STC SA3593WE-D

600 Jefferson Street Houston, Texas 77002

Part 4b of the Civil Air Regulations. (See Type Certificate Data Sheet 4A25).

4A25

Boeing

DC-8-61 Description of Type Design Change: Seat mix change from 26 F/C and 156 coach passenger configuration to 26 F/C and 164 coach passenger configur ation. Installation is in accordance with United Air Lines DAS-1-WE Drawing List No. 3593 date d September 28, 1979, or later FAA approved revisions..

Limitations and Conditions: The approval of this change in type design applies basically to the DC-8-61 aircraft only. This approval shoul d not be extended to other aircra ft of this model on which other previously approved modifications are incorporated unless it is determined that the interrelationship between this change and any of those other previ ously approved modifications will introduce no adverse effect upon the airworthiness of that aircraft. Th is determination should in clude consideration of significant changes in weight distribution such as an increase in the fixed disposable weight in the fuselage. If the holder agrees to permit another pers on to use this certificate to alter the product, the holder shall give the other person written evidence of that permission.

This certificate and the supporting data, which is the basis for approval, shall remain in effect until surrendered, suspended, revoked or a termination date is otherwise established by the Administrator of the Federal Aviation Administration.

Date of application: September 5, 1979

Date of issuance: January 21, 1980

Date reissued: November 30, 2011

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

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