What was found
PHL - THE MID CABIN, LEFT EMERGENCY POWER SUPPLY UNIT WAS FAULTING DURING TEST. MAINTENANCE REPLACED THE MID CABIN, LEFT EMERGENCY POWER SUPPLY UNIT. (M)
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
PHL - THE MID CABIN, LEFT EMERGENCY POWER SUPPLY UNIT WAS FAULTING DURING TEST. MAINTENANCE REPLACED THE MID CABIN, LEFT EMERGENCY POWER SUPPLY UNIT. (M)