AD 88-01-05 R1

88-01-05 R1 MCDONNELL DOUGLAS: Amendment 39-5816 as amended by Amendment 39-6015. Applies to McDonnell Douglas Model DC-10-10, -10F, -15, -30, -30F, -40, and KC-10A (Military) series airplanes, fuselage numbers 1 through 400, certificated in any category.

Compliance required as indicated unless previously accomplished.

To prevent inboard and outboard flap vane separation due to loose, broken or corroded primary (aft) attach bolts or nuts, accomplish the following:

A. Within 15 days after the effective date of Amendment 39-5816 (January 20, 1988), unless accomplished since June 6, 1987, inspect the flap vane primary (aft) attach bolts and nuts in accordance with the Phase I, Accomplishment Instructions, of McDonnell Douglas DC-10 Alert Service Bulletin No. A57-107, dated June 22, 1987.

B. Within 60 days after the effective date of this amendment, unless accomplished since June 6, 1987, and thereafter at intervals not to exceed two years, inspect the flap vane primary (aft) attach bolts and nuts in accordance with the Phase II, Accomplishment Instructions, of McDonnell Douglas DC-10 Alert Service Bulletin No. A57-107, Revision 1, dated June 26, 1987, or Revision 2, dated September 3, 1987.

C. If cracked, broken, or corroded bolts or nuts are found, during the inspections required by paragraphs A. or B., above, before further flight, replace with airworthy bolts and nuts, in accordance with Phase I or II, Accomplishment Instructions of McDonnell Douglas DC-10 Alert Service Bulletin No. A57-107, Revision 1, dated June 26, 1987, or Revision 2, dated September 3, 1987.

D. Replacement of primary (aft) inboard and outboard flap vane attach bolts and nuts with Inconel bolts and A286 CRES nuts, in accordance with Phase III, Accomplishment Instructions of McDonnell Douglas DC-10 Alert Service Bulletin No. A57-107, Revision 1, dated June 26, 1987, or Revision 2, dated September 3, 1987, constitutes terminating action for the repetitive inspection requirement of this AD.

E. An alternate means of compliance or adjustment of the compliance time, which provides an acceptable level of safety, may be used when approved by the Manager, Los Angeles Aircraft Certification Office, FAA, Northwest Mountain Region.

NOTE: The request should be forwarded through an FAA Principal Maintenance Inspector (PMI), who may add any comments and then send it to the Manager, Los Angeles Aircraft Certification Office, FAA, Northwest Mountain Region.

F. Special flight permits may be issued in accordance with FAR 21.197 and 21.199 to operate airplanes to a base in order to comply with the requirements of this AD.

All persons affected by this directive who have not already received the appropriate service information from the manufacturer may obtain copies upon request to McDonnell Douglas Corporation, 3855 Lakewood Boulevard, Long Beach, California 90846, Attention: Director of Publications, C1-L00 (54-60). These documents maybe examined at the FAA, Northwest Mountain Region, 17900 Pacific Highway South, Seattle, Washington or the Los Angeles Aircraft Certification Office, 3229 East Spring Street, Long Beach, California.

This Amendment, 39-6015, revises AD 88-01-05, Amendment 39-5816, effective January 20, 1988.

This Amendment, 39-6015, becomes effective October 21, 1988.