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