As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CLIMBOUT, NOSE LANDING GEAR GREEN LIGHT REMAINED ON AFTER GEAR WAS RETRACTED. RECYCLED GEAR WITH NO CHANGE. FLIGHT RETURNED TO DTW AND LANDED WITHOUT INCIDENT. REPLACED NOSE GEAR UPLOCK SWITCH. ALSO, REPLACED NOSE GEAR GREEN SAFE AND RED UNSAFE LIGHT ASSEMBLIES. OPERATIONAL CHECK NORMAL AND AIRCRAFT RETURNED TO SERVICE.