1.   The FAA said the airline had loaded kerosene and other flammable fuel on a passenger flight from Anchorage to Kotzebue, Alaska.

2.   These include using less flammable fuel and pumping inert gases into fuel tanks to minimize vapors.

3.   They were headed from the East Coast to California, ensuring that their tanks would be filled with thousands of gallons of highly flammable fuel.

4.   A year ago, the NTSB recommended to the FAA that steps be taken to ensure that center fuel tanks are not left filled with highly flammable fuel vapor.

5.   The highly flammable fuel could be seen in a NASA videotape, streaming out in large, white clouds of gas and dissipating into the air.

6.   The planes were each on cross-continental routes, and thus carrying a heavy load of flammable fuel.

7.   The super-cold, highly flammable fuel could be seen in a NASA videotape, streaming out in large, white clouds of gas and dissipating into the air.

8.   The super-cold, highly flammable fuel could be seen, in a NASA videotape, streaming out in large, white clouds of gas and dissipating into the air.

9.   Initial reports said the truck was carrying a load of flammable fuel, but police later said it was a tractor-truck without a trailer.