As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 6139 - RECEIVED A NOSE GEAR DISAGREE WARNING WHEN EXTENDING GEAR. REPLACED NOSE GEAR SELECTOR VALVE IAW 32-33-10 AND LANDING GEAR HANDLE ASSEMBLY IAW 32-31-01. OPS CHECK GOOD, PN 750006000, S/N OFF 02861, PN OFF 601R50967-11, S/N OFF 1468.