41.   Investigators have determined that a fire in the cargo hold, caused by oxygen generators, brought the plane down.

42.   It is new and in perfect shape but the accident forced the crew to cut off power to the entire module, including the oxygen generator.

43.   It would have helped if the industry had a higher awareness of the hazards of oxygen generators, but airlines do not always share what they know.

44.   Later, they will install computers and set up networks, start the oxygen generator and carbon dioxide removal system and turn on equipment throughout the station.

45.   Most of the problems the Mir has faced this year, like oxygen generators that have failed and docking mistakes, have happened dozens of times in the past.

46.   Nearly every plane has oxygen generators on board.

47.   NTSB investigators are searching for more evidence that could help determine whether the aircraft wheels and oxygen generators in the cargo hold together caused the fire.

48.   One FAA official said he knew of another accident involving an oxygen generator that self-ignited.

49.   Oxygen generators are a category two hazard.

50.   Oxygen generators that were stored in a cargo hold are suspected of causing the fire.