Human Error and Reliability

Question 1

Pilot judgement:

Name the type of judgement:

This comprises learned skills involving visual perceptions such as judging distance, height or an approach to land. Once the skill has been learned it becomes almost automatic requiring very little thought.

Answer 1

Perceptual judgement

Question 2

Pilot judgement:

Name the type of judgement:

This is a far more complex process in that it involves thinking. This means taking information from a variety of sources , evaluating it and responding with a course of action. Inevitably the process requires time, there may be alternative courses of action and risk assessment is not easy. To make matters worse, this type of judgement is affected by factors which include stress and fatigue.

Answer 2

Cognitive judgement

Question 3

Decision Making:

Good decision making required the following(5):

Answer 3

1. Information
2. Facts
3. Alternatives
4. Action
5. Follow-up

Question 4

The type of error:

Error of omission - failing to do something which should be done, e.g. forgetting to lock the door on the way out.

Error of commission - doing something that should not be done, e.g. putting diesel in your tank instead of petrol

Random error - mistakes which do not follow a regular pattern

Systematic error - mistakes which do follow a regular pattern

Answer 4

Functional error

Question 5

The type of error:

Memory lapses, poor judgement, incorrect reasoning and divided attention.

Answer 5

Cognitive error