This article is more than 5 years old

This article is more than 5 years old

Weather was the “triggering factor” in the crash of AirAsia flight 8501 with icing likely causing engine damage, Indonesia’s meteorological agency said on Sunday, as bad weather continued to hinder rescue efforts.



The Airbus A320-200 crashed into the Java Sea a week ago carrying 162 people from Indonesia’s second city Surabaya to Singapore, and relief workers are hunting for the “black box” flight data recorders to determine the cause of the crash.

The search teams from several countries including the United States and Russia recovered another body on Sunday, bringing the total to 31.

They also found another major part of the aircraft to add to the four discovered on Saturday but rough seas again forced them to abandon their efforts early.

An initial report on the website of BMKG, Indonesia’s meteorological agency, suggested the weather at the time the plane went down sparked the disaster after it appeared to fly into storm clouds.

“Based on the available data received on the location of the aircraft’s last contact, the weather was the triggering factor behind the accident,” said the report.

“The most probable weather phenomenon was icing which can cause engine damage due to a cooling process. This is just one of the possibilities that occurred based on the analysis of existing meteorological data.”

Search and rescue agency chief Bambang Soelistyo said on Sunday that the dive teams managed to go into the water but visibility on the sea bottom was zero, with currents of three to five knots.

“For that reason, the diving efforts must be temporarily stopped. We’ll try to deploy an ROV (remotely-operated underwater vehicle),” he said.

He said the fifth major part of the plane, located early Sunday, was about 10m x 1m (33 x 3.3ft).

The search, focused on a patch of sea southwest of Pangkalan Bun, a town on Borneo, has also been extended east because parts of the plane may have been swept by currents, Soelistyo said.

The relief operation has prioritised finding the bodies of those on board the ill-fated flight, of whom 155 were Indonesian, with three South Koreans, one Singaporean, one Malaysian, one Briton and a Frenchman – co-pilot Remi Plesel.

Indonesian pilot Setiawan, who is part of the ariel recovery effort combing the search area from above, told local television channel MetroTV that he had seen another three bodies floating in the sea early Sunday.

Indonesia has pledged to investigate flight violations by AirAsia, saying the ill-fated aircraft had been flying on an unauthorised schedule when it crashed. The airline has now been suspended from flying the Surabaya-Singapore route.

But the Civil Aviation Authority of Singapore said it had granted permission for the airline’s Sunday flight.

It was unclear how the airline, a unit of Malaysia-based AirAsia, had been able to fly without the necessary authorisation from its starting point.

The company has declined to comment until the probe is complete, but said it would “fully cooperate” with the government.

Before take-off, the pilot of Flight 8501 had asked for permission to fly at a higher altitude to avoid the storm, but the request was not approved due to other planes above him on the popular route, according to AirNav, Indonesia’s air traffic control.

In his last communication, Captain Iriyanto, an experienced former air force pilot, said he wanted to change course to avoid the menacing storm system. Then all contact was lost, about 40 minutes after the plane had taken off.