83-09-04 BOEING: Amendment 39-4650. Applies to Boeing Model 767 airplanes listed in Boeing Alert Service Bulletin 767-52A7 Revision 1, dated April 7, 1983, or later FAA approved revisions. To prevent the inadvertent opening of the airplane passenger or service door, accomplish the following: \n\n\tA.\tWithin the next 10 days after the effective date of this AD, unless already accomplished, perform the maintenance check of paragraph A of Section III of Boeing Alert Service Bulletin 767-52A7 Revision 1 dated April 7, 1983, or later FAA approved revisions. Doors which fail to meet this check must accomplish the check of paragraph A.2. of Section III of the Boeing Alert Service Bulletin, prior to each flight until rigged in accordance with paragraph B of this AD. \n\n\tB.\tWithin 30 days after the effective date of this AD, unless already accomplished, passenger or service doors that do not meet the maintenance check of paragraph A of this AD must be rigged in accordance with paragraph Bof the Boeing Alert Service Bulletin. \n\n\tC.\tAlternate means of compliance which provide an equivalent level of safety may be used when approved by the Manager, Seattle Aircraft Certification Office, FAA, Northwest Mountain Region. \n\n\tAll 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 the FAA, Northwest Mountain Region, 9010 East Marginal Way South, Seattle, Washington. \n\n\tThis amendment becomes effective May 25, 1983.