As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTED THAT THE NOSE LANDING GEAR REQUIRED A MANUAL EXTENSION ON APPROACH TO DTW. EXTENSIVE TROUBLESHOOTING WAS PERFORMED. MAINTENANCE FOUND THAT THE NLG LOCK ACTUATOR WAS AT FAULT. THE NLG LOCK ACTUATOR WAS REMOVED AND REPLACED IAW MM 32-33-00. A FLIGHT EVALUATION WAS CONDUCTED AND THE GEAR WAS CYCLED SUCESSFULLY SEVERAL TIMES.