Or "What is the cost of scrap due to operator error with the current interface?"

The intention was to reduce the possibility of operator error.

"At the moment," he said, "operator error is associated with a relatively small amount of incidents."

The same computer system was also used to change frequency 4 times daily, completely eliminating operator error.

The cause has been determined to have been operator error.

The vast majority of accidents (over 90 percent) were caused by operator error.

The common anecdotal explanation for these is simple operator error.

Oh, well, it's an operator error or a static discharge.

And that mistyped date was not the only operator error to be found in the data.

"All of our problems have been caused by operator error."