Human Factor

Question 1

What is the goal of the maintence Error decision aid (MEDA)?

Answer 1

is to investigate errors, understand root causes, prevent and mange accidents. (most of the factors that contribute to an error can be managed).

Question 2

What is an Active failure?

Answer 2

Is one in which the effects are immediate

Question 3

What is an Latent Failure?

Answer 3

Occur as a result of a decision made or action taken long before the incident or accident actually occurs.

Question 4

Whats another concept of investigating and evaluating maintenance errors?

Answer 4

The “SHEL” Model. The SHEL represents software, hardware, environment and liveware, with the human as the starting point

Question 5

Human error is defined as what?

Answer 5

Human error is defined as human action with unintended consequences, also is the study of how people interact with thier envirement.

Question 6

What are the magnificent Seven?

Answer 6

1- We worl to accentuate the positive and eliminate the negative. 2- safety is not a game because the price of losing is too high 3- just for today Zero error 4- We all do our part to prevent Murphy from hitting the jackpot 5-our signature is our word and more precious than gold 6- we are all part of the team 7- we always work with safty net.

Question 7

what are the three human error definition?

Answer 7

Omission: not performing an act or task
Commission: accomplishing a task incorrectly
Extraneous: Performing a task not authorized.

Question 8

What is the percentage of accident result of human error?

Answer 8

Approximately 75-80 percent

Question 9

what are the consequences of human error?

Answer 9

1- Little or no effect 2- Damage to equipment/Hardware 3- Personal injury 4- Catastrophic.

Question 10

What are the Dirty dozen?-

Answer 10

1- Lack of communication, 2- Complacency 3- Lack of knowledge 4- Distraction 5- Lack of Team work 6- Fatigue 7-Lack of resources 8- Pressure 9- Lack of assertiveness 10- stress 11- lack of awarness 12- Norms

Question 11

List of human factor that effect AMTs (Mechanic)?

Answer 11

Boring repetitive jobs- Loud noise -Poor training -Fatigue -Substance abuse .

Question 12

What are the element of Human Fators?

Answer 12

Clinical psychology 2- Exprimental psychology 3- Anthropometry 4- Computer science 5-Cognitive science 6-Safety Engineering, 7-Medical science 8- Organizational psychology 9- Educational psychology 10- Industrial Engineering

Question 13

Example of common maintenance Errors

Answer 13

Incorect installation of components. 2- Fitting the worng parts 3- Electrical wiring discrepancies to include crossing connection 4- forgotten tool and part 5- failure to lubricate 6- faillure to secure access panels, fairing, or crowling 7- fuel or oil caps and fuel panels not secured 8- failure to remove lock pin