Airworthiness directives › 98-16-07
AD 98-16-07 Airworthiness Directives; Boeing Model 767 Series Airplanes
Models named: 767 series. Read the applicability below — it usually turns on serial or part numbers too.
Applicability*9
Model 767 series airplanes having line positions 1 through 562 inclusive, certificated in any category. Note 1: This AD applies to each airplane identified in the preceding applicability provision, regardless of whether it has been modified, altered, or repaired in the area subject to the requirements of this AD. For airplanes that have been modified, altered, or repaired so that the performance of the requirements of this AD is affected, the owner/operator must request approval for an alternative method of compliance in accordance with paragraph (e) of this AD. The request should include an assessment of the effect of the modification, alteration, or repair on the unsafe condition addressed by [[Page 40816]] this AD; and, if the unsafe condition has not been eliminated, the request should include specific proposed actions to address it.
Compliance
Required as indicated, unless accomplished previously. To detect and correct corrosion or plating cracks of the pin assemblies in the front trunnion support of the main landing gear (MLG), which could cause these assemblies to break and result in collapse of the MLG, accomplish the following: (a) Perform a close visual inspection to detect corrosion or plating cracks of each 4330M Steel pin assembly in the forward trunnion support of the MLG, in accordance with Boeing Alert Service Bulletin 767-57A0047, Revision 1, dated May 9, 1996, at the later of the times specified in paragraphs (a)(1) and (a)(2) of this AD. (1) Within 4 years since date of manufacture of the airplane, or 4 years since the last overhaul of the MLG. Or (2) Within 18 months after the effective date of this AD. (b) If no corrosion or crack is detected, repeat the close visual inspection thereafter at intervals not to exceed 48 months. (c) If any corrosion or crack is detected, prior to further flight, replace it with a new pin assembly made from 15-5PH CRES with Class 3 chrome plating, in accordance with Boeing Alert Service Bulletin 767-57A0047, Revision 1, dated May 9, 1996. (d) Accomplishment of replacement of a 4330M Steel pin assembly with a new pin assembly made from 15-5PH CRES with Class 3 chrome plating, in accordance with Boeing Alert Service Bulletin 767- 57A0047, Revision 1, dated May 9, 1996, constitutes terminating action for the inspections required by this AD for that pin location. Note 2: Replacement of a 4330M Steel pin assembly with a new pin assembly made from 15-5PH CRES with Class 3 chrome plating prior to the effective date of this AD, in accordance with Boeing Service Bulletin 767-57A0047, dated January 19, 1995, is considered an acceptable method of compliance with paragraph (d) of this AD for that pin location. (e) An alternative method of compliance or adjustment of the compliance time that provides an acceptable level of safety may be used if approved by the Manager, Seattle Aircraft Certification Office (ACO), FAA, Transport Airplane Directorate. Operators shall submit their requests through an appropriate FAA Principal Maintenance Inspector, who may add comments and then send it to the Manager, Seattle ACO. Note 3: Information concerning the existence of approved alternative methods of compliance with this AD, if any, may be obtained from the Seattle ACO. (f) Special flight permits may be issued in accordance with sections 21.197 and 21.199 of the Federal Aviation Regulations (14 CFR 21.197 and 21.199) to operate the airplane to a location where the requirements of this AD can be accomplished. (g) The inspections and replacement shall be done in accordance with Boeing Alert Service Bulletin 767-57A0047, Revision 1, dated May 9, 1996. This incorporation by reference was approved by the Director of the Federal Register in accordance with 5 U.S.C. 552(a) and 1 CFR part 51. Copies may be obtained from Boeing Commercial Airplane Group, P.O. Box 3707, Seattle, Washington 98124-2207. Copies may be inspected at the FAA, Transport Airplane Directorate, 1601 Lind Avenue, SW., Renton, Washington; or at the Office of the Federal Register, 800 North Capitol Street, NW., suite 700, Washington, DC. (h) This amendment becomes effective on September 4, 1998. Issued in Renton, Washington, on July 24, 1998. S.R. Miller, Acting Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. 98-20340 Filed 7-30-98; 8:45 am] BILLING CODE 4910-13-U
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The directive text above is reproduced from the Federal Register, a work of the United States government and in the public domain. The separation into applicability, compliance and required actions is TrackAD's.*1