Narrative:

A flight attendant called and reported a loud bang or pop in the aft galley. We asked if they could smell any fumes or see any smoke. They said no and said they would call us back if they could; and that they would try to figure out what it was. We said we had no unusual indications of any problem. They later called us back and reported that they found a shattered [cigarette] lighter. It was on a food tray inside a food insert that had been warming in an oven in the aft galley. Apparently the heat from the oven expanded any air/gas in the lighter and popped it.

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Original NASA ASRS Text

Title: During climbout on a B767; the flight attendants reported hearing a loud noise in the aft galley. Upon investigation; they found that a cigarette lighter had been left on a tray that was warming in the oven; and had burst.

Narrative: A Flight Attendant called and reported a loud bang or pop in the aft galley. We asked if they could smell any fumes or see any smoke. They said no and said they would call us back if they could; and that they would try to figure out what it was. We said we had no unusual indications of any problem. They later called us back and reported that they found a shattered [cigarette] lighter. It was on a food tray inside a food insert that had been warming in an oven in the aft galley. Apparently the heat from the oven expanded any air/gas in the lighter and popped it.

Data retrieved from NASA's ASRS site as of July 2013 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.