As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CRUISE AT FL190, A LOUD THUMP WAS HEARD AMD FELT FROM THE NOSE COMPARTMENT ON THREE OCCASSIONS. JACKED A/C C/W GEAR BUMP TROUBLESHOOTING PER CE 750 MM CHAPTER 32-30-00. CLEANED ELECTRICAL CONNECTORS AT UPLOCK SWITCH HARNESS TO A/C PLUG PG005. OPS CHECK NORMAL. VERIFIED P/N ON LND GEAR CONTROL MODULE TO BE 0014637-2. NO DEFECTS NOTED AT THIS TIME.