As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
GEAR DISAGREE WARNING MESSAGE ON APPROACH TO LANDING. BOTH MAIN GEARS WENT GREEN; HOWEVER NOSE GEAR STAYED YELLOW HASH MARKS. RAN QRH PROCEDURE AND LANDED. (FLT#5732) CLOSED REMOVED AND INSTALLED NLG UPLOCK PIN ASSY IAW CMM AND AMM. CYCLED LANDING GEAR, OP CHECKS GOOD.