JAKARTA – Indonesian divers searched waters off Jakarta today for black boxes from a passenger jet that crashed at the weekend with 62 people aboard, as investigators took up the grim task of identifying victims' remains.
Retrieving the boxes – cockpit voice and flight data recorders – will likely help explain why the Sriwijaya Air Boeing 737-500 plunged about 3,000m in less than a minute before slamming into the Java Sea.
Investigators have so far been unable to say why the 26-year-old plane crashed just four minutes after takeoff from Jakarta, but they do know the location of the black boxes.
The plane’s captain, Afwan, a 54-year-old father of three, who like many Indonesians goes by one name, was a former air force pilot with decades of flying under his belt, according to local media.
Some of the 2,600 personnel working in the recovery effort involving dozens of boats and helicopters are hauling body parts, twisted pieces of wreckage and passengers’ clothing from shallow waters about 23m deep.
Underwater photos supplied by Indonesia’s navy showed a sea floor littered with wreckage.
Body bags filled with human remains are being taken to a police hospital where investigators hope to identify victims by matching DNA from their remains to living relatives.
Rapin Akbar, who gave a blood sample to the hospital, had five relatives on board including an older sister, a nephew and his wife, and their seven-month-old baby.
They were flying back to Pontianak, the city on Indonesia’s section of Borneo island which had been SJ182’s destination, about 90 minutes away.
“(My nephew) had planned to go back to Pontianak yesterday but changed his mind and decided to fly on Saturday instead,” the shocked Akbar said.
“He called me to say the flight was delayed and sent me a picture of their baby. It was (their) first.”
All 62 passengers and crew aboard the half-full flight were Indonesian. The count included 10 children.
Despite the name, black boxes are usually bright orange with reflective stripes, and all commercial planes are obliged to have them on board.
They’re built to survive at vast depths and in extreme heat, and are fitted with a beacon which can emit a signal for one month.
The devices record information about the speed, altitude, and direction of the plane as well as flight crew conversations.
Black box data help explain nearly 90% of all crashes, according to aviation experts.
The probe into Saturday’s crash – the latest in a string of disasters for Indonesia’s aviation sector – is likely to take months.
Aviation analysts said flight-tracking data showed the plane sharply deviated from its intended course before it went into a steep dive, with bad weather, pilot error, and mechanical malfunction among the potential factors.
“Something quite dramatic happened after takeoff,” said Stephen Wright, professor of aircraft systems at Finland’s Tampere University.
“The airspeed was far too low. The aircraft didn’t accelerate up to the correct speeds for continuous flight.”
Sriwijaya Air, which flies to destinations in Indonesia and Southeast Asia, has said little about the plane, which was previously flown by US-based Continental Airlines and United Airlines.
The Indonesian carrier has not recorded a fatal crash since it started operations in 2003.
But the Southeast Asian nation’s fast-growing aviation sector has long been plagued by safety concerns, and its airlines were once banned from entering US and European airspace.
In October 2018, 189 people were killed when a Lion Air Boeing 737 MAX jet crashed near Jakarta.
That accident – and another in Ethiopia – saw Boeing hit with US$2.5 billion (RM10.1 million) in fines over claims it defrauded regulators overseeing the 737 MAX model, which was grounded worldwide following the accidents.
The 737 model that went down on Saturday was first produced decades ago and was not a MAX variant.
In 2014, an AirAsia plane headed from Surabaya to Singapore crashed with the loss of 162 lives.
A year later more than 140 people, including scores on the ground, were killed when a military plane crashed shortly after take-off in Medan on Sumatra island. – AFP, January 11, 2021
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