What was found
(CAN) AFTER START HYDRAULIC PRESSURE WAS AT 0. PUMP REPLACED AND IT WAS FOUND THAT THE DRIVE SPLINES WERE WORN OUT ON THE HYDRAULIC PUMP. PUMP SPLINES ARE SOFTER THAN THE ENGINE DRIVE.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
(CAN) AFTER START HYDRAULIC PRESSURE WAS AT 0. PUMP REPLACED AND IT WAS FOUND THAT THE DRIVE SPLINES WERE WORN OUT ON THE HYDRAULIC PUMP. PUMP SPLINES ARE SOFTER THAN THE ENGINE DRIVE.