What was found
PIT - AN 'EPSU BATT EMER R' MESSAGE CAME ON DURING THE EMERGENCY LIGHTS TEST. REPLACED RIGHT EMERGENCY POWER SUPPLY UNIT BATTERY. OPERATIONALLY CHECKED OK. (M)
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
PIT - AN 'EPSU BATT EMER R' MESSAGE CAME ON DURING THE EMERGENCY LIGHTS TEST. REPLACED RIGHT EMERGENCY POWER SUPPLY UNIT BATTERY. OPERATIONALLY CHECKED OK. (M)