Month: August 2019

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Posted in Human Factor

“Inboard Flap Asymmetry B757 cannot recover?”, Boeing”we know but cannot happen because….features”. It happened.

American Airlines got their first few Boeing 757 aircrafts in 1990’s. The check airmen got their toys, the flight simulator to play around with. During the play session on one of the full flight simulators, they discovered that when a failure of Inboard Flap Asymmetry was simulated by pushing a button on the instructor control panel, the resultant effect on the aerodynamics created an irrecoverable situation. Boeing was queried immediately and they were very candidly told that what American Airlines was saying was absolutely true. What followed later was taken down with a pinch of salt. Boeing said that the…

 
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‘A’ of attitude is NOT ‘B’ of behaviour in Competency Based Training

While attitude has not been defined in either ICAO or IATA documents, both have the behavioural indicators as a measure of the performance standard. Behaviour and attitude are not the same and the incorrect indicator is being used to populate the database and give feed back.

 
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Two fires but no evacuation. When Saudi flight 163 turned to ambers and Singapore 368 survived

On 19th Aug 1980 Saudi Airlines SV163 turned back soon after takeoff due onboard fire and after landing met with an unfortunate fate and all 301 onboard perished. 36 years later Singapore Airline B777 flight SQ368 to Milan, turned back soon after takeoff and landed back with an engine fire which soon engulfed the wing. Fortunately, all aboard disembarked the aircraft safely. Both aircrafts turned back and landed safely. Both crew had issues identifying the appropriate procedure applicable in the scenario they were facing. Cabin crew of both crew had the authority and training to initiate evacuation in the absence…

 
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Posted in Human Factor Training

Standard Operating procedures, background & development

There are some unique situations where the SOP does not have the desired effect. What do we do? Understand the background and development of SOP.

 
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Flight crew categorized as “Radiation Workers” in USA

Risk of exposure to harmful radiation on flight crew flying over the poles is a serious concern.

 
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Fixation causes the background to disappear

Try this experiment. Focus your attention on the cross for a while. As you concentrate hard to focus on the cross in the centre, the background slowly begins to disappear. This could be a possible explanation why crew of AC759 flew over 4 aircrafts at San Fransisco with noticing them. The Troxler Effect is named after Swiss physician and philosopher Ignaz Paul Vital Troxler (1780-1866). In 1804, Troxler made the discovery that rigidly fixating one’s gaze on some element in the visual field can cause surrounding stationary images to seem to slowly disappear or fade. They are replaced with an…