78-12-10 SHORT BROTHERS LIMITED: Amendment 39-3236. Applies to Model SD3-30 airplanes certificated in all categories.
Compliance is required prior to the accumulation of 4000 landings or prior to accumulating 25 landings after the effective date of this AD, whichever occurs later, unless already accomplished, and thereafter at intervals not to exceed 4000 landings.
To prevent failure of the rod end bearing of the nose wheel steering actuator, replace the rod end bearing, P/N MS 21242S8K, with a new part of the same part number in accordance with Section 10, "Accomplishment Instructions" of Menasco Manufacturing Service Bulletin 32-21, dated January 11, 1978, or an FAA approved equivalent.
NOTE: Short Brothers Limited Service Bulletin SD3-32-37 covers this same subject.
This amendment becomes effective June 26, 1978.