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Tragic regularity

There’s a reason why Controlled Flight Into Terrain (CFIT) is considered one of the leading killers in aviation. These accidents happen with tragic regularity. The recently released report from the Interstate Aviation Committee (IAC), Russia’s investigative body for aviation accidents, demonstrates that the dreadful accident last April that killed the president of Poland along with his wife and many other political leaders was sadly a textbook example of a CFIT accident.

 

The IAC is one of the world’s leading investigative bodies and this investigation was done following the guidelines and standards set by the International Civil Aviation Organization (ICAO). As the report lays out and the cockpit voice recorder backs up, the crew of this flight made poor decisions and ignored warnings from air traffic control and the airplane itself of the danger of trying to land in the conditions at that airport. While we will never know why the crew chose to ignore these warnings, we do know that there are cases all around the world of flight crews disregarding alarms and warnings, leading to tragic consequences.

 

A couple of additional facts at play in this tragedy:

·         This was a non-precision approach and our data shows CFIT is 5 times more likely on this sort of approach

·         The aircraft was equipped with TAWS but it would not have been working 100% because the data for this airport was not in the database. That doesn’t make much difference, however, since the pilots chose to ignore it

·         Air traffic control is not the decision-maker in these circumstances. All they can do is make sure the pilot has the correct weather information and is informed of the alternatives. This was clearly done.

 

We understand the extraordinary scope of this tragedy for the Polish people, yet the circumstances around this accident are not uncommon.  They are a lethal mix of factors that have played out many times.

 

-thoughts from Bill Voss on the IAC report on the April 10, 2010 crash 

posted 1/19/2011