What was found
DCA - MAINTENANCE REPORTED THE AFT LEFT-HAND EPSU FAULTED INTERNALLY. MAINTENANCE REMOVED AND REPLACED THE AFT LEFT-HAND EPSU. OPERATIONAL CHECK GOOD.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
DCA - MAINTENANCE REPORTED THE AFT LEFT-HAND EPSU FAULTED INTERNALLY. MAINTENANCE REMOVED AND REPLACED THE AFT LEFT-HAND EPSU. OPERATIONAL CHECK GOOD.