AD 80-03-02 R1

80-03-02 R1 SHORT BROTHERS LTD.: Amendment 39-3679 as amended by Amendment 39-3857. Applies to Model SD3-30 airplanes, certificated in all categories.

Compliance is required as indicated unless already accomplished.

To prevent possible failure of the main landing gear beam sub-assembly, accomplish the following:

Prior to the accumulation of 6500 landings or within 25 landings after the effective date of this AD, whichever occurs later, replace the beam sub-assembly, Menasco P/N 17604-5 or 17604- 7, with a new beam sub-assembly, Menasco P/N 17604-15 (Left Hand) and P/N 17604-16 (Right Hand) or Menasco P/N 17604-17 (Left Hand) and P/N 17604-18 (Right Hand) in accordance with Section 10, "Accomplishment Instructions," of Menasco Manufacturing Service Bulletin 32-15, revision 4, dated May 25, 1979, or an equivalent approved by the Chief, Aircraft Certification Staff, AEU-100, FAA, Europe, Africa, and Middle East Region, c/o American Embassy, Brussels, Belgium. Upon replacement of the beam sub-assembly, make appropriate logbook entry indicating compliance with the provisions of this AD.

NOTE: Short Brothers Ltd. Service Bulletin SD3-32-28, revision 6, dated November 27, 1979, covers this same subject.

Amendment 39-3679 became effective February 7, 1980.

This Amendment 39-3857 becomes effective August 7, 1980.