Contributor to Human Error in Aviation: Fatigue
Fatigue is a significant contributor to human error in aviation and poses a serious threat to aviation safety. Fatigue refers to the physiological state of reduced mental or physical performance capability, resulting from sleep loss, extended wakefulness, circadian phase disruption, or workload (mental and/or physical activity) (ICAO, 2020). In the aviation context, fatigue impairs cognitive functions such as attention, decision-making, and reaction time, which are critical for safe flight operations. Pilots, air traffic controllers, and maintenance personnel are all vulnerable to fatigue due to the nature of their work. Long duty periods, irregular work hours, night shifts, and crossing multiple time zones disrupt natural sleep patterns and circadian rhythms. Studies have shown that fatigue can produce cognitive impairments equivalent to or greater than those caused by alcohol intoxication (Williamson & Feyer, 2000). This can lead to lapses in judgment, reduced situational...