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ACS Knowledge Area

Human Factors

Human factors account for the majority of aviation accidents. This topic covers the physiological challenges of flight (hypoxia, spatial disorientation, decompression sickness), the psychological aspects of aeronautical decision-making (ADM), crew resource management (CRM), hazardous attitudes, and how to recognize and mitigate human error in the cockpit.

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What You'll Study

10 subtopics covered in the Human Factors knowledge area

Hypoxia and oxygen requirements
Spatial disorientation
Vision limitations and illusions
Carbon monoxide poisoning
Fatigue and stress effects
Aeronautical Decision Making (ADM)
Crew Resource Management (CRM)
Hazardous attitudes (PHAK model)
Alcohol and medication rules
Fitness for flight (IMSAFE checklist)

FAA Source Material

Official FAA publications referenced in this topic area

PHAK Chapter 17 — Aeromedical Factors

Referenced in AviaSkill question explanations

PHAK Chapter 2 — Aeronautical Decision-Making

Referenced in AviaSkill question explanations

Sample Questions

Example questions from the Human Factors topic area

What are the symptoms of hypoxia and at what altitude does it become a concern?

What is the IMSAFE checklist used for?

How long after consuming alcohol must you wait before flying?

AviaSkill includes hundreds of questions in Human Factors with AI-powered explanations and FAA handbook references for every answer.

Related Resources

Study Guide

Human Factors Study Guide

Key concepts, common mistakes & tips

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