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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:

  • B735, Jos Nigeria, 2010 (On 24 August 2010, a Boeing 737-500 made an uncontrolled touchdown on a wet runway at Jos in daylight after the approach was continued despite not being stabilised. A lateral runway excursion onto the grass occurred before the aircraft regained the runway centreline and stopped two-thirds of the way along the 3000 metre-long runway. Substantial damage was caused to the aircraft but none of the occupants were injured. The aircraft commander was the Operator's 737 Fleet Captain and the Investigation concluded that the length of time he had been on duty had led to fatigue which had impaired his performance.)
  • 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.)
  • E50P, Berlin Schönefeld Germany, 2013 (On 15 February 2013, an Embraer EMB-500 Phenom 100 crew lost control of their aircraft shortly before touchdown at Berlin Schönefeld when it stalled and crash-landed. The Investigation was not completed for almost six years but concluded that the stall was a result of ice accretion during an approach in icing conditions without activation of the airframe de icing system. It found poor crew awareness of both the ice and stall protection systems and, suspecting that this may be true of other type-rated pilots, accordingly made Safety Recommendations to key regulatory authorities concerning the type rating syllabus.)
  • B742 / B741, Tenerife Canary Islands Spain, 1977 (On 27 March 1977, a KLM Boeing 747-200 began its low visibility take-off at Tenerife without requesting or receiving take-off clearance and a collision with a Boeing 747-100 backtracking the same runway subsequently occurred. Both aircraft were destroyed by the impact and consequential fire and 583 people died. The Investigation attributed the crash primarily to the actions and inactions of the KLM Captain, who was the Operator's Chief Flying Instructor. Safety Recommendations made emphasised the importance of standard phraseology in all normal radio communications and avoidance of the phrase "take-off" in ATC Departure Clearances.)

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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

Related OGHFA Material

Further Reading

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