As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DTW - FLT 3118 - ON APPROACH, LEFT GEAR UNSAFE LIGHT TOOK THIRTY SECONDS LONGER TO EXTINGUISH THAN THE RIGHT. MAINTENANCE WAS UNABLE TO DUPLICATE THE DISCREPANCY. THE UPLOCK ROLLER WAS CLEANED AND LUBED. SYSTEM OPERATED SATISFACTORILY. (X)