Narrative:

At FL310, received ECAM (system) warning of engine fire, but warning was only partial and incomplete. Shortly after verifying there was no engine fire warning, switched to dual engine failure. Again, only a partial warning. Obvious erroneous warning as both engines were running fine. Shortly later, another warning for avionics smoke was received. Both captain and first officer were not sure if we could smell smoke or not, but there was enough doubt that we elected to divert to ind and land. Avionics smoke procedure was accomplished. Very slight overweight landing uneventful, other than ATC declared emergency for us due to possibility of smoke. Maintenance found faulty flight warning computer.

Google
 

Original NASA ASRS Text

Title: A320 FLC DECLARES EMER, DIVERTS TO IND.

Narrative: AT FL310, RECEIVED ECAM (SYS) WARNING OF ENG FIRE, BUT WARNING WAS ONLY PARTIAL AND INCOMPLETE. SHORTLY AFTER VERIFYING THERE WAS NO ENG FIRE WARNING, SWITCHED TO DUAL ENG FAILURE. AGAIN, ONLY A PARTIAL WARNING. OBVIOUS ERRONEOUS WARNING AS BOTH ENGS WERE RUNNING FINE. SHORTLY LATER, ANOTHER WARNING FOR AVIONICS SMOKE WAS RECEIVED. BOTH CAPT AND FO WERE NOT SURE IF WE COULD SMELL SMOKE OR NOT, BUT THERE WAS ENOUGH DOUBT THAT WE ELECTED TO DIVERT TO IND AND LAND. AVIONICS SMOKE PROC WAS ACCOMPLISHED. VERY SLIGHT OVERWT LNDG UNEVENTFUL, OTHER THAN ATC DECLARED EMER FOR US DUE TO POSSIBILITY OF SMOKE. MAINT FOUND FAULTY FLT WARNING COMPUTER.

Data retrieved from NASA's ASRS site as of July 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.