47-47-07 BEECH: (Was Mandatory Note 1 of AD-777-1.) Applies to Model 35 Serial Numbers D1 to D491, Inclusive.
Compliance required prior to next annual inspection.
Replace the engine identification plate containing either E-165-4 or E-165-4A model designation with an identification plate, furnished by the engine manufacturer, having E-185-1 stamped in the engine designation block. The engine model designation, E-165-4 or E-165-4A, stamped on the airplane's identification plate should be permanently deleted through the use of a sharp-pointed instrument.
(Beech Service Bulletin No. 35-3 covers this same subject.)