As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER SELECTING GEAR DOWN, ONLY THE 2 MAIN GEAR LIGHTS WERE GREEN. NOSE GEAR HAD NO GREEN OR RED LIGHTS. NOSE GEAR PIN WAS UP (INDICATING GEAR DOWN). LIGHTS TESTED NORMAL. AFTER ABOUT 10 SECONDS. NOSE GEAR INDICATED GREEN WITH NO RED. ALL OTHER INDICATIONS WERE NORMAL. CHECKED AND FOUND BACKSHELL FOR NLG DOWNLOCK SWITCH BACKED OFF SHOWING 4-5 THREADS. TIGHTENED BACKSHELL. APPLIED CONTACT CLEANER TO BOTH DOWNLOCK AND GEAR DOOR MICRO SWITCHES. OPS CHECKED WITH NO DEFECTS.