STC SA2982WE

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number: SA2982WE This certificule, inued he Northwest Airlines, InC. 2700 Lone Oak Parkway Eagan, MN 55124 Part 4b f the CiVil Air Regulalions: (See T.C. Data Sheet AGWE) Original Product - Ippeterlificate. Vunter: AGWE Make: McDonnell Douglas Model: DC-9-14, -15, -15F, -31, -32 Modification 1or2 alley, Hughes Airwest P/N RW2530051 or Nordskog P/N 645A, per Hughes Airwest Master Drawing List No. RW2530064.

timiture andfunditune: The approval of this change in type design applies basically to above listed DC-9 airplanes only. This approval should not be extended to other aircraft of this model on which other previously approved modifications are incorporated, unless it is determined that 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 distribution such as an increase in the fixed disposable weight in the fuselage

Intest applicati» November 11, 1974 Date Reissued: October 13, 1982 November 14, 1986 Jal fismance January 27, 1975 Date Amended:

¡EDERAL AVIATION Begslim shen of the Filministrater N. F. Horn (Signature) TOMINISTRAIO Manager, Chicago Aircraft Certification Office, ACE-115C, Central Region, FAA (Title)

47.