As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) AIRCRAFT RETURN TO BLOCK AFTER LOSS OF HYDRAULIC FLUID. AFTER INVESTIGATION MAINTENANCE FOUND FROM LT ENGINE DRIVE HYDRAULIC PUMP PRESSURE LINE AND AC HYDRAULIC PUMP, T-FITTING AT FS 319 CRACKED. THE FITTING WAS REPLACED, SYSTEM REPLENISHED AND LEAK CHECK SERVICEABLE. AIRCRAFT RETURN TO SERVICE.