As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING ROUTINE INSPECTION FOUND AIR CONDITIONING DRIVE LEAKING OIL, REMOVED ACFT DRIVE AND FOUND GEAR SHAFT DRIVE SPLINES, AND DRIVEN GEAR SHAFT SPLINES, COMPLETELY WORN BEYOND LIMITS SPLINES ON BOTH DRIVE AND DRIVEN GEAR SHAFTS ALMOST GONE.