As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DCA - MAINTENANCE REPORTED THE EMERGENCY AISLE LIGHT, BENEATH THE OVERHEAD BIN AT SEAT ROW 22DEF, WAS INOPERATIVE. MAINTENANCE REMOVED AND REPLACED A BAD FUSE ON EMERGENCY EXIT BATTERY PACK M1137. REMOVED AND REPLACED FUSE. OPERATIONAL CHECK GOOD REF MM 33-51-02.