As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DTW - DURING APPROACH WHEN LANDING GEAR WAS EXTENDED, RIGHT MAIN LANDING GEAR UNSAFE LIGHT REMAINED ILLUMINATED. CYCLED LANDING GEAR AND USED MANUAL EXTENSION SYSTEM. LUBRICATED LANDING GEAR AND CYCLED LANDING GEAR. LANDING GEAR OPERATION AND INDICATION SYSTEM CHECKED NORMAL. (M)