Airworthiness directives › 98-02-06
AD 98-02-06 Airworthiness Directives; Boeing 777-200 Series Airplanes
Models named: 777-200 series. Read the applicability below — it usually turns on serial or part numbers too.
Applicability*9
Model 777-200 series airplanes, line positions 1 through 40 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 [[Page 59116]] 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 (c) of this AD. The request should include an assessment of the effect of the modification, alteration, or repair on the unsafe condition addressed by 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 prevent failure of the lock link mechanism to lock the main landing gear (MLG) in the down position, and consequent collapse of the MLG during ground operation, accomplish the following: Restatement of the Requirements of AD 98-02-06 Repetitive Inspections and Corrective Actions (a) Within 30 days after February 9, 1998 (the effective date of AD 98-02-06, amendment 39-10288), perform a visual inspection to determine the presence and condition of the cotter pin and nut of the lock link mechanism on the side struts and drag struts on the left- and right-hand MLG, in accordance with Boeing Alert Service Bulletin 777-32A0015, dated September 4, 1997. If any discrepancy is found, prior to further flight, correct the discrepancy in accordance with the service bulletin. Repeat the inspection thereafter at intervals not to exceed 75 days or 400 flight cycles, whichever occurs first. New Actions Proposed By This AD Optional Terminating Action (b) Replacement of the existing retention bolt, end caps, washer, and nut of the lock link mechanism on the side struts and drag struts on the MLG with a new lock link assembly that incorporates a new bolt, washer, nut, and end-caps, in accordance with Boeing Service Bulletin 777-32-0016, dated January 14, 1999, constitutes terminating action for the requirements of this AD. Alternative Methods of Compliance (c) 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 2: Information concerning the existence of approved alternative methods of compliance with this AD, if any, may be obtained from the Seattle ACO. Special Flight Permits (d) 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. Incorporation by Reference (e) The actions shall be done in accordance with Boeing Alert Service Bulletin 777-32A0015, dated September 4, 1997, or Boeing Service Bulletin 777-32-0016, dated January 14, 1999, as applicable. (1) The incorporation by reference of Boeing Service Bulletin 777-32-0016, dated January 14, 1999, is approved by the Director of the Federal Register in accordance with 5 U.S.C. 552(a) and 1 CFR part 51. (2) The incorporation by reference of Boeing Alert Service Bulletin 777-32A0015, dated September 4, 1997, as listed in the regulations was approved previously by the Director of the Federal Register as of February 9, 1997 (63 FR 3458, January 23, 1998). (3) 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. (f) This amendment becomes effective on December 7, 1999. Issued in Renton, Washington, on October 22, 1999. D.L. Riggin, Acting Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. 99-28247 Filed 11-1-99; 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