As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ECAM NR 1 ENG EIU DISPLAYED DURING CRUISE. LOST BOTH AIR CONDITIONING PACKS. EIU REMOVED TO SFO HOME SHOP. UNIT TESTED NO FAULTS FOUND. CCOA 0-4499 ACCOMPLISHED 1/29/2004 PER SB 395798-73-004 AS RECOMMENDED BY AIRBUS TFU 73.25.00.019. FLEET ENGINEERING SETTING UP A PROJECT TO ACCOMPLISH AIRBUS SB A320-21-1121.