01005, Revision -, dated March 16, 2010 or later FAA approved revision is required.

Limitations and Conditions: The installer must determine whether this design change is compatible with previously approved modifications. If the holder agrees to permit another person to use this certificate to alter the product, the holder shall give the other person written evidence of that permission.

COMTECH Aviation Services, Inc.

3209 Louis Drive Plano, TX 75023 A20WE Make : The Boeing Company Model : 747-400 Date of application: February 18, 2008

Date of issuance: March 19, 2010

( Signature) S. Frances Cox Manager, Special Certification Office Southwest Region

( Title)

FAA Form 8110-2-1(10-69) Page 2 of 3

FAA Form 8110-2-1(10-69) Page 3 of 3

Number ST10971SC Date of Issuance: March 19, 2010

Limitations and Conditions (Continued): This supplemental type certificate (STC) must be installed in conjunction with JAMCO America FAA STC ST01884SE-D, TIMCO Aviation Services FAA STC ST03821AT-D and STG Aerospace, Inc. FAA STC ST02993AT.

This modification may not be installed after August 30, 2010 unless (1) previously approved electrical wiring interconnection system (EWIS) instructions for continued airworthiness (ICA) have been evaluated and determined to be adequate for this installation by the FAA, or (2) revised EWIS ICA have been approved by the FAA Oversight Office. (Refer to 14 CFR § 26.11).

Certificatoin Basis: The certification basis for this modification is in accordance with Type Certificate Data Sheet, A20WE, with the following exceptions:

Regulations at a later amendment than specified in A20WE

25.613 (a) (b) Amdt. 25-72; 25.625 Amdt. 25-72; 25.787 (a) (b) Amdt. 25-51; 25.789 (a) Amdt. 25-46;

25.791 (a) (b) (c) (e) Amdt. 25-72; 25.793 Amdt. 25-51; 25.803 (a) (c) Amdt. 25-72;

25.812 (a)(1) (b)(1)(i)(ii) (c) (d) (e)(1)(2) (i) (j) (l)(1)(2) Amdt. 25-58; 25.820 Amdt. 25-114;

25.851 (a)(1)(4)(5)(6)(7) Amdt. 25-74; 25.853 (a) (c) (d) (e) Amdt. 25-116; 25.869 (a) (4) Amdt. 25-113;

25.981 (a) (b) Amdt. 25-102; 25.1301 (a)(1)(2)(3)(4) Amdt. 25-123; 25.1309 (a) (b) (d) (e) Amdt. 25-123;

25.1353 (a) (c) Amdt. 25-123; 25.1360 Amdt. 25-123; 25.1423 (c) Amdt. 25-123;

25.1431 (a) (c) (d) Amdt. 25-123; 25.1581 Amdt. 25-72; 25.1583 (h) Amdt. 25-105; and

25.1529 Amdt. 25-54 --------------------------------------------------------------------END-------------------------------------------------------------------------------