As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIR TURNBACK AFTER TAKE OFF. RECEIVED LEVEL 2 ALERT HYD 3 FAIL. DURING INSPECTION, FOUND THE LT LANDING GEAR HYD TRIM CYLINDER PRESSURE PIPE BROKEN. TEMP REPAIR OF HYD RIGID PIPES WITH FLEXIBLE WAS APPROVED BY ENGINEERING IAW AMM 20-10-01-300-805, THREE FLEXIBLE HOSES INSTALLED IAW AMM 20-10-01-300-805. LEAK CHECKED GOOD.