As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) DURING DEFECT TROUBLE SHOOTING OF THE YAW SAS 2 FAIL & RUDDER HYDRAULIC LIMITER FOUND WRONG PART INSTALLED, (UNION WITH OUT A RESTRICTOR), INSTALLED ON THE HYDRAULIC SHUTOFF VALVE REPLACED AIRCRAFT DISPATCHED.PART WAS FOUND NOT TO HAVE BEEN INSTALLED BY AIR TRANSIT (PART WAS NOT IN THE AIR TRANSIT SYSTEM), THE AIRCRAFT COULD HAVE BEEN IMPORTED IN THIS MANNER.WITHOUT DISASSEMBLY COULD NOT VISUALLY CONFIRM THAT THE PROPER UNION IS INSTALLED.