As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PHL - FLT 577 - ON GEAR EXTENSION FOR LANDING, CREW RECEIVED THREE GREEN LIGHTS AND THEN THREE RED LIGHTS. CREW EXECUTED A MISSED APPROACH AND CYCLED THE GEAR. ALL INDICATIONS APPEARED NORMAL AND THE FLIGHT LANDED WITHOUT FURTHER INCIDENT. MAINTENANCE FOUND THE GEAR HANDLE STIFF, AND LUBED THE GEAR HANDLE AND MICROSWITCH. (M)