What was found
DURING CLIMB OUT THROUGH 10,000 FT, RECIEVED TRIPLE CHIME ACCOMPENIED BY MOMENTARY RED ECAM FOR ENGINE FIRE. UNABLE TO DISTINGQUISH WHICH ENGINE BEFORE WARNING WENT AWAY. UNEVENTFUL REMAINDER OF FLIGHT. COMPLIED WITH ENGINE FIRE WARNING ADJUSTMENT AND TEST IAW AMM 26-12-00-05-02. TESTED NORMAL. CLEARED ITEM , OK FOR SERVICE. THIS ITEM WAS AN INBOUND ITEM THAT WAS FACTED OUT, BUT ON THE NEXT FLIGHT THE CREW RETURNED TO THE GATE WITH A NR 2 ENGINE PNEUMATIC PROBLEM IAW WRI 36-10/8080. WHEN THE ENGINE WAS OPENED, MAINTENANCE DISCOVERED A SEPARATED PNEUMATIC DUCT AND SEVERAL BURNED WIRING HARNESSES.