4Y - TAIL ROTOR HUB, IGB HOUSING, TGB MAST, MAIN ROTOR TENSION LINK, MOUNTING BEARING SUPPORT BRACKET, TAIL ROTOR SPIDER, TAIL ROTOR SLIDER,MAIN ROTOR HUB, TAIL ROTOR HALF SCISSORS,MAIN ROTOR PITCH CHANGE LINKS, MAIN ROTOR PITCH LINKS, MAIN ROTOR RING NUT, TAIL ROTOR PITCH CONTROL ARMS, MAIN ROTOR PRESSURE BOLTS, TAIL ROTOR PITCH LINK NOLTS, TAIL ROTOR PITCH LINK ASSEMBLIES, TAIL ROTOR CONTROL ROD NUT, TAIL ROTOR DAMPERS BOLTS, TAIL ROTOR DAMPERS, TAIL ROTOR PRESSURE BOLTS, TAIL ROTOR LOCKING FLANGE, TAIL ROTOR LOCK NUT, TAIL ROTOR LOWER CONICAL HALF-RING, TAIL ROTOR UPPER CONICAL RING,TGB FITTING,
