jm + disasters   6

Air Canada near-miss: Air traffic controllers make split-second decisions in a culture of "psychological safety" — Quartz
“’Just culture’ as a term emerged from air traffic control in the late 1990s, as concern was mounting that air traffic controllers were unfairly cited or prosecuted for incidents that happened to them while they were on the job,” Sidney Dekker, a professor, writer, and director of the Safety Science Innovation Lab at Griffith University in Australia, explains to Quartz in an email. Eurocontrol, the intergovernmental organization that focuses on the safety of airspace across Europe, has “adopted a harmonized ‘just culture’ that it encourages all member countries and others to apply to their air traffic control organizations.”

[...] One tragic example of what can happen when companies don’t create a culture where employees feel empowered to raise questions or admit mistakes came to light in 2014, when an investigation into a faulty ignition switch that caused more than 100 deaths at GM Motors revealed a toxic culture of denying errors and deflecting blame within the firm. The problem was later attributed to one engineer who had not disclosed an obvious issue with the flawed switch, but many employees spoke of extreme pressure to put costs and delivery times before all other considerations, and to hide large and small concerns.

(via JG)
just-culture  atc  air-traffic-control  management  post-mortems  outages  reliability  air-canada  disasters  accidents  learning  psychological-safety  work 
19 days ago by jm
Germanwings flight 4U9525: what’s it like to listen to a black box recording?
After every air disaster, finding the black box recorder becomes the first priority – but for the crash investigators who have to listen to the tapes of people’s final moments, the experience can be incredibly harrowing.
flight  disasters  metrics  recording  germanwings  air-travel  black-box-recorder  flight-data-recorder  death 
april 2015 by jm
How the search for flight AF447 used Bayesian inference
Via jgc, the search for the downed Air France flight was optimized using this technique:

'Metron’s approach to this search planning problem is rooted in classical Bayesian inference,
which allows organization of available data with associated uncertainties and computation of the
Probability Distribution Function (PDF) for target location given these data. In following this
approach, the first step was to gather the available information about the location of the impact site
of the aircraft. This information was sometimes contradictory and filled with ambiguities and
uncertainties. Using a Bayesian approach we organized this material into consistent scenarios,
quantified the uncertainties with probability distributions, weighted the relative likelihood of each
scenario, and performed a simulation to produce a prior PDF for the location of the wreck.'
metron  bayes  bayesian-inference  machine-learning  statistics  via:jgc  air-france  disasters  probability  inference  searching 
march 2014 by jm
Corium
'a lava-like molten mixture of portions of nuclear reactor core, formed during a nuclear meltdown'
corium  nuclear-power  disasters  nuclear  radioactive  wikipedia  meltdown  from delicious
march 2011 by jm
Nuclear energy: Inside the black box
What's going on inside the Fukushima nuclear reactor, and how it is hoped meltdown can be averted
nuclear-power  meltdown  disasters  japan  fukushima  power  electricity  nuclear  from delicious
march 2011 by jm

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