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Stress

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Article Information
Category: Human Behaviour Human Behaviour
Content source: SKYbrary About SKYbrary
Content control: SKYbrary About SKYbrary

Description

Stress is a bodily response to a stimulus that disturbs or interferes with the “normal” physiological equilibrium of a person and, in the context of aviation, refers to a state of physical, mental or emotional strain due to some external or internal stimulus.

Understanding the factors that lead to stress, as well as how to cope with stressful situations, can greatly improve a individual's performance. Also, understanding that colleagues may react differently to the same stressor is important and can help you control a situation that can quickly get out of hand if an individual is having a negative reaction.

Accidents & Incidents

Events on the SKYbrary database which list stress as a significant contributory factor:

  • E55P, Blackbushe UK, 2015 (On 31 July 2015 a Saudi-operated Embraer Phenom on a private flight continued an unstabilised day visual approach to Blackbushe in benign weather conditions. The aircraft touched down with excess speed with almost 70% of the available landing distance behind the aircraft. It overran and was destroyed by impact damage and fire and all occupants died. The Investigation concluded that the combination of factors which created a very high workload for the pilot "may have saturated his mental capacity, impeding his ability to handle new information and adapt his mental model" leading to his continuation of a highly unstable approach.)
  • A332, Perth WA Australia, 2014 (On 26 November 2014, an Airbus A330-200 was struck by lightning just after arriving at its allocated stand following a one hour post-landing delay after suspension of ramp operations due to an overhead thunderstorm. Adjacent ground services operatives were subject to electrical discharge from the strike and one who was connected to the aircraft flight deck intercom was rendered unconscious. The Investigation found that the equipment and procedures for mitigation of risk from lightning strikes were not wholly effective and also that perceived operational pressure had contributed to a resumption of ground operations which hindsight indicated had been premature.)
  • MD82, Phuket Thailand, 2007 (On 16 September 2007, an MD-82 being operated by One Two Go Airlines attempted a missed approach from close to the runway at Phuket but after the flight crew failed to ensure that the necessary engine thrust was applied, the aircraft failed to establish a climb and after control was lost, the aircraft impacted the ground within the airport perimeter and was destroyed by the impact and a subsequent fire. Ninety of the 130 occupants were killed, 26 suffered serious injuries and 14 suffered minor injuries.)
  • AT45, vicinity Esbjerg Denmark, 2016 (On 27 March 2016 an ATR 42-500 had just departed Esbjerg when the right engine flamed out. It was decided to complete the planned short flight to Billund but on the night IMC approach there, the remaining engine malfunctioned and lost power. The approach was completed and the aircraft evacuated after landing. The Investigation found the left engine failed due to fuel starvation resulting from a faulty fuel quantity indication probably present since recent heavy maintenance and that the right engine had emitted flames during multiple compressor stalls to which it was vulnerable due to in-service deterioration and hot section damage.)
  • A319, vicinity Zurich Switzerland, 2014 (On 17 October 2014, two recently type-qualified Airbus A319 pilots responded in a disorganised way after a sudden malfunction soon after take-off from Zurich required one engine to be shutdown. The return to land was flown manually and visually at an excessive airspeed and rate of descent with idle thrust on the remaining engine all the way to a touchdown which occurred without a landing clearance. The Investigation concluded that the poor performance of the pilots had been founded on a lack of prior analysis of the situation, poor CRM and non-compliance with system management and operational requirements.)

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Fuel Leak and Confirmation Bias (OGHFA SE) Climb, Cruise, Descent
Fuel Starvation, Stress, Fatigue and Nonstandard Phraseology (OGHFA SE) Cruise, Descent
Landing Gear Failure (OGHFA SE) Landing
Takeoff Weight Entry Error and Fatigue (OGHFA SE) Take Off
Unidentified Fire On Board (OGHFA SE) Cruise, Descent, Landing

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