As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LT HYD QTY EICAS, RTFL. FOUND BOTH LINES DAMAGED AND LEAKING TO LT MLG DOWNLOCK ACTUATOR. REMOVED BOTH LINES FROM LT MLG DOWNLOCK ACTUATOR. BENCH CHECKED LINES AND FOUND ONE LINE BAD. OTHER LINE OKAY FOR SERVICE. REPLACED BAD LINE. HYD FLUID LEAKING FROM NR1 ENG AFT PYLON. SECURED B-NUT ON REV ISO VALVE IN NR 1 PYLON. LEAK CHECKED OK. REVERSER OPS CHECKED OKAY.