As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CLIMB, THE LANDING GEAR DOOR OPEN LIGHT ILLUMINATED AFTER LANDING GEAR RETRACTION. RECYCLED LANDING GEAR AND LIGHT EXTINGUISHED. AIRCRAFT CONTINUED TO DTW AND LANDED WITHOUT INCIDENT. ADJUSTED LEFT MAIN LANDING GEAR DOOR TARGET FOR SWITCH. OPERATIONAL CHECK GOOD.