Podcast
Questions and Answers
What is considered a latent error in aviation maintenance?
What is considered a latent error in aviation maintenance?
- A mechanic cannot get a new locking device because the parts room is closed. (correct)
- A mechanic slips while using a wrench.
- A mechanic relies on memory instead of using a job card.
- A mechanic misreads a torque value.
What does a 'slip' refer to in the context of errors?
What does a 'slip' refer to in the context of errors?
- A good plan that was executed poorly. (correct)
- Deviating from regulations intentionally.
- An incorrectly selected work card for a job.
- A failure to follow standard procedures.
Which of the following statements about violations is true?
Which of the following statements about violations is true?
- It involves a direct deviation from safe practices. (correct)
- It indicates a good plan was followed poorly.
- It refers to a technical difficulty causing an error.
- It is a minor error that occurs inadvertently.
What is an example of an active error?
What is an example of an active error?
How many combinations exist for reassembling the given nut and bolt assembly?
How many combinations exist for reassembling the given nut and bolt assembly?
What is the 'Dirty Dozen' in the context of human factors training?
What is the 'Dirty Dozen' in the context of human factors training?
Which of the following best describes a mistake in aviation maintenance?
Which of the following best describes a mistake in aviation maintenance?
What best defines 'error' in the context of aviation maintenance?
What best defines 'error' in the context of aviation maintenance?
What is the impact of fatigue on aviation safety?
What is the impact of fatigue on aviation safety?
What does acute stress refer to?
What does acute stress refer to?
What does the 'Iceberg Model' represent in understanding human error?
What does the 'Iceberg Model' represent in understanding human error?
What is the primary purpose of the Maintenance Error Decision Aid (MEDA)?
What is the primary purpose of the Maintenance Error Decision Aid (MEDA)?
Which of the following best describes chronic stress?
Which of the following best describes chronic stress?
What usually happens when someone is fatigued?
What usually happens when someone is fatigued?
How can stress affect an individual's work performance?
How can stress affect an individual's work performance?
What are contributing factors in the context of event investigation?
What are contributing factors in the context of event investigation?
What does the process of event investigation mainly focus on?
What does the process of event investigation mainly focus on?
Which statement is true regarding the relationship between airlines and transportation safety?
Which statement is true regarding the relationship between airlines and transportation safety?
What is one of the main goals of identifying the Dirty Dozen causes of error?
What is one of the main goals of identifying the Dirty Dozen causes of error?
Which of the following is NOT part of the Dirty Dozen?
Which of the following is NOT part of the Dirty Dozen?
What does a lack of teamwork primarily lead to in a maintenance environment?
What does a lack of teamwork primarily lead to in a maintenance environment?
What is a common source of pressure in maintenance organizations?
What is a common source of pressure in maintenance organizations?
Complacency in a maintenance task can be attributed to which of the following?
Complacency in a maintenance task can be attributed to which of the following?
Which error often accompanies fatigue in maintenance settings?
Which error often accompanies fatigue in maintenance settings?
Which of the following best describes 'lack of knowledge' as a contributing factor?
Which of the following best describes 'lack of knowledge' as a contributing factor?
Distraction in the workplace can arise from which of the following?
Distraction in the workplace can arise from which of the following?
What does lack of assertiveness lead to in a maintenance environment?
What does lack of assertiveness lead to in a maintenance environment?
What is the primary reason for addressing the Dirty Dozen in human factors training?
What is the primary reason for addressing the Dirty Dozen in human factors training?
What does 'norms' refer to in the context of maintenance errors?
What does 'norms' refer to in the context of maintenance errors?
What is a likely impact of a lack of resources during maintenance?
What is a likely impact of a lack of resources during maintenance?
What is a common misconception regarding communication errors in maintenance?
What is a common misconception regarding communication errors in maintenance?
What psychological factor contributes to a mechanic's complacency?
What psychological factor contributes to a mechanic's complacency?
Flashcards
Violation
Violation
An unintentional action that deviates from safe practices, procedures, standards, or regulations.
Active Error
Active Error
An error that is a direct result of an individual's actions.
Latent Error
Latent Error
An underlying issue or condition that indirectly contributes to an error.
Mistake
Mistake
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Slip
Slip
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Dirty Dozen
Dirty Dozen
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To err is human
To err is human
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Reducing human error
Reducing human error
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Fatigue
Fatigue
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Stress
Stress
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MEDA (Maintenance Error Decision Aid)
MEDA (Maintenance Error Decision Aid)
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Iceberg Model
Iceberg Model
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Contributing Factors
Contributing Factors
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Corrective Actions
Corrective Actions
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Event Investigation
Event Investigation
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Lack of Teamwork
Lack of Teamwork
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Norms
Norms
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Pressure
Pressure
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Complacency
Complacency
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Lack of Knowledge
Lack of Knowledge
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Lack of Awareness
Lack of Awareness
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Lack of Resources
Lack of Resources
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Distraction
Distraction
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Lack of Assertiveness
Lack of Assertiveness
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Lack of Communication
Lack of Communication
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Communication Norms
Communication Norms
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Importance of Teamwork Communication
Importance of Teamwork Communication
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Dirty Dozen Corrective Action Plan
Dirty Dozen Corrective Action Plan
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Study Notes
Aviation Maintenance Human Error
- Aviation maintenance is improving, but reducing human error remains a key safety challenge.
- Maintenance tasks have significant complexity, with potentially numerous incorrect reassembly combinations for components like nuts and bolts.
- Errors are unintentional acts. Error types include: Slips – mistakes in execution of procedure, Mistakes – flawed plan or procedure selection, Violations – deviations form safe practices.
- Active errors are obvious events (e.g., falling from a ladder). Latent errors are underlying systemic issues that lead to active errors. (e.g., a broken ladder).
- Reporting latent errors is crucial for prevention.
- Common human error causes (the "Dirty Dozen") include communication failures, lack of teamwork, improper norms/practices, pressure, complacency, lack of knowledge & awareness, lack of resources, distraction, lack of assertiveness, fatigue, and stress.
Error Types and Contributing Factors
- Communication failures are among the most frequent errors. Consistent awareness of communication challenges is essential.
- Lack of teamwork refers to a group's failure to collaborate effectively toward common goals.
- Norms (unwritten procedures) are vital; good examples of shift turnover practices include clear task delegation and communication. (e.g., handover between Stefan and Klaus).
- Pressure in maintenance frequently stems from deadlines, self-imposed standards, or pressures from managers or coworkers. External and internal pressures can cause urgent situations that lead to fast-paced work and potential errors.
- Complacency involves overconfidence in familiar tasks, leading to inattention to safety. This can be exacerbated by automatic responses to tasks.
- Lack of Knowledge and Awareness can often be linked with failure to refer to manuals, not working collaboratively or communicating knowledge gaps, fatigue or distractions.
- Lack of Resources (tools, manuals, personnel) can create pressure and increase risk of errors.
- Distraction occurs from many sources (thoughts, noise, people, radio/phone) and should be accepted but addressed accordingly.
- Lack of Assertiveness: A worker who does not speak up when appropriate is more susceptible to problems and error.
- Fatigue: Both significant and acute fatigue situations can impede performance and cause errors– a key safety concern.
- Stress: Both short and long-term stress can negatively affect performance and should be managed.
Maintenance Error Decision Aid (MEDA)
- The "Iceberg Model" explains that most human errors (minor issues) are concealed; only the major issues (event) are visible.
- MEDA is a process to identify, document, understand, and correct contributing factors to maintenance events.
- Understanding contributing factors that lead to errors through analysis is key to preventing similar in the future.
- Corrective actions based on identified factors are crucial for continuous improvement.
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Description
This quiz explores the types of human errors in aviation maintenance, including slips, mistakes, and violations. It also delves into the factors contributing to these errors, emphasizing the importance of reporting latent errors for safety. Test your knowledge on the 'Dirty Dozen' causes of human error in the aviation industry.
