Which human factors concepts are commonly considered in investigations?

• A. Situational Awareness, Decision Making, Workload, Fatigue, Training, Procedures, and Crew Coordination
• B. Weather Conditions
• C. Engine Maintenance and Fuel Quality
• D. Marketing and Branding

Answer: (A)

Investigations into human factors look at how people perceive, understand, decide, and act within the aviation system, and how cognitive and teamwork aspects affect safety. The most relevant concepts include:

Situational awareness — staying aware of the aircraft’s state, position, and environment, and anticipating what may happen next. Loss or degradation of situational awareness is a common thread in many incidents because it delays detection of problems and appropriate responses.

Decision making — how pilots and crew assess risks, weigh options, and choose actions under time pressure or uncertainty. Stress, bias, and information overload can influence these choices.

Workload — the amount and pace of demands on attention and effort. Both excessive and insufficient workload can impair performance, leading to mistakes or missed cues.

Fatigue — reduced alertness and cognitive function from insufficient or disrupted sleep, which can slow reaction time and impair judgment.

Training — adequacy and effectiveness of the knowledge and skills needed to perform tasks safely, including scenario-based decision making and emergency procedures.

Procedures — clarity, accessibility, and adherence to standard operating procedures; unclear or conflicting procedures can contribute to errors.

Crew coordination — how well crew members communicate, share mental models, and coordinate actions to achieve safe outcomes; effective teamwork reduces the likelihood of miscommunication and errors.

Weather conditions, engine maintenance and fuel quality, and marketing and branding are separate factors in investigations (environmental/maintenance/organizational aspects, or unrelated business considerations). The listed human factors concepts are the ones most commonly evaluated for safety implications.