AD 86-04-04

86-04-04 FOKKER B.V.: Amendment 39-5228. Applies to Fokker Model F28 airplanes, serial numbers 11003 to 11171 inclusive, 11991 and 11992, certificated in any category, equipped with Walter Kidde fire extinguishers, P/N 8900317, 892480, or 893948. Unless already accomplished, as indicated with an "x" punch stamped or "SB26.20.240" ink-stamped on the cartridge holder, accomplish the following within 60 days after the effective date of this AD:

A. To preclude the malfunctioning of these fire extinguishers, inspect the cartridge holders for proper internal dimension tolerances, and replace, if necessary, in accordance with Fokker Service Bulletin F28/26-12, dated September 28, 1981.

B. Alternate means of compliance which provide an acceptable level of safety may be used when approved by the Manager, Standardization Branch, ANM-113, FAA, Northwest Mountain Region.

C. Special flight permits may be issued in accordance with FAR 21.197 and 21.199 to operate airplanes to a base for the accomplishment of inspections and/or modifications required by 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 the Manager, Maintenance and Engineering, Fokker B.V., Product Support, P.O. Box 7600, 11172J Schiphol Oost, The Netherlands, or Walter Kidde, S.E. Service Center, 3994 N.W. 27th Street, Miami, Florida 33142. These documents may be examined at the FAA, Northwest Mountain Region, 17900 Pacific Highway South, Seattle, Washington, or 9010 East Marginal Way South, Seattle, Washington.

This amendment becomes effective March 13, 1986.