71.   Even if your job search is being undermined at the reference-checking stage, the problem may be nothing more than human error.

72.   Engineers eventually traced the shutdown, which began during an early-morning maintenance procedure, to a combination of software bugs and human error.

73.   Failures in Chicago, Denver, Minneapolis, Houston and Dallas were attributed to human error.

74.   Far more often, a big mistake results from a series of small ones, made in hospitals that lack systems to prevent human error or compensate for it.

75.   Federal investigators explored whether mechanical failure, human error or terrorism was the cause.

76.   Four other teams looked at how the train was operated, the signals, the track conditions and the possibility for human error.

77.   From talking ballots for the blind to wheelchair accessible voting booths, the newest generation of voting machines on display Tuesday still lacked a microchip that prevents human error.

78.   Guevara blamed human error for the initial failure to issue a payment.

79.   He said it was caused by human error, and that nothing similar had happened before.

80.   He said the Fire Department was monitoring the painting job, but that it could not rule out human error.