As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ANC - FLT 145 - DURING APPROACH ON GEAR EXTENSION THE NOSE GEAR REMAINED UP. RECYCLED GEAR AND ALL LANDING GEAR EXTENDED. MAINTENANCE REPLACED THE NOSE GEAR HYDRAULIC MODULE AND THE NOSE GEAR LOCK ACTUATOR. NOSE GEAR RETRACTED AND EXTENDED NORMALLY ON GEAR SWING PER BOEING MM. REF ASAA9537.