AD 83-25-01

83-25-01 SHORT BROTHERS LIMITED: Amendment 39-4783. Applies to all Models of the SD3-30 airplane, certificated in all categories, with the serial numbers specified below. To prevent a potential fuel fire hazard, accomplish the following within the next 60 days after the effective date of this AD, unless already accomplished.

A. For aircraft serial numbers SH3002 to SH3091 inclusive, modify the fuel vapor exhaust ducting in accordance with paragraph 2, Accomplishment Instructions, of Shorts Service Bulletin No. SD3-53-47, Revision 3, dated June 23, 1983.

B. For aircraft serial numbers SH3002 to SH3089 inclusive, replace the existing flexible vapor proof shrouds covering fuel lines in the passenger compartment in accordance with paragraph 2, Accomplishment Instructions of Shorts Service Bulletin No. SD3-28-17, Revision 2, dated June 23, 1983.

NOTE: The actions of paragraph A., above, must be accomplished before performing the requirements of paragraph B.

C. For aircraft with serial numbers specified in paragraph 1, Planning Information, of Shorts Service Bulletin No. SD3-28-16, Revision 3, dated June 23, 1983, inspect, replace components if necessary, and pressure check the fuel lines as required in accordance with paragraph 2, Accomplishment Instructions, of the service bulletin.

NOTE: The actions of paragraphs A. and B., above, must be accomplished before performing the requirements of paragraph C.

D. Alternate 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.

E. 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.

F. This AD supersedes Amendment 39-4677 (48 FR 31631, July 11, 1983), AD 83- 13-07. This amendment becomes effective January 8, 1984.