76-24-04 MORANE SAULNIER (SOCATA): Amendment 39-2780. Applies to Models MS 892A-150, MS 892E-150, and MS 893A airplanes, all serial numbers, and Model MS 893E airplanes, serial numbers 12674 and below, certificated in all categories.
Compliance is required as indicated, unless already accomplished.
To detect rocker oil return pipe wear and prevent possible engine failure, accomplish the following:
(a) Within the next 10 hours time in service after the effective date of this AD, inspect the rocker oil return pipes for wear in accordance with Socata Service Bulletin No. 124, GR 79-09, dated January 1976, or an FAA-approved equivalent.
(b) If, during the inspection required by paragraph (a) of this AD, rocker oil return pipe wear is found to exceed 10% of pipe wall thickness, before further flight, replace the part with a new part of the same part number.
(c) Within the next 25 hours time in service after the effective date of this AD, rework the cylinder cooling deflector spring in accordance with Socata Service Bulletin No. 124, GR 79-09, dated January 1976, or an FAA-approved equivalent.
This amendment becomes effective on December 14, 1976.