Airworthiness directives › 99-20-06
AD 99-20-06 Airworthiness Directives; Airbus Industrie Model A320 Series Airplanes
Models named: A320 series. Read the applicability below — it usually turns on serial or part numbers too.
Applicability*9
Model A320 series airplanes, certificated in any category; except those airplanes on which Airbus Industrie Modification 27728 or 27189 has been installed in production, or on which Airbus Industrie Service Bulletin A320-29-1086 has been accomplished. Note 1: This AD applies to each airplane identified in the preceding applicability provision, regardless of whether it has been otherwise 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 (b) 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 malfunction of the low pressure non-return valve in the airborne ground check module (AGCM) of the ram air turbine (RAT), which could result in loss of the blue hydraulic system, and consequent loss of certain flight control and electrical systems, accomplish the following: Replacement (a) Within 12 months after the effective date of this AD, replace the disc valve and spring in the low pressure non-return valve in the AGCM with a new poppet, and re-identify the AGCM name plate, in accordance with Airbus Industrie Service Bulletin A320-29- 1086, dated October 19, 1998, or Revision 01, dated March 9, 1999; and Sundstrand Service Bulletin ERPS13GCM-29-3, dated June 24, 1998. Alternative Methods of Compliance (b) 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 2: Information concerning the existence of approved alternative methods of compliance with this AD, if any, may be [[Page 51688]] obtained from the International Branch, ANM-116. Special Flight Permits (c) 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 (d) The actions shall be done in accordance with Airbus Industrie Service Bulletin A320-29-1086, dated October 19, 1998, or Airbus Industrie Service Bulletin A320-29-1086, Revision 01, dated March 9, 1999; and Sundstrand Service Bulletin ERPS13GCM-29-3, dated June 24, 1998. 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 of the Airbus Industrie service bulletin may be obtained from Airbus Industrie, 1 Rond Point Maurice Bellonte, 31707 Blagnac Cedex, France. Copies of the Sundstrand service bulletin may be obtained from Sundstrand Aerospace, 4747 Harrison Avenue, P.O. Box 7002, Rockford, Illinois 61125-7002. 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. Note 3: The subject of this AD is addressed in French airworthiness directive 98-537-124(B), dated December 30, 1998. (e) This amendment becomes effective on October 29, 1999. Issued in Renton, Washington, on September 17, 1999. D.L. Riggin, Acting Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. 99-24846 Filed 9-23-99; 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