As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
APPROXIMATELY 2 HOURS AFTER DEPARTURE, THE CONFIGURATION LIGHT ILLUMINATED AND THE CREW RECEIVED THE EICAS MESSAGE 'FLAPS'. FLIGHT RETURNED TO PHL AND LANDED WITHOUT FURTHER INCIDENT. MAINTENANCE TRIED THE BITE ON THE PSEU AND RECEIVED NO RESPONSE. THE PSEU WAS REPLACED. (M)