As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 6480 DCA-LGA - INBOARD FLAPS WOULD NOT RETRACT AFTER TAKEOFF FROM DCA, DIVERTED TO BALTIMORE WASHINGTON INTERNATIONAL AIRPORT. REPLACED RIGHT INBOARD FLAP JACKSCREW CARRIAGE BEARING FOR ELEPHANT EAR, REPLACED INBOARD JACKSCREW END CAP, OPERATIONAL CHECK NORMAL PER MM 27-51-27. (M)