11.   Engineers found a foot-long dent in a fuel line that circulates hydrogen to the three engines.

12.   Engineers found later that two in a string of several dozen batteries had failed, probably months before.

13.   However, immediately afterwards, Ecopetrol engineers found evidence of another attack close by.

14.   IBM engineers have found a way to embed an ultrathin layer of insulating material just under the surface of a silicon wafer.

15.   In testing the river for poisons, an environmental engineer also found human sewage he said was coming from improperly working septic tanks upriver.

16.   Japanese engineers recently found an effective way to separate the hydrogen and oxygen molecules in water using light.

17.   On closer examination, California engineers found that the system was designed not to work.

18.   On closer examination, California engineers found the system was designed not to work.

19.   Now an engineer has found a way to use voice recorders to prevent crashes.

20.   The FAA was also told of the Newark incident, but its engineers similarly found nothing remarkable.