As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
GEAR DISAGREE NOSE DOWN, MAINS BOTH UP & LOCKED. PERFORMED QRH CYCLED GEAR HANDLE 2 TIMES, REPEATS. PULLED MANUAL GEAR RELEASE HANDLE, ALL GEAR DOWN & LOCKED. THE INITIAL WARNING WAS 6 SECONDS AFTER GEAR WAS ELECTED DOWN. NO INDICATION OF ANY ISSUES IN NR 3 HYD. EMER WAS DECLARED. REPLACED MLG SELECTOR VLV IAW AMM 32-32-10. LEAK & OPERATIONS CHECKED GOOD AT THIS TIME.