As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PHL FLT 734 EN-ROUTE PHL TO MAN. DURING CLIMBOUT FROM PHL, THE CREW RECEIVED AN ASYMMETRICAL TRAILING EDGE FLAP DISAGREE MESSAGE. THE CREW DECIDED TO RETURN TO FIELD IN PHL. THE FLIGHT LANDED WITHOUT FURTHER INCIDENT. MAINTENANCE REPLACED A LEFT WING OUTBOARD FLAP BEARING ASSEMBLY.