The plane is in a flight test facility.

A plane crashed in Indonesia after it disobeyed a warning.

On May 9, 2012 a Russian-built Superjet 100 crashed into Mount Salak in Indonesia, killing all 37 people on board and eight on the crew.

The demand for a regional airliner with a range of between 3,000 and 4,500 kilometers was determined in 2001. The aircraft could be sold. Up to 300 would be sent to airlines from Russia.

Tour in Asia

It wanted to know if airlines in Asia would be interested in purchasing the aircraft. The company chose to go to Asia with the aircraft.

A leak in an engine prevented the aircraft from taking prospective customers on a test flight. The plane was flown back to Moscow after another trip to Indonesia.

Representatives of Indonesian airlines boarded the aircraft at Halim Perdanakusuma International Airport. The pilots asked for permission to descend from a height of over 3000m. Ten thousand ft to 6000 ft. The aircraft requested permission to fly to the right after it received clearance to lower its height. The last time the plane and air traffic control spoke, it was approved.

The Pilots Disregarded EGPWS Alerts

The Mount Salak, which is 7,524 feet tall, was found close to the aircraft. Shortly after the aircraft made a right turn, the crew was informed by the aircraft's Enhanced Ground proximity warning system. The pilots were warned of the need to maneuver the aircraft in order to avoid a crash a moment later.

The pilots didn't pay attention to the alert, so they disabled the E GPWS. The aircraft's warning system sounded a few seconds later with the message "gear not down" to indicate that the aircraft had not yet lowered its landing gear. As the plane slammed into the mountain, the captain disengaged the autopilot but it was too little too late.

Its investigation

The final crash investigation report was released. It found that the aircraft's terrain warning system was working and that the pilots were aware of the danger. The pilots disabled the system because they thought it was broken, even though the surrounding area was obscured by a heavy cloud cover.

The accident was caused by a conversation on the flight deck. The pilots of the plane were unfamiliar with the rough terrain and were operating without the required charts.

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