What was found
AIRCRAFT WAS IN BASE MAINTENANCE: WIRELESS EMERGENCY LIGHTING INOP AT DOOR 4R. MAINTENANCE REMOVED AND REPLACED EMERGENCY LIGHTING WELS BATTERY UNIT AT DOOR 4R IAW B787 AMM 33-51-07.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
AIRCRAFT WAS IN BASE MAINTENANCE: WIRELESS EMERGENCY LIGHTING INOP AT DOOR 4R. MAINTENANCE REMOVED AND REPLACED EMERGENCY LIGHTING WELS BATTERY UNIT AT DOOR 4R IAW B787 AMM 33-51-07.