What was found
DURING NON-ROUTINE CHECK, FOUND EMERGENCY SYS TEST MESSAGE OF EPSU BATTERY FAULT ON THE LEFT. MX REPLACED EPSU BATTERY AT 11WL AND FUNCTIONAL CHECK WAS NORMAL.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
DURING NON-ROUTINE CHECK, FOUND EMERGENCY SYS TEST MESSAGE OF EPSU BATTERY FAULT ON THE LEFT. MX REPLACED EPSU BATTERY AT 11WL AND FUNCTIONAL CHECK WAS NORMAL.