As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: EMERGENCY POWER SUPPLY UNIT FORWARD LEFT AND EMERGENCY POWER SUPPLY UNIT AFT LEFT FAULT FOUND WHILE PERFORMING JOBCARD 26L00005005. REMOVED AND REPLACED FORWARD LEFT EMERGENCY POWER SUPPLY UNIT (AALA202403202926) AND AFT LEFT EMERGENCY POWER SUPPLY UNIT.