As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DTW - FLT 3445 - ON APPROACH, RT MAIN GEAR DID NOT EXTEND. THE CREW CYCLED GEAR AND PROBLEM REMAINED. THE CREW PERFORMED AN EMERGENCY GEAR EXTENSION AND LANDED WITHOUT INCIDENT IN DTW. MAINTENANCE REPLACED RT MLG BELLCRANK SPRING. SYSTEM OPERATED SATISFACTORILY. (X)