As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LANDING GEAR INOPERATIVE, CAUTION LIGHT ILLUMINATED AFTER TAKE-OFF. LANDING GEAR HANDLE REMAINED ILLUMINATED. ALL OTHER GEAR INDICATIONS DARK. REPLACED NGLK1 HARNESS AND SENSOR. OPS CHECKED GOOD. NO PRESENT FAULTS FOUND ON PSEU.RETURNED TO SERVICE.