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Human Factors in Aviation Maintenance Dirty Dozen

In: Business and Management

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Dirty Dozen

Twelve of the most common human factors that are related to aircraft accidents or incidents are called the Dirty Dozen. These factors have been identified to affect people and make them to make the poor decisions. The concept of the Dirty Dozen was created in 1993 by Gordon Dupont, he was working for Transport Canada during this time, while he was creating a training program on human factors in aviation. It is now recognized as the foundation of the aviation industries human factor in aviation maintenance. (Adams, 2009)

Lack of communication

This is one of the more important parts of the Dirty Dozen. Communications are a two way street that has to do with the person who is giving the communications to the person receiving the communications. During verbal instruction it is common the as little as 30% of a message is received.
It is safe practice to keep important messages written down so there is not a lack of communications. Some maintenance outfits use log books so that other shifts can refer back to what was done and by who. Verbal messages need to be relatively short with key things being emphasized on. As a person that is getting instructions it is very important no to assume anything and to have things clarified. (Adams, 2009)


Distractions are anything that can take the attention of a person during a task. There are distraction during work that cannot be removed and heave to be worked with. Noises are a key distraction in the workplace that cannot be solved. Many distractions are avoidable or can be dealt with at a more acceptable time. Some examples are if this are social conversations, shift patterns, administrative tasks, meeting dates, and leave entitlement. Some psychologist have said that distractions are the key to forgetting things. It is a common tendency for humans to think ahead of…...

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