AD 2002-23-17 Airworthiness Directives; McDonnell Douglas Model MD-90-30 Airplanes

Models named: MD-90-30. Read the applicability below — it usually turns on serial or part numbers too.

All Model MD-90-30 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 (d) 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.

Required as indicated, unless accomplished previously. Note 2: The FAA recommends that the actions required by this AD be accomplished after the replacement of the metallized polyethyleneteraphthalate (MPET) insulation blankets required by AD 2000-11-01, amendment 39-11749. To prevent electrical arcing and/or heat-damaged wiring due to improper wire installations or maintenance practices, which could result in fire and smoke in various areas of the airplane, accomplish the following: One-Time Detailed Inspections (a) Within 5 years after the effective date of this AD, accomplish the actions specified in paragraphs (a)(1), (a)(2), (a)(3), (a)(4), (a)(5), (a)(6), and (a)(7) of this AD. (1) Do a one-time detailed inspection of all electrical wiring installations in the flight compartment and forward drop ceiling area, according to the Accomplishment Instructions of Boeing Service Bulletin MD90-24-066, excluding Appendix and Evaluation Form, Revision 01, dated February 8, 2001. Note 3: For the purposes of this AD, a detailed inspection is defined as: “An intensive visual examination of a specific structural area, system, installation, or assembly to detect damage, failure, or irregularity. Available lighting is normally supplemented with a direct source of good lighting at intensity deemed appropriate by the inspector. Inspection aids such as mirror, magnifying lenses, etc., may be used. Surface cleaning and elaborate access procedures may be required.” (2) Do a one-time detailed inspection of all electrical wiring installations in the electronic/electrical (E/E) compartment according to the Accomplishment Instructions of Boeing Service Bulletin MD90-24-067, excluding Appendix and Evaluation Form, Revision 01, dated February 8, 2001. (3) Do a one-time detailed inspection of all electrical wiring installations in the forward passenger compartment from stations Y=260.000 to Y=902.000 according to the Accomplishment Instructions of Boeing Service Bulletin MD90-24-068, excluding Appendix and Evaluation Form, Revision 01, dated February 8, 2001. (4) Do a one-time detailed inspection of all electrical wiring installations in the aft passenger compartment from stations Y=902.000 to Y=1395.000 according to the Accomplishment Instructions of Boeing Service Bulletin MD90-24-069, excluding Appendix and Evaluation Form, Revision 01, dated February 8, 2001. (5) Do a one-time detailed inspection of all electrical wiring installations in the forward and mid cargo compartments from stations Y=218.000 to Y=845.000 according to the Accomplishment Instructions of Boeing Service Bulletin MD90-24-070, excluding Appendix and Evaluation Form, Revision 01, dated February 8, 2001. (6) Do a one-time detailed inspection of all electrical wiring installations in the aft cargo compartment from stations Y=1064.000 to Y=1369.000 according to the Accomplishment Instructions of Boeing Service Bulletin MD90-24-071, excluding Appendix and Evaluation Form, Revision 01, dated February 8, 2001. (7) Do a one-time detailed inspection of all electrical wiring installations in the forward accessory compartment from stations Y=41.000 to Y=70.000 according to the Accomplishment Instructions of Boeing Service Bulletin MD90-24-072, excluding Appendix and Evaluation Form, Revision 01, dated February 8, 2001. Corrective Action (b) If any discrepancy is detected during any inspection required by paragraph (a) of this AD: Before further flight, accomplish the applicable corrective action(s) according to the Accomplishment Instructions of the applicable service bulletins listed in paragraphs (b)(1), (b)(2), (b)(3), (b)(4), (b)(5), (b)(6), and (b)(7) of this AD. Corrective actions that may be necessary include repairing cracked, split, or torn wiring insulation; re-attaching nylon (caterpillar) grommets; installing smaller-sized clamps; adjusting, replacing, or tightening sta-straps; repositioning certain wiring or clamps; tightening or securing clamps, terminals, or wire bundles; re-torquing screw terminals of the flag lug bus bar; repairing or replacing certain wiring, terminals, splices, or connectors; installing protective sleeving over wiring; and installing a silicone glass cloth over conduit ends. (1) Boeing Service Bulletin MD90-24-066, excluding Appendix and Evaluation Form, Revision 01, dated February 8, 2001. (2) Boeing Service Bulletin MD90-24-067, excluding Appendix and Evaluation Form, Revision 01, dated February 8, 2001. (3) Boeing Service Bulletin MD90-24-068, excluding Appendix and Evaluation Form, Revision 01, dated February 8, 2001. (4) Boeing Service Bulletin MD90-24-069, excluding Appendix and Evaluation Form, Revision 01, dated February 8, 2001. (5) Boeing Service Bulletin MD90-24-070, excluding Appendix and Evaluation Form, Revision 01, dated February 8, 2001. (6) Boeing Service Bulletin MD90-24-071, excluding Appendix and Evaluation Form, Revision 01, dated February 8, 2001. (7) Boeing Service Bulletin MD90-24-072, excluding Appendix and Evaluation Form, Revision 01, dated February 8, 2001. Note 4: The Appendix of the service bulletins referenced in paragraphs (b)(1), (b)(2), (b)(3), (b)(4), (b)(5), (b)(6), and (b)(7) of this AD contains a form to report inspection findings. This AD does NOT require such reports to be submitted to the FAA. Credit for Previous Accomplishment per Earlier Service Bulletin Version (c) Inspections and corrective actions done before the effective date of this AD according to the Accomplishment Instructions of the applicable service bulletins listed in the following table are acceptable for compliance with the applicable paragraphs of this AD:   McDonnell Douglas service bulletin Applicable paragraphs of this AD MD90-24-066, excluding Appendix and Evaluation Form, dated July 28, 2000 (a)(1) and (b)(1) MD90-24-067, excluding Appendix and Evaluation form, dated July 28, 2000 (a)(2) and (b)(2) MD90-24-068, excluding Appendix and Evaluation Form, dated July 28, 2000 (a)(3) and (b)(3) MD90-24-069, excluding Appendix and Evaluation Form, dated July 28, 2000 (a)(4) and (b)(4) MD90-24-070, excluding Appendix and Evaluation Form, dated July 28, 2000 (a)(5) and (b)(5) MD90-24-071, excluding Appendix and Evaluation Form, dated July 28, 2000 (a)(6) and (b)(6) MD90-24-072, excluding Appendix and Evaluation Form, dated July 28, 2000 (a)(7) and (b)(7) Alternative Methods of Compliance (d) 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, Los Angeles Aircraft Certification Office (ACO), FAA. Operators shall submit their requests through an appropriate FAA Principal Maintenance Inspector, who may add comments and then send it to the Manager, Los Angeles ACO. Note 5: Information concerning the existence of approved alternative methods of compliance with this AD, if any, may be obtained from the Los Angeles ACO. Special Flight Permits (e) 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 (f) Unless otherwise specified in this AD, the actions shall be done in accordance with Boeing Service Bulletin MD90-24-066, excluding Appendix and Evaluation Form, Revision 01, dated February 8, 2001; Boeing Service Bulletin MD90-24-067, excluding Appendix and Evaluation Form, Revision 01, dated February 8, 2001; Boeing Service Bulletin MD90-24-068, excluding Appendix and Evaluation Form, Revision 01, dated February 8, 2001; Boeing Service Bulletin MD90-24-069, excluding Appendix and Evaluation Form, Revision 01, dated February 8, 2001; Boeing Service Bulletin MD90-24-070, excluding Appendix and Evaluation Form, Revision 01, dated February 8, 2001; Boeing Service Bulletin MD90-24-071, excluding Appendix and Evaluation Form, Revision 01, dated February 8, 2001; and Boeing Service Bulletin MD90-24-072, excluding Appendix and Evaluation Form, Revision 01, dated February 8, 2001; as applicable. 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 Boeing Commercial Aircraft Group, Long Beach Division, 3855 Lakewood Boulevard, Long Beach, California 90846, Attention: Data and Service Management, Dept. C1-L5A (D800-0024). Copies may be inspected at the FAA, Transport Airplane Directorate, 1601 Lind Avenue, SW., Renton, Washington; or at the FAA, Los Angeles ACO, 3960 Paramount Boulevard, Lakewood, California; or at the Office of the Federal Register, 800 North Capitol Street, NW., Suite 700, Washington, DC. Effective Date (g) This amendment becomes effective on December 31, 2002. Issued in Renton, Washington, on November 14, 2002. Vi L. Lipski, Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. 02-29805 Filed 11-25-02; 8:45 am] BILLING CODE 4910-13-P