92-13-03 MCDONNELL DOUGLAS: Amendment 39-8273. Docket No. 92-NM-104-AD. \n\n\tApplicability: Model MD-11 series airplanes, as listed in McDonnell Douglas MD-11 Service Bulletin 27-18, Revision 1, dated October 16, 1991; certificated in any category. \n\n\tCompliance: Required as indicated, unless accomplished previously. \n\n\tTo prevent inadvertent slat deployment during flight at cruise altitude, which could create significant vibrations and cause damage to the elevators, accomplish the following: \n\n\t(a)\tWithin 15 days after the effective date of this AD, accomplish the requirements of either sub-paragraph (a)(1) or (a)(2) of this AD: \n\n\t\t(1)\tReplace the quadrant, gate, and spacer on the flap control module, and re-identify the module, in accordance with paragraph C. of McDonnell Douglas MD-11 Service Bulletin 27-18, dated August 30, 1991 or "Option I" of paragraph C. of McDonnell Douglas MD-11 Service Bulletin 27-18, Revision 1, dated October 16, 1991. \n\n\t\t(2)\tModify the quadrant and gate on the flap control module, and replace a spacer on the flap control module, and re-identify the module, in accordance with "Option II" of paragraph C. of McDonnell Douglas MD-11 Service Bulletin 27-18, Revision 1, dated October 16, 1991. \n\n\t(b)\tAn 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 Certification Office (ACO), 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, Los Angeles ACO. \n\n\tNOTE: Information concerning the existence of approved alternative methods of compliance with this AD, if any, may be obtained from the Los Angeles ACO. \n\n\t(c)\tSpecial flight permits may be issued in accordance with FAR 21.197 and 21.199 to operate the airplane to a location where the requirements of this AD can be accomplished. \n\n\t(d)\tThe replacement and modification shall be done in accordance with McDonnell Douglas MD-11 Service Bulletin 27-18, dated August 30, 1991; or McDonnell Douglas MD-11 Service Bulletin 27-18, Revision 1, dated October 16, 1991; 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 McDonnell Douglas Corporation, P.O. Box 1771, Long Beach, California 90846-0001, Attention: Business Unit Manager, Technical Publications - Technical Administrative Support, C1-L5B. Copies may be inspected at the FAA, Transport Airplane Directorate, 1601 Lind Avenue SW., Renton, Washington; or at FAA, Transport Airplane Directorate, 3229 East Spring Street, Long Beach, California 90806-2425; or at the Office of the Federal Register, 1100 L Street NW., Room 8401, Washington, DC. \n\n\t(e)\tThis amendment becomes effective on July 6, 1992.