What was found
PIT - THE AFT EMERGENCY POWER SUPPLY UNIT FAILED TEST. MAINTENANCE REPLACED THE AFT EMERGENCY POWER SUPPLY UNIT. OPERATIONALLY CHECKS OK.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
PIT - THE AFT EMERGENCY POWER SUPPLY UNIT FAILED TEST. MAINTENANCE REPLACED THE AFT EMERGENCY POWER SUPPLY UNIT. OPERATIONALLY CHECKS OK.