AD 2006-20-05 Airworthiness Directives; BAE Systems (Operations) Limited Model BAe 146 Airplanes

Models named: BAe 146-100A, -200A, -300A series. Read the applicability below — it usually turns on serial or part numbers too.

This AD applies to BAE Systems (Operations) Limited Model BAe 146-100A, -200A, and -300A series airplanes, certificated in any category, on which Modification HCM00301A or B has been done, and on which Modification HCM01698A has not been done.

You are responsible for having the actions required by this AD performed within the compliance times specified, unless the actions have already been done. Inspection (f) Inspect, using a dial test indicator, to measure the depth of any chafing or scoring in the skin along the full length of the wing-to-fuselage fairing from forward to aft ends at the point of contact between the seal and fuselage on both sides of the fuselage, and do applicable related investigative/corrective actions in accordance with the Accomplishment Instructions of BAE Systems (Operations) Limited Inspection Service Bulletins ISB.53-005, Revision 2, dated February 16, 2004; and ISB.53-067, Revision 3, dated June 27, 2005; except as required by paragraph (g) of this AD. Do the inspection before the airplane accumulates 1,000 total flight cycles, or within 500 flight cycles after the effective date of this AD, whichever occurs later. Do related investigative/corrective actions and repeat the inspection to measure the chafing/scoring at the times specified in the service bulletins, as applicable, except as required in paragraph (h) of this AD. Exceptions to and Clarification of Service Bulletin Specifications (g) Where BAE Systems (Operations) Limited Inspection Service Bulletins ISB.53-005, Revision 2, dated February 16, 2004; and ISB.53-067, Revision 3, dated June 27, 2005; specify to contact the manufacturer for repair instructions: Before further flight, repair using a method approved by the Manager, International Branch, ANM-116, Transport Airplane Directorate, FAA; the Civil Aviation Authority (or its delegated agent); or the EASA (or its delegated agent). (h) This AD requires corrective actions before further flight, except where corrective actions may be deferred under specific conditions in BAE Systems (Operations) Limited Inspection Service Bulletins ISB.53-005, Revision 2, dated February 16, 2004; and ISB.53-067, Revision 3, dated June 27, 2005. (i) Although BAE Systems (Operations) Limited Inspection Service Bulletins ISB.53-005, Revision 2, dated February 16, 2004; and ISB.53-067, Revision 3, dated June 27, 2005; specify to submit certain information to the manufacturer, this AD does not include that requirement. Credit for Earlier Accomplishment (j) Inspections and applicable investigative and corrective actions done before the effective date of this AD are acceptable for compliance with the requirements of paragraph (f) of this AD if done in accordance with one of the service bulletin versions identified in Table 1 of this AD, as applicable. The repetitive inspection may be done within 4,000 flight cycles after the most recent inspections in accordance with both BAE Systems (Operations) Limited Inspection Service Bulletins ISB.53-005 and ISB-53-067 (any revision level). Table 1.—Credit Service Bulletins BAE Systems (Operations) Limited Inspection Service Bulletin Revision level Date ISB.53-005 Revision 1 April 19, 1985. ISB.53-067 Revision 1 February 16, 1990.   Revision 2 February 16, 2004. Alternative Methods of Compliance (AMOCs) (k)(1) The Manager, International Branch, ANM-116, Transport Airplane Directorate, FAA, has the authority to approve AMOCs for this AD, if requested in accordance with the procedures found in 14 CFR 39.19. (2) Before using any AMOC approved in accordance with § 39.19 on any airplane to which the AMOC applies, notify the appropriate principal inspector in the FAA Flight Standards Certificate Holding District Office. Related Information (l) British airworthiness directive G-2005-0020, dated July 6, 2005, also addresses the subject of this AD. Material Incorporated by Reference (m) You must use BAE Systems (Operations) Limited Inspection Service Bulletin ISB.53-005, Revision 2, dated February 16, 2004; and BAE Systems (Operations) Limited Inspection Service Bulletin ISB.53-067, Revision 3, dated June 27, 2005; to perform the actions that are required by this AD, unless the AD specifies otherwise. The Director of the Federal Register approved the incorporation by reference of these documents in accordance with 5 U.S.C. 552(a) and 1 CFR part 51. Contact British Aerospace Regional Aircraft American Support, 13850 Mclearen Road, Herndon, Virginia 20171, for a copy of this service information. You may review copies at the Docket Management Facility, U.S. Department of Transportation, 400 Seventh Street, SW., Room PL-401, Nassif Building, Washington, DC; on the Internet at http://dms.dot.gov; or at the National Archives and Records Administration (NARA). For information on the availability of this material at the NARA, call (202) 741-6030, or go to http://www.archives.gov/federal_register/code_of_federal_regulations/ibr_locations.html. Issued in Renton, Washington, on September 15, 2006. Kalene C. Yanamura, Acting Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. 06-8231 Filed 9-27-06; 8:45 am] BILLING CODE 4910-13-P

This AD results from a report of chafing along the seal/fuselage contact area under the wing-to-fuselage fairing access panels on both sides of the fuselage. We are issuing this AD to detect and correct such chafing or scoring in this area, which could result in reduced structural integrity of the fuselage.