What was found
AIRCRAFT IN BASE MAINTENANCE: INOPERATIVE EMERGENCY POWER SUPPLY UNIT 10WL ONE PASSENGER CABIN. REMOVED AND REPLACED EMERGENCY POWER SUPPLY UNIT 10WL ON FORWARD PASSENGER CABIN.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
AIRCRAFT IN BASE MAINTENANCE: INOPERATIVE EMERGENCY POWER SUPPLY UNIT 10WL ONE PASSENGER CABIN. REMOVED AND REPLACED EMERGENCY POWER SUPPLY UNIT 10WL ON FORWARD PASSENGER CABIN.