EASA subject
Human Factors
Fatigue, stress, vision
The exam covers more than technical knowledge — you must understand how the body and mind perform during flight.
Key concepts
- Fit to fly
- Sleep, medication, alcohol, and stress — assess before every flight.
- Fatigue
- Microsleep, slower reaction times, and increased error probability.
- Vision for VLOS
- Central vision covers only ~2–5%; active scanning is essential.
Common mistakes
- Using caffeine as a substitute for rest
- Assuming automatic functions replace manual skills
Exam traps
- Blood alcohol limits
- Types of colour blindness
- Overlearning vs complacency
Real-world example
A pilot loses VLOS after a sleepless night — an incident that could have been avoided by postponing the flight.