90-01-05 BOEING: Amendment 39-6443. Docket No. 89-NM-167-AD. Applicability: Model 767 series airplanes, as listed in Boeing Service Bulletin 767-25-0123, dated May 25,1989, certificated in any category. \n\n\tCompliance: Required within the next 90 days after the effective date of this AD, unless previously accomplished.\n \n\tTo ensure proper arming of the emergency evacuation slide mechanism for entry/service doors and to preventa false armed indication, accomplish the following: \n\n\tA. For Group 1 airplanes, perform the inspection and rework of the acoustical seal for entry/service doors in accordance with paragraph III., Part B., of Boeing Service Bulletin 767-25-0123, dated May 25, 1989, or Revision 1, dated September 14, 1989. \n\n\tB. For Group 2 airplanes, rework the acoustical seal for entry/service doors in accordance with paragraph III., Part C., of Boeing Service Bulletin 767-25-0123, dated May 25, 1989, or Revision 1, dated September 14, 1989. \n\n\tC. An alternate means ofcompliance or adjustment of the compliance time, which provides an acceptable level of safety, may be used when approved by the Manager, Seattle Aircraft Certification Office, FAA, Northwest Mountain Region. NOTE: The request should be forwarded through an FAA Principal Maintenance Inspector (PMI), who will either concur or comment, and then send it to the Manager, Seattle Aircraft Certification Office. \n\n\tD. Special flight permits may be issued in accordance with FAR 21.197 and 21.199 to operate airplanes to a base in order to comply with the requirements of this AD. All persons affected by this directive who have not already received the appropriate service documents from the manufacturer may obtain copies upon request to Boeing Commercial Airplanes, P.O. Box 3707, Seattle, Washington 98124. These documents may be examined at the FAA, Northwest Mountain Region, Transport Airplane Directorate, 17900 Pacific Highway South, Seattle, Washington, or Seattle Aircraft Certification Office, 9010 East Marginal Way South, Seattle, Washington.\n\n This amendment (39-6443, AD 90-01-05) becomes effective on February 5, 1990.