Published: Thu, November 08, 2018
World Media | By Cesar Oliver

Relatives demand answers over plane crash

Relatives demand answers over plane crash

The U.S. plane maker said investigators probing the Lion Air crash off the coast of Indonesia that killed all 189 people aboard found that one of the "angle of attack" sensors on the Boeing 737 MAX aircraft had provided erroneous data.

Boeing has delivered 219 Max planes - the latest and most advanced 737 jets - since the models made their commercial debut past year with a Lion Air subsidiary. "One of them should have reacted to the airspeed indicator malfunction in his display", said Nurcahyo, confirming that the jet was in the pilot's control, set to manual.

Indonesia's National Transportation Safety Committee said it had agreed with Boeing on procedures that the airplane manufacturer should distribute globally on how flight crews can deal with "angle of attack" sensor problems. The finding is the first technical problem revealed as part of the investigation into why the plane crashed.

"There are some things that we ask for explanation and some that we ask to be removed, and there has been an agreement between the NTSC and Boeing to release a new procedure to all Boeing 737 MAX users in the world", he said.

A separate procedure involving a specific sequence of actions can be used to disengage the sensor from feeding information to the plane's computer system to address the issue for the duration of a flight.

Tjahjono said Flight 610 was intact with its engines running when it slammed into the sea 13 minutes after takeoff. If the problem isn't fixed, it can cause planes to simply fall out of the sky.

Boeing Co. said on Wednesday it had issued a safety bulletin reminding pilots how to handle erroneous data from a key sensor in the wake of last week's crash in Indonesia. If the angle is too extreme it can cause the wings to lose lift and the aircraft to stall.

Aboulafia, the vice president of analysis at the consulting firm Teal Group, argues that it's more important to emphasize how pilots react to failures such as incorrect sensor readings than the failures themselves.

The agency said it would probe what caused the indicator problem and whether proper repairs were done - including replacing the faulty component, he added.

At a news conference charged with emotion, relatives addressed questions to Indonesian officials including transport minister Budi Karya Sumadi and the head of the country's transportation safety committee (KNKT).

Recovery efforts are looking for the other "black box", the cockpit voice recorder, as investigators analyze the flight data recorder found last week.

But he stood and bowed his head after angry and distraught family members demanded that Kirana - who with his brother Kusnan Kirana founded Lion Air in 1999 - identify himself. "Especially if you have a crew that's confused and doesn't know what's going on".

In a related development, Indonesia said it will extend by three days its search for the bodies of passengers from the ill-fated plane, an official said, as the authorities struggle to identify victims of the crash.

Pramintohadi Sukarno, the Ministry of Transportation's acting director general for air transportation, said Flight No. JT633 had been canceled and the pilots grounded after the accident.

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