93-02-06 FOKKER: Amendment 39-8488. Docket 92-NM-192-AD.
Applicability: Model F27 Mark 100, 200, 300, 400, 500, 600, and 700 series airplanes; certificated in any category.
Compliance: Required as indicated, unless accomplished previously.
To prevent reduced structural integrity of the wings, accomplish the following:
(a) Within 3 years after the effective date of this AD, remove each bolt, part number AN3- 15A or AN3-16A, attaching the truss members to the ribs at wing stations 4800, 5950, 7200, 8350, and 9397, and install two bolts, part number NAS1303, in accordance with Fokker Service Bulletin F27/57-25, Revision 1, dated August 1, 1991.
(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, Standardization Branch, ANM-113, FAA, Transport Airplane Directorate. Operators shall submit their requests through an appropriate FAA Principal MaintenanceInspector, who may add comments and then send it to the Manager, Standardization Branch, ANM-113.
NOTE: Information concerning the existence of approved alternative methods of compliance with this AD, if any, may be obtained from the Standardization Branch, ANM-113.
(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 bolt installation shall be done in accordance with Fokker Service Bulletin F27/57-25, Revision 1, dated August 1, 1991. 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 Fokker Aircraft USA, Inc., 1199 North Fairfax Street, Alexandria, Virginia 22314. 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 March 12, 1993.