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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.)
  • DH8D, Kathmandu Nepal, 2018 (On 12 March 2018, a Bombardier DHC8-400 departed the side of landing runway 20 at Kathmandu after erratic visual manoeuvring which followed a mis-flown non-precision approach to the opposite runway direction and was destroyed. The Investigation concluded that the accident was a consequence of disorientation and loss of situational awareness on the part of the Captain and attributed his poor performance to his unfitness to fly due to mental instability. A history of depression which had led to his release from service as a military pilot and a subsequent period of absence from any employment as a pilot was noted.)
  • B738, Sochi Russia, 2018 (On 1 September 2018, a Boeing 737-800, making its second night approach to Sochi beneath a large convective storm with low level windshear reported, floated almost halfway along the wet runway before overrunning it by approximately 400 metres and breaching the perimeter fence before stopping. A small fire did not prevent all occupants from safely evacuating. The Investigation attributed the accident to crew disregard of a number of windshear warnings and a subsequent encounter with horizontal windshear resulting in a late touchdown and noted that the first approach had meant that the crew had been poorly prepared for the second.)
  • SW4, Cork Ireland, 2011 (On 10 February 2011, control of a Spanish-operated Fairchild SA227 operating a scheduled passenger flight from Belfast UK to Cork, Ireland was lost during an attempt to commence a third go around due to fog from 100 feet below the approach minimum height. The Investigation identified contributory causes including serial non-compliance with many operational procedures and inadequate regulatory oversight of the Operator. Complex relationships were found to prevail between the Operator and other parties, including “Manx2”, an Isle of Man-based Ticket Seller under whose visible identity the aircraft operated. Most resultant Safety Recommendations concerned systemic improvement in regulatory oversight effectiveness.)
  • B752, vicinity Cali Colombia, 1995 (On 20 December 1995, an American Airlines Boeing 757-200 inbound to Cali, Colombia made a rushed descent towards final approach at destination and the crew lost positional awareness whilst manoeuvring in night VMC. After the crew failed to stow the fully deployed speed brakes when responding to a GPWS ‘PULL UP’ Warning, the aircraft impacted terrain and was destroyed with only four seriously injured survivors from the 163 occupants surviving the impact. The accident was attributed entirely to poor flight management on the part of the operating flight crew, although issues related to the FMS were found to have contributed to this.)

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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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