What was found
PILOT REPORTED A SERVO AND HYD LIGHT ILLUMINATION DURING FLIGHT. UPON INSPECTION IT WAS FOUND, THAT THE SPLINES OF THE BELT DRIVEN HYD PUMP DRIVE COUPLING HAD WORN TO THE POINT THEY WERE SLIPPING. REPLACED HYD PUMP AND DRIVE COUPLING.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
PILOT REPORTED A SERVO AND HYD LIGHT ILLUMINATION DURING FLIGHT. UPON INSPECTION IT WAS FOUND, THAT THE SPLINES OF THE BELT DRIVEN HYD PUMP DRIVE COUPLING HAD WORN TO THE POINT THEY WERE SLIPPING. REPLACED HYD PUMP AND DRIVE COUPLING.