As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PHL - FLT 1572 EN ROUTE MCO TO PHL. DURING THE APPROACH INTO PHL, THE NLG FAILED TO EXTEND NORMALLY. THE ALTERNATE EXTENSION METHOD WAS USED TO EXTEND THE NLG. THE FLIGHT LANDED WITHOUT FURTHER INCIDENT. MAINTENANCE REPLACED THE NOSE LANDING GEAR LOCK ACTUATOR.