Narrative:

During the flight I was called by a flight attendant; who notified me that there had been an explosion in the coach cabin. I brought the relief pilot back up from break and went back to check on the situation. By then there was no smoke; and I determined that no one was injured. It appears that a battery had been the item that went off. We found pieces of it in the area. There was no damage to the aircraft (with the exception of a seat cushion) and no one was hurt; so I decided to proceed to destination. The remainder of the flight was uneventful.callback conversation with reporter revealed the following information: reporter stated they were unable to determine what kind of device the battery had come from; since no passenger would take responsibility for owning the device and/or battery.

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Original NASA ASRS Text

Title: ACR CAPT RPTS A BATTERY EXPLODED IN THE CABIN ON A FLT FROM SOUTH AMERICA RESULTING IN SMOKE IN THE CABIN. FLT CONTINUED TO DEST.

Narrative: DURING THE FLT I WAS CALLED BY A FLT ATTENDANT; WHO NOTIFIED ME THAT THERE HAD BEEN AN EXPLOSION IN THE COACH CABIN. I BROUGHT THE RELIEF PLT BACK UP FROM BREAK AND WENT BACK TO CHK ON THE SITUATION. BY THEN THERE WAS NO SMOKE; AND I DETERMINED THAT NO ONE WAS INJURED. IT APPEARS THAT A BATTERY HAD BEEN THE ITEM THAT WENT OFF. WE FOUND PIECES OF IT IN THE AREA. THERE WAS NO DAMAGE TO THE ACFT (WITH THE EXCEPTION OF A SEAT CUSHION) AND NO ONE WAS HURT; SO I DECIDED TO PROCEED TO DEST. THE REMAINDER OF THE FLT WAS UNEVENTFUL.CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: RPTR STATED THEY WERE UNABLE TO DETERMINE WHAT KIND OF DEVICE THE BATTERY HAD COME FROM; SINCE NO PAX WOULD TAKE RESPONSIBILITY FOR OWNING THE DEVICE AND/OR BATTERY.

Data retrieved from NASA's ASRS site as of January 2009 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.