11.   The report concluded that the accident was caused by human error.

12.   ...an ever-growing risk of human error.

13.   We might eliminate the more than ninety percent of traffic crashes that are caused by human errors such as misjudgments and inattention.

14.   Human error often proves to be a major contributor to overall levels of risk and many deserve specific consideration.

15.   Human error identification techniques include task analysis or reference to checklists of potential human errors.

16.   This appendix is a list of some causes of human errors.

17.   The intention is to give an appreciation of causes of human errors so that the reasons behind safe operation and design practices can be appreciated.

18.   Where it cannot be entirely eliminated, human error must be made evident or difficult.

19.   The enumerators were amateurs who made mistakes and sometimes misunderstood their instructions, and human errors occurred when the original schedules were copied onto the printed forms.