STC SA2804WE

FAA Form 8110-2(10-68) Page 1 of 2 Number SA2804WE This Certificate issued to Northrop Grumman Systems Corporation 21240 Burbank Blvd.

Woodland Hills, CA 91367-6675

Part 4b of the Civil Air Regulations.

(See Type Certificate Data Sheet No. 4A25) Original Product Type Certificate Number :

4A25

McDonnell Douglas

DC-8-61 Description of T ype Design Change : Installation of dual three Litton LTN-51 or LTN -72 Inertial Navigation System in accordance with Litton Top Installation Drawing No. 678278-13 and in accordance with Litton Systems Supplementary Revisions to the FAA Airplane Flight Manual No. DAC-33161, dated March 7, 1974.

Limitations and Conditions: The approval of this change in type design applies basically to Model DC-8-61 airplanes only. This approval should not be extended to other aircraft of these models on which other previously approved modifications are incorporated unless it is determined by the installer that the interrelationship between this change and any of those other previously approved modifications will introduce no adverse effect upon the airworthiness of that aircraft. A copy of this certificate must be maintained as part of the permanent records for the modified aircraft. If the holder agrees to permit another person to use this certificate to alter the product, the holder shall give the other person writte n evidence of that permission.

Date of application: January 8, 1974

Date of issuance: March 7, 1974

Date reissued: April 12, 2016

(Signature) Supervisor, Technical & Administrative Support Staff Los Angeles Aircraft Certification Office (Title)

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