Wednesday, July 15, 2009

A little knowledge is dangerous...

For air crew, there is no room for mistakes.

This brand spanking new Airbus 340-600, the largest passenger airplane ever built, sits just outside it's hangar in Toulouse, France, without a single hour of airtime on the clock....


Enter the flight crew to conduct pre-delivery tests on the ground, such as engine run-ups prior to delivery.

The crew taxied the A340-600 to the run-up area. Then they took all four engines to takeoff power with a virtually empty aircraft. Not having read the run-up manuals, they had no clue just how light an empty A340-600 really is.

The take-off warning horn was blaring away in the cockpit because they had all 4 engines at full power. The aircraft computers thought they were trying to take off, but it had not been configured properly (flaps/slats, etc.)

Then one of the crew decided to pull the circuit breaker on the Ground Proximity Sensor to silence the alarm. This fools the aircraft into thinking it is in the air.

The computers automatically released all the brakes - and set the aircraft rocketing forward !! With the following result...


£200 million aircraft meets wall. Wall wins.

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