STC SA1571WE

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number: SA1571WE This certificate issued to: Northwest Airlines, INC. 2700 Lone Oak Parkway Eagan, MN 55124 Certifies that the change in the type design for the fillewing preduct with the linilations and conditions thorpur us specified hereon meets the virenthiness requirements ef Purt 25 / the Federal Aviation Regulations Original Product -Type Bertificate Number: 7A1 Make: Fairchild Mertel: F- 27 Description of Type Design Change:

Relocation of Fairchild Model F-542 Flight Data Recorder in accordance with West Coast Airlines Maintenance Engineering Order No. 7-31-20-2, "NC" revision and drawing 7-31-20-2, "NC" revision.

This approval should not be extended to other specific aircraft 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 previously approved modifications will introduce no adverse effect upon the airworthiness of that aircraft.

Date of Application: November 6, 1967 Date Reissued: October 13, 1982 Date of Issuance: January 8, 1968 Date Amended: November 14, 1986 FEDERAI AVIATION hu dive to ethe bla is radar W. F. Aorn (Signature ) TONIN STRAITO Chicago Aircraft Certification Office, ACE-115C, Central Region, FAA (Title)