What was found
DURING EMERGENCY LIGHT TEST, RECEIVED EPSU INT LOAD AFT L MESSAGE. MAINTENANCE REPLACED BATTERY PACK AND POWER SUPPLY, OPERATIONAL CHECK OK.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
DURING EMERGENCY LIGHT TEST, RECEIVED EPSU INT LOAD AFT L MESSAGE. MAINTENANCE REPLACED BATTERY PACK AND POWER SUPPLY, OPERATIONAL CHECK OK.