As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING DESCENT FL20.0, DOOR OPEN LIGHT ILLUMINATED ALONG WITH PRIMARY NOSE DOOR OPEN LIGHT. PRIMARY NOSE GEAR DOOR IND. TRANSFERRED TO DMI NR 612 IAW MEL 32-12, PLACARDS INSTALLED. DEFECT HAS NOT REOCCURED ON SUBSEQUENT FLIGHTS. CANNOT DUPLICATE ON GROUND, SYSTEM OPS CHECK NORMAL. THIS CLEARS DMI NR 612 PLACARDS REMOVED.