What was found
DURING LINE MAINTENANCE, THE CABIN EMERGENCY LIGHTS TEST FAULTS THE AFT LEFT BATTERY PACK. REPLACED BATTERY PACK, OPERATIONAL CHECK OK.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
DURING LINE MAINTENANCE, THE CABIN EMERGENCY LIGHTS TEST FAULTS THE AFT LEFT BATTERY PACK. REPLACED BATTERY PACK, OPERATIONAL CHECK OK.