What was found
EPSU BATTERY EMER L' MESSAGE DISPLAYED ON CIDS SCREEN WHEN PERFORMING CABIN EMERGENCY LIGHTING TEST PER NR 3 SERVICE. REPLACED BATTERY PACK & POWER SUPPLY.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
EPSU BATTERY EMER L' MESSAGE DISPLAYED ON CIDS SCREEN WHEN PERFORMING CABIN EMERGENCY LIGHTING TEST PER NR 3 SERVICE. REPLACED BATTERY PACK & POWER SUPPLY.