FAA Aviation Mechanic General (AMG)Regulations, Records and Human FactorsMedium
A technician going through a difficult divorce finds himself unable to concentrate on a wiring diagram and installs a connector backward, though he is well-rested and not being rushed by anyone. Which Dirty Dozen factor best describes this situation?
- APressure
- BDistraction
- CFatigue
- DStress
Show answer & explanationAnswer & explanation
Correct answer: D. Stress
Stress is mental, emotional, or physical strain (often from personal issues) that reduces a person's ability to perform tasks accurately, distinct from physical tiredness (fatigue) or externally imposed deadlines (pressure).
Why the other options are wrong
- A. Pressure requires an external demand, which is absent here.
- B. Distraction is a brief external interruption, not an ongoing internal emotional condition.
- C. Fatigue is ruled out because the technician states he is well-rested.
Stress (Dirty Dozen)
A human factor describing physical, mental, or emotional strain—often from personal life or workplace issues—that degrades performance and decision-making.
- Can be acute (short-term) or chronic (long-term)
- Personal life stress can carry over into the workplace
- Reduces concentration and increases error rate
Memory trick: 'Stress fogs the mind' even without a deadline or lack of sleep.