As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
GEAR DISAGREE WARNING MESSAGE DURING GEAR EXTENSION ON LANDING. COMPLIED WITH QRH. MANUAL GEAR EXTENSION REQUIRED. (FLT#3134) CLOSED PERFORMED FUNCTION CHECK OF MLG EXTENSION AND RETRACTION, AND PERFORMED GEAR DISAGREE OPS CHECK IAW AMM. FUNCTION AND OPS CHECK GOOD. PERFORMED MANUAL RELEASE CHECK, AND NUMEROUS EXTENSION/RETRACTION OPS CHECKS IAW AMM. OPS CHECK GOOD WITH NO DUPLICATION OF DISAGREE FAULT.