AD 2006-05-10 Airworthiness Directives; BAE Systems (Operations) Limited Model BAe 146 and Model Avro 146-RJ Airplanes

Models named: BAe 146-100A, -200A, -300A series, Avro 146-RJ70A, 146-RJ85A, 146-RJ100A. 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, and Model Avro 146-RJ70A, 146-RJ85A, and 146-RJ100A airplanes; certificated in any category; as identified in BAE Systems (Operations) Limited Inspection Service Bulletin ISB.52-113, Revision 1, dated February 11, 2005.

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/Corrective Action (f) At the applicable time specified in paragraph (f)(1) or (f)(2) of this AD: Perform a one-time detailed inspection for corrosion of the hinge bracket assembly of the left and right MLG doors by doing all the applicable actions in accordance with the Accomplishment Instructions of BAE Systems (Operations) Limited Inspection Service Bulletin ISB.52-113, Revision 1, dated February 11, 2005. Perform any applicable corrective action before further flight in accordance with the service bulletin. If no corrosion is found, before further flight, apply protective treatment in accordance with the service bulletin. (1) For airplanes on which the date of issuance of the original standard airworthiness certificate or the date of issuance of the original export certificate of airworthiness is on or before February 28, 1991: Within 192 months since the date of issuance of the original standard airworthiness certificate or the date of issuance of the original export certificate of airworthiness, or within 12 months after the effective date of this AD, whichever is later. (2) For airplanes on which the date of issuance of the original standard airworthiness certificate or the date of issuance of the original export certificate of airworthiness is after February 28, 1991: Within 24 months after the effective date of this AD. Note 1: For the purposes of this AD, a detailed inspection is: “An intensive examination of a specific item, installation, or assembly to detect damage, failure, or irregularity. Available lighting is normally supplemented with a direct source of good lighting at an intensity deemed appropriate. Inspection aids such as mirror, magnifying lenses, etc., may be necessary. Surface cleaning and elaborate procedures may be required.” Inspections Accomplished According to Previous Issue of Service Bulletin (g) Inspections accomplished before the effective date of this AD in accordance with BAE Systems (Operations) Limited Inspection Service Bulletin ISB.52-113, dated February 2, 2001, are considered acceptable for compliance with the corresponding action specified in this AD. Parts Installation (h) As of the effective date of this AD, no person may install, on any airplane, a hinge bracket assembly of the left and right MLG doors, unless it has been inspected (and any corrective actions done) according to BAE Systems (Operations) Limited Inspection Service Bulletin ISB.52-113, Revision 1, dated February 11, 2005. No Reporting Required (i) Although BAE Systems (Operations) Limited Inspection Service Bulletin ISB.52-113, Revision 1, dated February 11, 2005, referenced in this AD, specifies to submit certain information to the manufacturer, this AD does not include that requirement. Alternative Methods of Compliance (AMOCs) (j)(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 (k) British airworthiness directive G-2005-0017, dated July 6, 2005, also addresses the subject of this AD. Material Incorporated by Reference (l) You must use BAE Systems (Operations) Limited Inspection Service Bulletin ISB.52-113, Revision 1, dated February 11, 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 this document 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 February 24, 2006. Ali Bahrami, Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. 06-2141 Filed 3-8-06; 8:45 am] BILLING CODE 4910-13-P

This AD results from in-service reports of hinge bracket failures on the main landing gear (MLG) doors. We are issuing this AD to prevent failure of the hinge bracket on the MLG door, which could result in separation of the door, consequent structural damage to the airplane, and possible injury to people on the ground.