STC SA3096WE

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number: SA3096WE This certificate issued to: Northwest Airlines, Inc.

2700 Lone Oak Parkway Eagan, MN 55124 Part 4b of the CIVIT Air Regulalions. dated December 31, 1953 (See T.C. Data Sheet No. 7A1) Original Product - Typebertificate Number: 1A1 Make: Fairchild Mirtel: F-27 Description of Type Design Change:

Installation of Collins Radio Company Model FPC-75 Ground Proximity Warnin‹ System in accordance with FAA sealed Hughes Airwest Master Drawing List No.

RW3450005, Revision D, dated January 24, 1976, or later FAA sealed revision.

Hughes Airwest FAA Approved Airplane Flight Manual Supplement No. 1 dated April 6, 19/6, or later approved revisions to Fairchild Airplane Flight Manual Document 27SP19, is required as part of this installation.

Limitations and Conditions: The approval of this change in type design applies basically to the Fairchild Model F-27 aircraft only. This approval should not be extended to 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. This determination should include consideration of significant changes in weight

rendered, suspended, revked, or a termination date is otherwise established by the dinis tral r of the Federal Aviation Administration .

Date of Application: August 11, 1975 Rule reissued: October 13, 1982, November 14, 1986 Date of Issuance: . October 15, 1975 Date Amended: April 6, 1976

EDERAL MIATION

w. F. Morn (Signuture ) * MINISTRATO Managér, Chicago Aircraft Certification Office, ACE-115C, Central Region, FAA (Title)