STC ST10693SC

Number ST10693SC This Certificate issued to L-3 Communications Integrated Systems, L.P.

10001 Jack Finney Blvd.

Greenville, TX 75402 Part 25 of the Federal Aviation Regulations.

Original Product Type Certificate Number: A20WE *SEE PAGE 3 Make : Boeing Model : 747-2G4B Description of Type Design Change: Replacement of the Mission Communications System (MCS) in accordance with (1) L-3 Communications Integrated Systems, L.P. Sealed Drawing List SDL 18110-1 Revision C dated 08 March 2012, or later FAA/ODA approved revisions.

Limitations and Conditions: This installation should not be incorporated in any aircraft unless it is determined that the interrelationship between this installation and any previously approved configuration will not introduce any adverse effect upon the airworthiness of the aircraft.

(Limitations and Conditions continued on page 3 of 3)

Date of application : 25 March 2009 Date reissued : 06 Nov 2012, 11 Feb 2013 Date of issuance : 27 January 2012 Date amended : (1) 08 Mar 12 By direction of the Administrator

James Threlfall, Jr ( Signature) ODA-750173-SW Administrator

(Title)

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):

Signature of grantor (In ink):

Number ST10693SC Date of Reissuance: 11 February 2013

Limitations and Conditions: (Continued)

1. Instructions for Continued Airworthiness (ICA), L-3 Communications Integrated Systems, Greenville Document No. G18110.28.08 Revision NC, dated 29 April 2011, or later FAA accepted revision must be made available to the operator at the time of installation.

2. 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.

3. Certain components included in the type design of this Supplemental Type Certificate (STC) are Government Furnished Equipment (GFE) and commercial spares are not available. Aircraft modified in accordance with this STC and equipped with GFE may be operated for official use only.

4. Boeing STC ST00071MC must be installed prior to installation of this STC.

5. Instructions for Continued Airworthiness (ICA), L-3 Communications Integrated Systems, Greenville Document No. G18222.28.08 Revision NC, dated 17 February 2012, or later FAA accepted revision must be made available to the operator at the time of installation.

Certification Basis:

Based on 14 CFR §§ 21.115 and 21.101, the certification basis for the Boeing 747-2G4B aircraft is as follows:

a. The type certification basis for 747-2G4B series airplanes is shown on TCDS A20WE for parts not changed or not affected by the change.

b. The certification basis for parts changed or affected by the change since the reference date of application, 25 March 2009, is as shown in TCDS A20WE with the exception that 25.1529 is at amendment 54.

Additionally, 14 CFR part 25.981 (a)(3) amendment 102 electrical/electronic aspects has been added as part of the certification basis for this modification.

--------------------------------------------------END-----------------------------------------------