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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:

  • B738, vicinity Christchurch New Zealand, 2011 (On 29 October 2011, a Boeing 737-800 on approach to Christchurch during the 68 year-old aircraft commander's annual route check as 'Pilot Flying' continued significantly below the applicable ILS minima without any intervention by the other pilots present before the approach lights became visible and an uneventful touchdown occurred. The Investigation concluded that the commander had compromised the safety of the flight but found no evidence to suggest that age was a factor in his performance. A Safety Recommendation was made to the Regulator concerning the importance of effective management of pilot check flights.)
  • WW24, vicinity Norfolk Island South Pacific, 2009 (On 18 November 2009, an IAI Westwind on a medevac mission failed to make a planned night landing at Norfolk Island in unanticipated adverse weather and was intentionally ditched offshore because of insufficient fuel to reach the nearest alternate. The fuselage broke in two on water contact but all six occupants escaped from the rapidly sinking wreckage and were eventually rescued. The Investigation initially completed in 2012 was reopened after concerns about its conduct and a new Final Report in 2017 confirmed that the direct cause was flawed crew decision-making but also highlighted ineffective regulatory oversight and inadequate Operator procedures.)
  • B738 / F100, Geneva Switzerland, 2014 (On 31 March 2014, a Geneva TWR controller believed it was possible to clear a light aircraft for an intersection take off ahead of a Fokker 100 already lining up on the same runway at full length and gave that clearance with a Boeing 737-800 6nm from touchdown on the same runway. Concluding that intervention was not necessary despite the activation of loss of separation alerts, the controller allowed the 737 to continue, issuing a landing clearance whilst the F100 was still on the runway. Sixteen seconds later, the 737 touched down three seconds after the F100 had become airborne.)
  • SF34, en-route, near Caltrauna Argentina, 2011 (On 18 May 2011, a Saab 340 crew attempted to continue a climb to their intended cruising level in significant airframe icing conditions at night before belatedly abandoning the attempt and descending to a lower level but one where their aircraft was nevertheless still rapidly accumulating ice. They were unable to recover control after it stalled and a crash into terrain below followed. The Investigation attributed the accident to lack of crew understanding of the importance of both the detection of and timely and appropriate response to both significant rates of airframe ice accumulation and indications of an impending aerodynamic stall.)
  • A320, vicinity Sochi Russia, 2006 (On 3 May 2006, an Airbus 320 crew failed to correctly fly a night IMC go around at Sochi and the aircraft crashed into the sea and was destroyed. The Investigation found that the crew failed to reconfigure the aircraft for the go around and, after having difficulties with the performance of an auto go-around, had disconnected the autopilot. Inappropriate control inputs, including simultaneous (summed) sidestick inputs by both pilots were followed by an EGPWS PULL UP Warning. There was no recovery and about a minute into the go around, a steep descent into the sea at 285 knots occurred.)

... further results

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Related OGHFA Situational Examples

Situational Example Flight Phase
De-icing and Latent Organisational Factors (OGHFA SE) Take Off
Disorientation During Vectored Go-Around (OGHFA SE) Missed Approach
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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Further Reading

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