Friday, April 10, 2009

Altimeter 'had role' in air crash

Altimeter 'had role' in air crash

Wreckage at Schiphol Airport (26 February 2009)
The plane crashed short of the runway where it had been due to land

Investigators have said a faulty altimeter played a role in the plane crash near Amsterdam's Schiphol airport last week that killed nine people.

Dutch Safety Board chairman Pieter van Vollenhoven said the plane was landing on automatic pilot and the problem with the altimeter led to a loss of speed.

He said the airplane had twice before reported problems with its altimeter.

The Turkish Airlines plane crashed just short of the runway. It hit the ground tail-first and broke into three pieces.

The Boeing 737-800 had been carrying 127 passengers and seven crew. Four Americans and five Turks died, including the captain and two other members of the crew. Dozens were injured, many critically.

At a news conference in The Hague, Mr Van Vollenhoven said the plane had been at an altitude of 595m (1950ft) when making its landing approach to Schiphol airport, although the altimeter recorded an altitude of around ground level.

The plane was on autopilot and its systems believed the plane was already touching down, he said.

The automatic throttle controlling the two engines was closed and they powered down. This led to the plane losing speed, and stalling.

Mr Van Vollenhoven said Boeing had been instructed to warn its clients about possible problems with altimeters on similar aircraft.

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