AD 93-17-08

93-17-08 BOEING: Amendment 39-8679. Docket 92-NM-200-AD.

Applicability: Model 737-100, 737-200, 737-200C airplanes, certificated in any category.

Compliance: Required as indicated, unless accomplished previously.

To prevent structural failure, accomplish the following:

(a) Except as provided below, prior to reaching the incorporation thresholds listed in Boeing Document No. D6-38505, "Aging Airplane Service Bulletin Structural Modification and Inspection Program--Model 737-100/-200/-200C," Revision F, dated April 23, 1992, or within the next 4 years after the effective date of this AD, whichever occurs later, accomplish the structural modifications listed in Appendices A.3 and B.3 of the Boeing Document. Service bulletins whose threshold is specified in the Boeing Document by a calendar date must be modified by that date in lieu of the 4 years specified in this paragraph.

NOTE 1: The modifications required by this paragraph do not terminate the inspection requirements of any other AD unless that AD specifies that any such modification constitutes terminating action for the inspection requirements.

(b) 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, Seattle Aircraft 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, Seattle ACO.

NOTE 2: Information concerning the existence of approved alternative methods of compliance with this AD, if any, may be obtained from the Seattle ACO.

(c) Special 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.

(d) The modifications shall be done in accordance with Boeing Document No. D6-38505, "Aging Airplane Service Bulletin Structural Modification and Inspection Program-- Model 737-100/-200/-200C," Revision F, dated April 23, 1992, which includes the following list of effective pages:

Page Number Revision Shown on Page Date Shown on Page List of Active

Pages: Page c F (This page is not dated)

(NOTE: The issue date of Revision F is indicated only on page c of the List of Active Pages; no other page of the document is dated.) 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 Boeing Commercial Airplane Group, P.O. Box 3707, Seattle, Washington 98124-2207. Copies may be inspected at the FAA, Transport Airplane Directorate, 1601 Lind Avenue, SW., Renton, Washington; or at the Office of the Federal Register, 800 North Capitol Street, NW., suite 700, Washington, DC.

(e) This amendment becomes effective on October 1, 1993.