As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CAPTAIN REPORTED THAT QUANTITY AND PRESSURE WERE LOOSE ON LEFT HYDRAULIC SYSTEM. DURING ENGINE RUNNING, A LEAK WAS DETECTED IN THE HOUSING OF THE HYDRAULIC PUMP FILTER. THE MODE FILTER HYDRAULIC LEFT SIDE PUMP ENGINE DRIVE WAS REPLACED IAW MM 29-10-14, TESTED CORRECT. PER STRONG HYDRAULIC FLUID SMELL, LEFT AIR CONDITIONING SYSTEM WAS DEFERRED IAW MEL 21-1. ADDITIONALLY AIR CONDITIONING WATER SEPARATOR WAS REPLACED IAW MM 21-20-02, TESTED CORRECT.