AD 79-10-05

79-10-05 BOEING: Amendment 38-3463. Applies to all Model 727 series airplanes, certificated in all categories, with outboard trailing edge foreflap sequence carriage sliders made from polyimide plastic. Compliance required as indicated. A. Within the next 200 landings from the effective date of this AD, and thereafter at intervals not to exceed 200 landings inspect the sliders for cracks or missing pieces in accordance with Boeing Alert Service Bulletin No. 727-57-A147, or later FAA approved revisions, or an equivalent manner approved by the Chief, Engineering and Manufacturing Branch, FAA Northwest Region. B. Cracked sliders are to be replaced prior to further flight, except that if a slider is cracked or missing pieces exist at only one attach bolt hole location, as noted in Boeing Alert Service Bulletin No. 727-57-A147, the slider may remain in service but must be inspected at intervals not to exceed 50 landings and must be replaced within 200 flights from detection of the initial cracking. C. Terminating action of this AD consists of replacement of outboard trailing edge foreflap sequence carriage sliders with Boeing supplied Beryllium Copper sliders or an equivalent approved by the Chief, Engineering and Manufacturing Branch, FAA Northwest Region. D. Airplanes may be flown to a maintenance base for replacement in accordance with FAR 21.197. The manufacturer's specification and procedures identified and described in this directive are incorporated herein and made a part hereof pursuant to 5 U.S.C. 552(a)(1). All persons affected by this directive who have not already received these documents from the manufacturer, may obtain copies upon request to Boeing Commercial Airplane Company, P.O. Box 3707, Seattle, Washington 98124. These documents may also be examined at FAA Northwest Region, 9010 East Marginal Way South, Seattle, Washington 98108.

This amendment becomes effective May 18, 1979.