What was found
TAIL ROTOR ASSY WILL NOT BALANCE, PLAY IN FEATHERING BEARINGS. BOTH TAIL ROTOR BLADES ERODED ON HEADING EDGE, GRIP BUSHINGS WORN. ACTION TAKEN: DISASSEMBLED, CLEANED AND INSPECTED PARTS. INSTALLED NEW INNER SLEEVE BUSHINGS, NEW GRIP BUSHINGS, SEALS, SERVICEABLE BLADES, NEW NUTS AND WASHERS. REASSEMBLED AND BALANCED IAW BO-105 M;M CHAPTER 33 & 107 AND REM 301. C/W TABLE 101-10-1 SUPPLEMENTARY INSPECTION 300 HOUR AND 2400 HR INSPECTION. C/W BY AEC.