As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) FAULT:AFTER TAKE-OFF MASTER WARNING AND GEAR DISAGREE MSG ON EICAS. ACTION: FOUND METAL CONTAMINATION IN HYD. SYST. NR 3, IN RETURN PRESS, CASE DRAIN FILTERS. ALL FILTERS REPLACED AND SYSTEMS FLUSHED IAW AMM 29-10-00-617-803. HYD PUMPS 3A, B REPL'D. NOSE GEAR STRUT SERVICED AND G/SWING C/OUT IAW AMM 32-20-00. ACFTSERV.