What was found
DURING CLIMB, THE PILOT REPORTED STRONG FUSELAGE VIBRATION DURING CLIMB, FLIGHT LEVEL 250, AIS 320 KTS & 0.74M, DIMINISH BY LOWERING AIS 270 KTS. THE ACFT RETURNED FOR MAINTENANCE WHERE LANDED WITHOUT INCONVENIENCE. IAW TSM 05-50-00-810-801-A WAS FOUND PLAY IN EXCESS ON THE ELEVATORS TE, THE ELEVATORS WERE REMOVED IAW AMM 27-34-41-000-001-A. REPLACED THE BUSHINGS & BEARINGS TO THE ELEVATORS & INSTALLED IAW AMM 27-34-41-400-001-A. PERFORMED ADJUSTMENT & TESTS IAW AMM 27-34-00-740-001-A WITH NORMAL RESULTS, NO INSPECTION FOR HARD & OVERWEIGHT LANDING WAS REQUIRED DUE LIMITS AT LANDING WERE NOT EXCEEDED. THE ACFT WAS RETURNED TO SERVICE.