As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PILOT RETURNED TO FIELD WHEN NLG DOOR LIGHT ILLUMINATED AFTER RETRACTION. GEAR WAS EXTENDED NORMALLY AND PERFORMED A SAFE LANDING. MX REMOVED EXCESSIVE AMOUNT OF SLUSH AND ICE FROM NLG DOOR. DOORS WERE CYCLED AND ALL COMPONENTS INSP WITH NO DEFECTS FOUND. ACFT SUCESSFULLY TEST FLOWN AND PLACED BACK INTO SERVICE.