JS> With the Billions of hours of Boeing aircraft flights
  > how many fuel tank explosions have there been. I have
  > 4,000 hours in B-52s and other Boeing experience.
  > B-17, B-29, B-50s, KC-97 and do not ever remember a
  > fuel tank explosion... except due to flak or cannon
  > fire...
The Wisconsin Guard or Reserve (I'm not sure which) lost a KC-135 a
couple years ago.  It was on the ground and they were doing some
maintenance work on it when a fuel tank exploded. There were a few
fatalities.  The probable cause was cited as a spark, from a fuel pump
or a quantity gauge, in the fuel tank.
                                                George
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