During a flight over New Jersey on May 6, 1937, the enormous German airship Hindenburg suddenly engulfed in flames while attempting to dock with its mooring tower. The airship plummeted to the ground in front of terrified onlookers, and in the 32 seconds it took for the zeppelin to be entirely incinerated, 35 people on the airship and one member of the ground crew died.
Although a spark of static electricity is assumed to be the cause of the fire, no consensus has been achieved on the subject. Moreover, there should never have been a fire in the first place. The original concept of the infamous disaster included filling the zeppelin with non-flammable helium gas, which the United States had a ban on exporting. German engineers had constructed it this way in the hope that the United States would withdraw the restriction, but when that didn't happen, the design was revised to use the flammable hydrogen as the filling gas, which is much easier to obtain and increased the ship's lift, allowing it to carry additional passengers cabins. Then, after 62 successful flights, the tragedy would follow.