What was found
PHL - THE DOOR R3 EMERGENCY POWER SUPPLY UNIT (EPSU), FIN 16WL, FAILED THE EMERGENCY LIGHTS TEST. MAINTENANCE REPLACED EPSU, FIN 16WL, ABOVE DOOR R3. OPERATIONALLY CHECKS OK.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
PHL - THE DOOR R3 EMERGENCY POWER SUPPLY UNIT (EPSU), FIN 16WL, FAILED THE EMERGENCY LIGHTS TEST. MAINTENANCE REPLACED EPSU, FIN 16WL, ABOVE DOOR R3. OPERATIONALLY CHECKS OK.