As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 1149 DTW-LAX, LOSS THE LEFT HYD SYSTEM QUANTITY REQUIRING THE MLG TO BE EXTENDED ALTERNATELY. FOUND LEAK FROM PRESSURE FLEX HOSE MPN AS115-06-0172 AT NLG DOOR ACTUATOR . REPLACED HOSE NO LEAKS, REPLACED PTU, EDP AND ALL FILTERS OK FOR SVC.