As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ABNORMALLY LOUD SQUEAL FROM FRONT OF AIRCRAFT, POST INSPECTION FOUND NOSE LANDING GEAR DOOR SEQUENCE PROXIMITY SHOWED IN CLOSE POSITION. REMOVED AND REPLACED NOSE LANDING GEAR DOOR SEQUENCE PROXIMITY SENSOR IAW EMB 32-63-03. OPERATIONAL CHECK GOOD. AIRCRAFT RETURNED TO SERVICE.