Airworthiness Directive · Amendment 39-9167 · McDonnell Douglas Corporation Airplanes
McDonnell Douglas Corporation Airplanes
Superseded. A later AD replaced this one: AD 95-23-07. Comply with the one in force.
This AD applies to McDonnell Douglas Corporation MD-11 Series (all).
The models as the FAA's AD index lists them. The serial ranges, installed parts and exceptions are in the AD itself: read it at the FAA.
This amendment supersedes an existing airworthiness directive (AD), applicable to certain McDonnell Douglas Model MD-11 series airplanes, that currently requires inspection to detect cracking of the outboard and inboard surfaces of the upper spar angles of certain wing pylons, and repair of any cracked upper spar angles. This amendment requires repetitive inspections to detect cracking of the upper spar angles, and revision of the applicability to exclude an airplane and to include certain other airplanes. This amendment is prompted by an additional report of cracking of the upper inboard spar cap. The actions specified in this AD are intended to prevent reduced structural integrity of the airplane due to cracking in the subject areas.\n\n\tThe incorporation by reference of McDonnell Douglas Alert Service Bulletin MD11-54A049, Revision 1, dated February 7, 1995, as listed in the regulations, is approved by the Director of the Federal Register as of March 17, 1995.\n\n\tThe incorporation by reference of McDonnell Douglas MD-11 Alert Service Bulletin A54-49, dated December 2, 1994, as listed in the regulations, was approved previously by the Director of the Federal Register as of January 12, 1995 (59 FR 66669, December 28, 1994).\n\n\tComments for inclusion in the Rules Docket must be received on or before May 1, 1995.
