What was found
DURING A-CHECK THE EPSU INT LOAD FWD L MESSAGE ON CIDS. REPLACED EMERGENCY POWER SUPPLY UNIT (EPSU) 31-3350-9-0001 S/N 04111.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
DURING A-CHECK THE EPSU INT LOAD FWD L MESSAGE ON CIDS. REPLACED EMERGENCY POWER SUPPLY UNIT (EPSU) 31-3350-9-0001 S/N 04111.