As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
UPON COMPLETION OF A LOW APPROACH, GEAR HANDLE SELECTED UP FOR CLIMBOUT. AFTER MAINS RETRACTED, NOSE GEAR REMAINED EXTENDED AND RED LIGHT IN HANDLE CONTINUED FLASHING. INITIALLY NO OTHER INDICATIONS. AFTER HOLDING AND APPROXIMATELY 40 MINUTES AFTER INITIAL MALFUNCTION, NOSE GEAR DOOR LIGHT ILLUMINATED. LIGHT IN THE HANDLE WAS FLASHING ENTIRE TIME.