What was found
DURING DISASSEMBLY FOR OVERHAUL, FOUND WORN DRIVESHAFT SPLINES (SMALL END) AND WORN INTERNAL GEAR SPLINE. (PARTS SCRAPPED). SUSPECT IMPROPER LUBRICATION.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
DURING DISASSEMBLY FOR OVERHAUL, FOUND WORN DRIVESHAFT SPLINES (SMALL END) AND WORN INTERNAL GEAR SPLINE. (PARTS SCRAPPED). SUSPECT IMPROPER LUBRICATION.