Complication rates are greater when the procedure is performed by an inexperienced operator, in unsterile conditions, or when the child is at an older age.

The teleprompter was operational, but an inexperienced operator accidentally fast-forwarded through the script, leaving Collins with no choice but to ad-lib most of his script.

Tokaimura nuclear accident (Japan) - 1999, three inexperienced operators at a reprocessing facility caused a criticality accident; two of them died.

A major problem with the European trials is they allowed inexperienced operators to place stents, while the surgeons performing CEA were very experienced.

The amount is attributed to both inexperienced operators and the amount of "obstacles" along the route.

The radial arm saw can be less safe when used by an inexperienced or untrained operator, but is not as dangerous when used properly.

Recently, the larger passenger versions have appeared in news stories for having a tendency to roll over, particularly in the case of inexperienced operators.

Safety officials said the powerful mixture of inexperienced young operators and a search for waterborne thrills was a major cause of harm.

Edmonds was a relatively inexperienced operator who had tried for several years to get the job and was happy to have received it.

Women who are poor go to a worse clinic with an inexperienced operator.