What was found
DURING 1000 HOUR INSPECTION, THE ENGINE TO TRANSMISSION MOUNT TUBE WAS FOUND TO HAVE EXCESSIVE PLAY. THE GIMBAL RING MOUNT BUSHINGS ON THE TUBE WERE MEASURED, AND FOUND TO BE OUT OF LIMITS. UPON FURTHER INVESTIGATION, AND A PHONE CALL TO AMERICAN EUROCOPTER, WE FOUND THE FORWARD LATERAL LAMINATED ISOLATOR WAS DELAMINATING. ALSO, THE AFT LATERAL LAMINATED ISOLATOR WAS FOUND TO HAVE BROKEN TORQUE, AND CAUSED FURTHER DAMAGE TO THE CROSSBEAM UNDER THE TRANSMISSION. THE ENGINE TO TRANSMISSION MOUNT TUBE HAD TO BE SCRAPPED, THE BUSHINGS ARE NOT REPLACEABLE.