What was found
AIRCRAFT WAS IN BASE MAINTENANCE: INOP EPSU EMERGENCY POWER SUPPLY UNIT 11WL IN PASSENGER CABIN. REPLACED EPSU EMERGENCY POWER SUPPLY UNIT 11WL IN PASSENGER CABIN.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
AIRCRAFT WAS IN BASE MAINTENANCE: INOP EPSU EMERGENCY POWER SUPPLY UNIT 11WL IN PASSENGER CABIN. REPLACED EPSU EMERGENCY POWER SUPPLY UNIT 11WL IN PASSENGER CABIN.