85-16-08 SHORT BROTHERS LTD.: Amendment 39-5101. Applies to Model SD3-60 airplanes as listed in Short Brothers Ltd. Service Bulletin SD360-53-11, Revision 1, dated November 1984, certificated in any category. Compliance is required within twelve months after the effective date of this AD, unless previously accomplished. To prevent structural failure under ditching conditions, accomplish the following:
A. Install Cherrymax rivets in the bottom section of fuselage frame 475 in accordance with Short Brothers Ltd. Service Bulletin SD360-53-11, Revision 1, dated November 1984.
B. Alternate means of compliance which provide an acceptable level of safety may be used when approved by the Manager, Seattle Aircraft Certification Office, 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.
This amendmentbecomes effective August 22, 1985.