STC SA1946NW-D

This Certificate issued to United Air Lines, Inc.

600 Jefferson Street Houston, Texas 77002

Part 4b of the Civil Air Regulations.

(See Type Certificate Data Sheet 4A25.)

Original Product Type Certificate Number : 4A25 Make: Boeing Model:

DC-8-71 Description of Type Design Change : Dual class seat mix change – incr ease coach section capacity from 165 passengers to 174 passengers. Installation in accordance with United Air Lines, DAS-1-WE, Drawing List No.

1946 dated August 16, 1984, or later FAA approved revisions.

Limitations and Conditions : The approval of this change in type d esign applies basically to DC-8-71. This approval should not be extended to other aircraft of th is model on which other previ ously approved modifications are incorporated unless it is determined by the installer th at the interrelationship betwee n this change and any of those other previously approved modifications will intr oduce no adverse effect upon the airworthiness of that aircraft. This 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 person to use this certificate to alter the product, the holder shall give the other person written evidence of that permission.

Date of application : July 24, 1984

Date of issuance : August 10, 1984

Date reissued : November 30, 2011

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

Transfer the ownership of Supplemental Type Certificate Number

to (Name of transferee)

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from (Name of grantor) (Print or type)

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Signature of grantor (In ink):

U.S. GPO 1987-763-28