As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTED A FLAPS FAIL AT 8 DEGREES DURING DESCENT INTO DCA. CREW ELECTED TO DECLARE AN EMERGENCY AND LANDED WITHOUT INCIDENT. MAINTENANCE INTERROGATED THE FECU, BITE CHECK AND SKEW DETECTOR. MAINTENANCE RESET THE FLAP CHANNELS IN ACCORDANCE WITH THE AIRCRAFT MAINTENANCE MANUAL. OPERATIONAL CHECKS WERE GOOD. AIRCRAFT WAS RELEASED FOR SERVICE.