What was found
THE PROPELLER WAS RECEIVED FOR COMPLAINT OF EXCESSIVE VIBRATION. AFTER DISASSEMBLY, INSPECTION REVEALED C7075 BLADE BEARINGS BROKEN, BEARING FRAGMENTS FOUND IN HUB BLADE SOCKETS 2 THROUGH 6, COMPOSITE WINDING DAMAGE TO BLADES 2 THROUGH 4, BLADE NR 4 FORK SLOT THIN WALL SIDE BRIKEN ON FORK CAM FOLLOWER AND B-475 RETENTION WASHER DAMAGED BEYOND REPAIR ON BLADE NR 4 PITCH CHANGE BRACKET, PITCH CHANGE BRACKET BOLTS FAILED TORQUE TEST ON BLADES 3 & 4.