What was found
THE LT CENTER EMERGENCY POWER SUPPLY UNIT FAILED DURING TEST. MAINTENANCE REPLACED THE LT CENTER EMERGENCY POWER SUPPLY UNIT AND BATTERY. OPERATIONAL TEST NORMAL.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
THE LT CENTER EMERGENCY POWER SUPPLY UNIT FAILED DURING TEST. MAINTENANCE REPLACED THE LT CENTER EMERGENCY POWER SUPPLY UNIT AND BATTERY. OPERATIONAL TEST NORMAL.