As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) AFTER GEAR UP SELECTION, AMBER NLG DOOR INDICATION REMAINED ILLUMINATED. AIR TURN BACK AND ALTERNATE EXTENSION PERFORMED. AIRCRAFT TO BE TOWED INTO HANGAR AND GEAR SWINGS/TROUBLESHOOTING TO BE PERFORMED. SUSPECT NOSE GEAR DOOR SSV, TO BE REPLACED. (TC NR 20180313017).