What was found
THE EMERGENCY LIGHTS WOULD NOT TEST. MAINTENANCE REPLACED THE LEFT HAND, MID CABIN EMERGENCY POWER SUPPLY UNIT AND BATTERY. OPERATIONALLY CHECKS OK.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
THE EMERGENCY LIGHTS WOULD NOT TEST. MAINTENANCE REPLACED THE LEFT HAND, MID CABIN EMERGENCY POWER SUPPLY UNIT AND BATTERY. OPERATIONALLY CHECKS OK.