What was found
DURING NON-ROUTINE CHECK, FOUND THE EMERGENCY POWER SUPPLY UNIT FAULTED AT 10WL. MX REPLACED POWER SUPPLY UNIT AND FUNCTIONAL CHECK WAS NORMAL. ACFT RETURNED TO SERVICE.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
DURING NON-ROUTINE CHECK, FOUND THE EMERGENCY POWER SUPPLY UNIT FAULTED AT 10WL. MX REPLACED POWER SUPPLY UNIT AND FUNCTIONAL CHECK WAS NORMAL. ACFT RETURNED TO SERVICE.