Installation of noise attenuation equipment in either or both engine nacelles. (DC-9-10 SERIES w/P&W JT8D-7, -9, or -11 engines)
Please contact modification supplier for further details.
STC Status: Surrendered
STC Date: 11-10-1987
Responsible Office: Chicago Aircraft Certification Office (ACE-115C), Tel: (847) 294-7358
McDonnell Douglas Corporation