Monthly Archive: October 2012

Old Facts, New Insights – Lessons from A-320 Part 4

This interesting study by Sarter and Woods revealed that the automation surprises “occur when the crew detects that automation or aircraft behaviour is deviating from their expectations” [2]. In turn, such ‘surprises’ provide the vital opportunity (and learning) to correct unexpected or undesirable aircraft behaviour.

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Old Facts, New Insights – Lessons from A-320 Part 3

A spate of incidents and accidents during 1990s suggested that pilots flying modern ‘glass cockpit’ aircraft “sometimes fail to detect unanticipated and undesirable automation behaviour in time to recover” [2, 8, 9]. Hence it is important to understand the likelihood of human error for the A-320 pilots monitoring the status and behaviour of the automated …

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Old Facts, New Insights – Lessons from A-320 Part 2

The details of the automation surprises faced by the pilots participating in the questionnaire survey is presented hereafter [2].

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Old Facts, New Insights – Lessons from A-320

Automation surprises result from an imbalance between ‘autonomy’ and ‘authority’ of advanced automated systems and the gaps in the operator’s mental model of the system and its interactions. The vital factor at play in such cases could be low observability interfaces in novel (“nonroutine elements”) situations with operator caught in a bind while trying to …

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Old Facts, New Insights – Surprises in Glass Cockpit

The final report of crash of Air France Flight AF 447 stated that the precipitating event of the accident was “temporary inconsistency between the measured airspeeds…..that led in particular to autopilot disconnection” which was compounded by “inappropriate control inputs that destabilized the flight path” [1]. This accident has brought the focus of the aviation community …

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Who failed in Crash of Flight IX-812? Part 3

Glaring Organisational Failure For the purpose of brevity, the organisational failures are only listed here.

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Who failed in Crash of Flight IX-812? Part 2

Various factors defining the success or failure in a multi-crew operations depend on communication, situational awareness, problem solving, decision making, judgement, leadership – followership, stress management, critique and interpersonal skills [2, 3]. In this tragic accident flawed decision making affected good judgement, leading to deliberately compromised situational awareness, aggravated by self-imposed stress and perceived workload …

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Who failed in Crash of Flight IX-812?

The report on accident of Air India Express Flight IX-812 highlighted several factors which resulted in the tragic loss of 158 lives [1]. Limiting to the human factors alone, there were both physiological limitations of the crew and failure of crew resource management (CRM), besides organisational shortcomings.

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Fatigued Pilots! What Happened to Flight IX-812

Air India’s low cost airline, Air India Express, operates a scheduled Quick Turn Around flight IX-811/812 on Mangalore-Dubai-Managlore sector. The onward flight from Mangalore is at 21:35 H (IST) while the return from Dubai is scheduled at 02:45 H (IST, local time 01:15 H), to arrive at Managlore at 06:30 H (IST). On 22 May …

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