AD 2000-21-01 Airworthiness Directives; Lockheed Model L-1011-385 Series Airplanes

Models named: L-1011-385 series. Read the applicability below — it usually turns on serial or part numbers too.

All Model L-1011-385 series 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 (g) 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. To prevent corrosion or fatigue cracking of certain structural elements, which could result in reduced structural integrity of the airplane, accomplish the following: Inspections (a) Except as provided by paragraph (b) of this AD, perform structural inspections to detect corrosion or fatigue cracking of certain structural elements of the airplane, in accordance with the applicable service bulletins listed under “Service Bulletin Number, Revision, and Date” in Tables I and II of Lockheed Service Bulletin 093-51-040, Revision 1, dated October 1, 1997, or Revision 2, dated October 21, 1999. Perform the initial inspections at the later of the times specified in paragraphs (a)(1) and (a)(2) of this AD. Thereafter, repeat each inspection at an interval not to exceed that specified in the applicable service bulletin listed in Revision 1 of Lockheed Service Bulletin 093-51-040. (1) Prior to the threshold specified in the individual service bulletin listed in Table I or II of Lockheed Service Bulletin 093-51-040, Revision 1, as applicable. (2) Within one repetitive interval after the effective date of this AD, as specified in the individual service bulletin listed in Table I or II of Lockheed Service Bulletin 093-51-040, Revision 1, as applicable; or within 14 months after the effective date of this AD for the service bulletins in Tables I and II that do not specify a repetitive interval; as applicable. Note 2: Operators should note that paragraphs (a)(1) and (a)(2) of this AD reference only Revision 1 of Lockheed Service Bulletin 093-51-040. Certain new revisions of the individual service bulletins listed in Tables I and II of Lockheed Service Bulletin 093-51-040, Revision 2, have reduced the compliance times below those specified in the service bulletin revision levels listed in Lockheed Service Bulletin 093-51-040, Revision 1. While this AD allows accomplishment of the actions in this AD in accordance with either Lockheed Service Bulletin 093-51-040, Revision 1, or Revision 2, the applicable compliance thresholds and repetitive intervals are those listed in the individual service bulletins listed in Table I or II of Lockheed Service Bulletin 093-51-040, Revision 1. Note 3: The inspections specified in Lockheed Service Bulletin 093-53-249, Revision 3, dated February 28, 1994, are included in the requirements of both AD 94-05-01, amendment 39-8839, and paragraph (a) of this AD. Inspections in accordance with Lockheed Service Bulletin 093-53-249, Revision 3, at the interval specified in Table I of Lockheed Service Bulletin 093-51-040, Revision 1, as required by this AD, are acceptable for compliance with the inspections in accordance with Lockheed Service Bulletin 093-53-249, Revision 3, required by AD 94-05-01. (b) The following service bulletins listed in Table II of Lockheed Service Bulletin 093-51-040, Revision 1, dated October 1, 1997, and Revision 2, dated October 21, 1999, are excluded from the requirements of paragraph (a) of this AD. (1) The structural inspections specified in Lockheed Service Bulletins 093-53-268, Revision 1, dated July 2, 1996, and 093-53-272, Revision 1, dated March 17, 1997, are not required by this AD. The inspections specified in these service bulletins are required by AD 99-08-20, amendment 39-11128. (2) The structural inspections specified in Lockheed Service Bulletin 093-53-258, Revision 1, dated April 4, 1996, are not required by this AD. Inspections equivalent to those specified in that bulletin are required by AD 95-17-03, amendment 39-9332. (3) The structural inspections specified in Lockheed Service Bulletin 093-57-203, Revision 5, dated April 22, 1996, are not required by this AD. Inspections equivalent to those specified in that bulletin are required by AD 98-10-14, amendment 39-10526. Corrective Action (c) If any cracking is detected during any inspection required by paragraph (a) of this AD, prior to further flight, accomplish the actions specified in paragraph (c)(1), (c)(2), (c)(3), or (c)(4) of this AD. (1) Repair in accordance with the applicable service bulletin referenced in Table I or II of Lockheed Service Bulletin 093-51-040, Revision 1, dated October 1, 1997, or Revision 2, dated October 21, 1999. (2) Repair in accordance with the applicable section of the Lockheed L-1011 Structural Repair Manual. (3) Accomplish the terminating modification in accordance with the applicable service bulletin referenced in Table I or II of Lockheed Service Bulletin 093-51-040, Revision 1, dated October 1, 1997, or Revision 2, dated October 21, 1999. (4) Repair in accordance with a method approved by the Manager, Atlanta Aircraft Certification Office (ACO), FAA. Terminating Action (d) Except as provided by paragraph (e) of this AD, install the terminating modification referenced in each service bulletin listed in Table II of Lockheed Service Bulletin 093-51-040, Revision 1, dated October 1, 1997, or Revision 2, dated October 21, 1999; in accordance with the applicable service bulletin listed under “Service Bulletin Number, Revision, and Date” in Table II of Lockheed Service Bulletin 093-51-040, Revision 1 or Revision 2. Except as provided by paragraph (f) of this AD, install each modification at the later of the times specified in paragraphs (d)(1) and (d)(2) of this AD. Such installation constitutes terminating action for the applicable structural inspection required by paragraph (a) of this AD. (1) Prior to the threshold specified in the applicable service bulletin listed in Table II of Lockheed Service Bulletin 093-51-040, Revision 1 or Revision 2. (2) Within 5 years or 5,000 flight cycles after the effective date of this AD, whichever occurs first. Note 4: Installation of the terminating modifications specified in Lockheed Service Bulletin 093-53-268, Revision 1, dated July 2, 1996, and Lockheed Service Bulletin 093-53-272, dated November 12, 1996, does not constitute terminating action for the repetitive inspection requirements of AD 99-08-20, amendment 39-11128. (e) Overhaul of the main landing gear actuator in accordance with Lockheed Service Bulletin 093-32-238, Revision 3, dated April 11, 1996, as listed in Table II of Lockheed Service Bulletin 093-51-040, Revision 1, dated October 1, 1997, is not required by paragraph (d) of this AD. (f) At the later of the times specified in paragraphs (f)(1) and (f)(2) of this AD: Install the terminating modification listed in Lockheed Service Bulletin 093-57-215, as referenced in Table II of Lockheed Service Bulletin 093-51-040, Revision 1, dated October 1, 1997, or Revision 2, dated October 21, 1999. Such installation constitutes terminating action for the inspections required by AD 98-10-14, amendment 39-10526. (1) Prior to the threshold specified in Lockheed Service Bulletin 093-57-203, Revision 5, dated April 22, 1996. (2) Within 2 years or 2,000 flight cycles after the effective date of this AD, whichever occurs first. Alternative Methods of Compliance (g) 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, Atlanta ACO. Operators shall submit their requests through an appropriate FAA Principal Maintenance Inspector, who may add comments and then send it to the Manager, Atlanta ACO. Note 5: Information concerning the existence of approved alternative methods of compliance with this AD, if any, may be obtained from the Atlanta ACO. Special Flight Permits (h) Special flight permits may be issued in accordance with §§ 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 (i) Except as provided by paragraphs (c)(2) and (c)(4) of this AD, the actions shall be done in accordance with Lockheed Service Bulletin 093-51-040, Revision 1, dated October 1, 1997; or Lockheed Service Bulletin 093-51-040, Revision 2, dated October 21, 1999. 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 Lockheed Martin Aircraft & Logistics Center, 120 Orion Street, Greenville, South Carolina 29605. Copies may be inspected at the FAA, Transport Airplane Directorate, 1601 Lind Avenue, SW., Renton, Washington; at the FAA, Atlanta Aircraft Certification Office, One Crown Center, 1895 Phoenix Boulevard, suite 450, Atlanta, Georgia; or at the Office of the Federal Register, 800 North Capitol Street, NW., suite 700, Washington, DC. Effective Date (j) This amendment becomes effective on November 24, 2000. Issued in Renton, Washington, on October 11, 2000. Donald L. Riggin, Acting Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. 00-26590 Filed 10-19-00; 8:45 am] BILLING CODE 4910-13-P