Jakarta, Nov 5 : The "black box" data recorder from a crashed Lion Air jet shows its airspeed indicator malfunctioned on its last four flights, investigators said Monday, just hours after distraught relatives of victims confronted the airline's co-founder at a meeting organised by officials.
National Transportation Safety Committee chairman Soerjanto Tjahjono said the problem was similar on each of the four flights, including the fatal flight on October 29 in which the plane plunged into the Java Sea minutes after taking off from Jakarta, killing all 189 people on board.
Erratic speed and altitude on the plane's previous flight, from Denpasar on Bali to Jakarta, were widely reported and "when we opened the black box, yes indeed the technical problem was the airspeed or the speed of the plane," Tjahjono told a news conference.
"Data from the black box showed that two flights before Denpasar-Jakarta also experienced the same problem," he said. "In the black box there were four flights that experienced problems with the airspeed indicator."
Indonesian investigators, the plane's manufacturer, Boeing, and the US National Transportation Safety Board are formulating a more specific inspection for Boeing 737 MAX 8 planes related to the airspeed problem, Tjahjono said.
"If there are urgent findings to be delivered, we will convey them to the operators and to the manufacturer," he said.
Lion Air has said a technical problem with the jet was fixed after problems with the Bali to Jakarta flight.
Investigator Nurcahyo Utomo said investigators need to review maintenance records, including what problems were reported, what repairs were done including whether components were replaced, and how the repairs were tested before the 2-month-old plane was declared airworthy.
"Currently we are looking for the cause of problem," he said "Whether the trouble came from its indicator, its measuring device or sensor, or a problem with its computer. This is what we do not know yet and we will find it out," he said.
At the meeting with family members, Tjahjono had said that information downloaded from the jet's flight data recorder was consistent with reports that the plane's speed and altitude were erratic after takeoff on its final flight.
Searchers are still trying to locate the cockpit voice recorder.
Rusdi Kirana, Lion Air's co-founder, was not invited to speak by Transport Minister Budi Karya Sumadi, who moderated the meeting between relatives and the officials who are overseeing the search effort and accident investigation.
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.
"Lion Air has failed," said a man who identified himself as the father of passenger Shandy Johan Ramadhan, a prosecutor in a district on the island where the flight was headed.
"I want Mr Rusdi Kirana and his team to pay attention," he said. "Since the time of the crisis, I was never contacted by Lion Air. We lost our child, but there was no empathy that Lion Air showed to us." After the meeting, Kirana left in a hurry, avoiding questions from reporters.
Many families face an agonizing wait for missing relatives to be identified. Police medical experts have received nearly 140 body bags of human remains and have identified 14 victims.
Relatives questioned why the plane had been cleared to fly after suffering problems on its Bali to Jakarta flight on October 28 that included a rapid descent after takeoff that terrified passengers.
"Lion Air said the problem was fixed, is it true the problem was cleared?" asked Bambang Sukandar, whose son was on the flight. "If not, technicians in charge must be responsible," he said.
"The law is absolute, because they have stated that the plane was cleared to take off again. These bad technicians must be processed by law to prevent plane accidents from continuing in Indonesia."
Tjahjono said the large amount of small debris and the relatively small area the debris was found in showed the plane hit the water at a very high speed.
"The plane was intact when it plunged to the sea, it did not explode in the air, and the aircraft engine was running when it touched the water at high RPM it's marked by the loss of all blades of the turbine," he said.
The Lion Air crash is the worst airline disaster in Indonesia since 1997, when 234 people died on a Garuda flight near Medan. In December 2014, an AirAsia flight from Surabaya to Singapore plunged into the sea, killing all 162 on board.
Lion Air is one of Indonesia's youngest airlines but has grown rapidly, flying to dozens of domestic and international destinations. It has been expanding aggressively in Southeast Asia, a fast-growing region of more than 600 million people.
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Mumbai(PTI): The Maha Vikas Aghadi candidates who faced defeat in the recent Maharashtra assembly polls have decided to seek verification of the EVM-Voter Verifiable Paper Audit Trails (VVPATs) units in their segments, a leader of the opposition alliance said.
Many losing candidates of the opposition Shiv Sena (UBT) pointed fingers at the functioning of the Electronic Voting Machines (EVMs) during their interaction with party head Uddhav Thackeray on Tuesday.
Thackeray took stock of the lacklustre performance of his party at a meeting held at his residence in Mumbai.
The poll verdict last week saw the Mahayuti coalition, comprising the Shiv Sena, BJP, and NCP, retaining power with a massive mandate, pushing the Maha Vikas Aghadi (MVA) to margins.
The Mahayuti won 230 seats and MVA only 46 in the 288-member House.
The Thackeray-led Sena (UBT) emerged as the largest party in the opposition camp by winning 20 seats, followed by Congress which bagged 16 constituencies, while the NCP (Sharadchandra Pawar) sits at the bottom with a tally of 10 seats.
Talking to PTI on Tuesday, Congress leader Arif Naseem Khan, who lost the election from Chandivali assembly constituency in Mumbai, said he held a discussion with Thackeray, who also said he has got complaints from his party workers that EVMs could have been tampered.
"We are getting complaints from different parts of the state expressing doubts over the results. In a democracy, complaints need to be verified and many of us, including myself, (who faced defeat) are in the process of applying for the verification," Khan said.
As per the Supreme Court's judgement on April 26 this year, the burnt memory/microcontroller in 5 per cent of the EVMs - the control unit, ballot unit and the VVPAT - per assembly constituency shall be checked and verified by a team of engineers from manufacturers of the EVMs, after the announcement of results, for any tampering or modification, he said.
A written request for this has to be made by candidates who are in the second or third position behind the highest polled candidate.
Such a request has to be made within seven days of declaration of the result, Khan said.
A candidate making the request will have to pay the expenses of Rs 41,000 which will be refunded in case the machine is found to be tampered with, he said.
The microcontroller is a one-time programmable chip embedded into the three units of EVM-Ballot Unit, Control Unit and the VVPAT - at the time of manufacturing, as per the SC.
A Sena (UBT) MLA from Mumbai has claimed there were discrepancies between the votes polled and the votes counted in the EVMs.
"Almost all candidates raised doubts over the EVMs," the legislator said.