As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DTW - FLT 626 - DURING LANDING GEAR EXTENSION EXPERIENCED A UNSAFE INDICATION ON RIGHT MAIN LANDING GEAR. RECYCLED LANDING GEAR, RIGHT MAIN GEAR REMAINED UNSAFE. LANDED DTW WITHOUT INCIDENT. MAINTENANCE REMOVED AND REPLACED THE RIGHT MAIN GEAR DOWN LOCK POSITION SWITCH. OPERATIONAL CHECK GOOD IAW DC9 MM CHAPTER 32-60-1. AIRCRAFT RETURNED TO SERVICE. (M)