Managing Fatigue in Aviation Maintenance

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EmirATES AVAITION COLLEGE | Managing Fatigue in Aviation Maintenance | Human factors in Aviation | | Nazar Ahmed Suliman Mohamed | 4/1/2012 |

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Content

1. Introduction …………………………………………………………………………………………………. 3
2. Fatigue Related to Sleep and Circadian Physiology …………………………………….. 4 2.2 Mechanisms of the Circadian Rhythm …………………………………………………………. 4 2.2 Symptoms of Circadian Rhythm and sleep fluctuation ……………………………….. 5
3. Fatigue Resulted from Human Limitation ………………………………………………..…. 7 3.1 Vision …………………………………………………………………………………………………………… 7 3.2 Workload …………………………………………………………………………………………………….. 7
4. Managing Human fatigue …………………………………………………………………………… 8 4.1 Human Fatigue Risk Assessment
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This change in body temperature has a great influence of human alertness and mental performance at work, with lowest performance experienced between 0300hrs – 0600hrs in the morning. It is therefore vital that work schedule and planning should consider these changes in performance and adjust accordingly.
Scientifically related, on 24 hours time the body maintains normal functioning condition by interacting different amplitudes and phases of multitude variables of circadian rhythms of emotional and physiological with each other. For example, when body temperature levels increased during the day, sympathetic nervous-system is highly activated, metabolic rate is rich, alertness is increased, performance is efficient, and physical body is fit; whereas body temperature levels decreases at night, parasympathetic activity is increased, metabolic rate is poor, sleepiness is increased , and performance is inefficiency.
As a result, consideration to the circadian rhythm of a body is a significant function for people working in aviation industry. In fact, Maintenance personnel, who do rotating shift, have to be encounter with social and biological rhythms with regard to their exact working environment (Wise, Hopkin, and Garland 2010, p, 245). “In 2008, an FAA Conference on fatigue revealed that: scientists, regulators, company management, and labor representatives all agree that personnel fatigue is a recognized safety hazard in the aviation maintenance industry, and we
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