As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 3461 - ON APPROACH TO DTW, THE LEFT GEAR UNSAFE LIGHT REMAINED ILLUMINATED AFTER GEAR EXTENSION. THE CREW PERFORMED AN ALTERNATE EXTENSION. THE UNSAFE LIGHT REMAINED ON BUT THE GEAR WAS VERIFIED TO BE SAFE THROUGH IN INFRARED SYSTEM. MAINTENANCE REPAIRED A BROKEN WIRE ON THE DOWN LOCK SENSOR. ALL CHECKS SATISFACTORY. (M)