As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SYSTEM 1 HYD QUANTITY DROPPED BELOW 1 GALLON. NR 1 HYD PRESSURE AND TEMP REMAINED FINE. COMPLETED ACTIONS PER QRH. EVIDENCE OF HYD LEAK AT WINGROOT ON LT WING. MX TO BEGIN T/S. FOUND LEAK ON LEFT WING L/E SLAT PIPING (ITEM 720) REF 27-82-24-02 FIG 2 AT BEND. REMOVED 9 IN PIECE OF PIPING AND REPLACED NEW SECTION PER MM 20-10-01-2, LEAK CHECK GOOD. SERVICED SYS 1 HYD SYS PER 12-13-02-3, OK FOR RETURN TO SERVICE.