Dirty Dozen of Human Factors

Human Factors Dirty Dozen (or, simply, the Dirty Dozen; hereinafter, the Dozen) is the twelve most common maintenance-related causes of human errors initially developed by Transport Canada.

Definitions

According to the FAA AC 120-72,

Dirty Dozen. The twelve most common maintenance-related causes of errors. These twelve causes are: (a) lack of communication, (b) complacency. (c) lack of knowledge, (d) distraction, (e) lack of teamwork, (f) fatigue, (g) lack of resources, (h) pressure, (i) lack of assertiveness, (j) stress, (k) lack of awareness, (l) norms

Components

These twelve causes are: (a) lack of communication, (b) complacency. (c) lack of knowledge, (d) distraction, (e) lack of teamwork, (f) fatigue, (g) lack of resources, (h) pressure, (i) lack of assertiveness, (j) stress, (k) lack of awareness, (l) norms.

Related concepts

• Human factors.

Related lectures

• Employee Resource Management Training.