What was found
ELEVATOR PUSH ROD END BEARING (PHF31-14, FOUND TO BE FROZEN FROM RUST AND GRIME. ROD END BEARING BROKE AT THREADED PORTION DUE TO LACK OF MOVEMENT. AD 73-21-01 ADDRESSES LUBRICATION OF ALL CONTROL AND LANDING GEAR ROD END BEARINGS BUT DOES NOT ADDRESS INSPECTION OF OPERATION AND FREEDOM OF MOVEMENT. SERVICE INSTRUCTION M20-106 GIVES A GOOD INSPECTION OF PRIMARY FLIGHT CONTROL/ JOINTS. THAT SHOULD BE INCORPORATED INTO THE INSPECTION MANUAL AND/OR AD. (K)