What was found
EMERGENCY LIGHTS TEST FAILED WITH MESSAGE 'EPSU INT LOADS AFT LEFT. REPLACED EPSU BATTERY AT AFT POSITION. EMER LIGHTS TEST AT PTC PANEL OKAY.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
EMERGENCY LIGHTS TEST FAILED WITH MESSAGE 'EPSU INT LOADS AFT LEFT. REPLACED EPSU BATTERY AT AFT POSITION. EMER LIGHTS TEST AT PTC PANEL OKAY.