things don't always go the way that we want them to do they in aviation it's not as easy to pull over the side of the road if something goes wrong that's why we study human factors this presentation we'll look at the 12 primary contributing factors that affect Human Performance and cause error in aviation maintenance most Revenue Service flights happen during the daytime which means that aviation maintenance usually occurs during the night When people's performance is typically at a low point the problem with fatigue is that as Aviation professionals we tend to overestimate our ability to deal with it and underestimate the problem when we are lacking the correct resources such as tools Parts financial resources or knowledge the Temptation is to take a shortcut to get the job done at all costs this is usually done by bypassing regulations or procedures in accordance with the way that the maintenance manual States we lead busy lives and often there's many things that happen each day that sometimes take our attention away from the task at hand distraction is one of the killers as distraction is the leading cause for forgetting a task the key to dealing with distraction is to recognize you've been distracted and to double check your work we deal with a lot of pressure each and every single day things like deadlines key performance indicators or financial targets sometimes put an immense amount of pressure on us that can lead us into a position where we're not aware what's going on around us ensuring that quality and safety are always put first is critical sometimes we're put into situations where we're unsure or afraid to speak our minds in a way that communicates our feelings opinions concerns beliefs and needs in a positive and productive manner we need to make sure that at all times we do not compromise our own standards a lot of the work that is done in aviation are team Affairs no single person can be responsible for the safe outcome of all tasks however if somebody is not contributing to the team effort this can lead to unsafe conditions this means that workers must rely on colleagues to make sure that work is done safely and effectively often we have procedures that are agreed upon by the majority of a group but are not documented these referred to as Norms the danger worth Norms occurs when they detract from an established safety or quality standard this can present a risk to Aviation standards quality and airworthiness the human body is fascinating it will naturally respond to events of the recent past or anticipated events of the near future subconsciously danger comes when it seems to be no escape from events such as family illness financial difficulty or relational issues which seem that there's no escape from sometimes we fall into a situation where we have a sense of self-satisfaction but accompanied by a lack of awareness of the danger this is referred to as complacency complacency can result from overconfidence stress pressure boredom or many other factors as well if we don't have the resources that we need to perform a task correctly such as tools manuals parts then the Temptation is to do what we can to complete the job regardless whether or not we have the right material there's an obvious quality and airworthiness risk if we try to accomplish a task with a lack of resources poor communication is one of the most common but also one of the most critical human factors elements and it is estimated that only about 30% of message content is received and understood correctly this needs to be taken into account whenever we try to communicate with other co-workers customers or colleagues sometimes when we're not Vigilant we lose focus on the effect our actions may have on others if we create a quality or safety risk it is our responsibility to make sure that we educate other people in the future that may come across that risk that it exists this can be done with signs Passover logs or other information these 12 primary contributing factors to human error are known in the aviation world as The Dirty Dozen The Dirty Dozen were developed by Gorge Dupont in the early 9s as a method to improve human awareness about their interactions in aviation maintenance I hope that you have enjoyed this brief introduction to human factors thank you created using punon