As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON SEVERAL OCCASIONS THE CREW HAD REPORTED AN INTERMITTENT , LG UNLOCK ANNUNCIATOR, ILLUMINATING IN FLIGHT. TROUBLESHOOTING DETERMINED THAT THE NLG UPLOCK & DOWNLOCK WERE DEFECTIVE. THE SWITCHES WERE REPLACED WITH NEW PN MS24331-1 & RIGGED IAW THE AMM 32-20-00 & 32-30-00. OPERATIONS CHECKED OK.