2000-23-05: Landing Gear Brake Accumulators

2000-23-05 BRITISH AEROSPACE AIRBUS LIMITED (Formerly British Aerospace Commercial Aircraft Limited, British Aerospace Aircraft Group): Amendment 39-11975. Docket 2000-NM-113-AD. Applicability: All Model BAC 1-11 401/AK and 410/AQ airplanes, 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 (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 loss of hydraulic pressure and possible structural damage to the airplane due to failure of the landing gear brake accumulator, accomplish the following: Replacement (a) Within 10 months after the effective date of this AD, replace any Parker landing gear brake accumulator having part number (P/N) 1356-653562 with an accumulator having P/N 1356-653562M2, in accordance with British Aerospace Service Bulletin 32-PM6054, dated February 2000. NOTE 2: The British Aerospace service bulletin references Parker Service Bulletin 1356-653562-32-100, dated September 23, 1999, as an additional source of service information for accomplishment of the replacement. Spares (b) As of the effective date of this AD, no Parker landing gear brake accumulator having P/N 1356-653562 shall be installed on any airplane. 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, International Branch, ANM-116, 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, International Branch, ANM-116. NOTE 3: Information concerning the existence of approved alternative methods of compliance with this AD, if any, may be obtained from the International Branch, ANM-116. 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 replacement shall be done in accordance with British Aerospace Service Bulletin 32-PM6054, dated February 2000. 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 British Aerospace, Service Support, Airbus Limited, P.O. Box 77, Bristol BS99 7AR, England. 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. Effective Date (f) This amendment becomes effective on December 19, 2000.