As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) INCIDENT DETAILS: AFTER DEPARTURE, FLIGHT ENCOUNTERED A HYDRAULIC PROBLEM AND ELECTED TO DIVERT TO FRA WHERE AN OVERWEIGHT LANDING WAS CARRIED OUT. MTC CONTROL, FLEET MANAGER AND DUTY PILOT WERE ADVISED. RESOLUTION FOUND CRACK ON TEE FITTING OF FLAPERON PCU RETURN LINE. TEE FITTTING REPLACED AND TORQUED ACC AMM 20-11-00-910-801 STANDARD TORQUE VALUES. HYD SYS SVCD. LEAK CHK C/O NO LEAK EVIDENT.