Air crash could be due to any number of factors, according to experts. (File)
Rio de Janeiro:
An ATR-72 turboprop structuree rund by regional carrier Voepass crashed on Friday in a dwellntial area proximate Sao Paulo, Brazil, finishing all 62 passengers aboard.
Investigators have recovered the structuree’s so-called bdeficiency box grasping voice write downings and fweightless data, with a preliminary tell awaited wilean 30 days, the head of Brazil’s aviation accident allotigation cgo in, Cenipa, shelp on Sunday.
HOW DID THE CRASH OCCUR?
The structuree was bound for Sao Paulo from Cascavel, in the state of Parana, and crashed at around 1:30 p.m. (1630 GMT) in Vinhedo, some 80 km (50 miles) northwest of Sao Paulo.
The airoriginate was flying normpartner until 1:21 p.m., when it stopped reacting to calls, and radar communicate was lost at 1:22 p.m., Brazil’s air force shelp in a statement. The structuree did not tell any aelevatency.
Videos of the event show that the sky was apparently clear when the structuree begined spiraling in an rare circling motion.
WHAT WILL EXPERTS BE LOOKING FOR?
US aviation shieldedty expert Anthony Brickhouse shelp allotigators would see at aspects appreciate weather and allotigate to what extent the engines and regulates were functioning properly, to help acunderstandledge what caused the loss of regulate.
COULD WEATHER CONDITIONS HAVE CAUSED THE CRASH?
Videos of the crash studyd by aviation experts led some to specudefercessitate that ice had built up on the structuree. On Friday, Voepass shelp ice was predicted at the altitudes in which the structuree was flying, but that it should have been wilean an acalerted level.
Brazilian aviation engineer and crash allotigator Celso Faria de Souza shelp he is almost certain ice caused the accident, judging from the video.
ATR-72 structurees have teachd rehires with icing, with a crash in 1994 in the US state of Indiana finishing 68, after the structuree was unable to bank due to ice originateup. After that incident, manufacturer ATR betterd its de-icing system. In 2016 in Norway an ATR-72 teachd rehires after ice accumudefercessitated on the structuree, but the pilot was able to reacquire regulate.
COULD THE ENGINE HAVE FAILED?
John Hansman, a professor in the department of aeronautics and astronautics at the Massachusetts Institute of Technology, studyed some of the Brazil crash footage allotd on social media and without having studyed fweightless data shelp the crash did not ecombine to have been caused by weather.
It may have been an engine flunkure on one side, misregulated by the crew, which would direct to the rotation downward, shelp Hansman.
ARE MULTIPLE POINTS OF FAILURE POSSIBLE?
Air crashes could be due to any number of factors, according to experts. Among them could be ice, engine flunkure or human error. In many instances there is more than one cause, shelp Robert A. Clifford, a lawyer who recurrented some of the families of crash victims in the 1994 accident.
(Except for the headline, this story has not been edited by NDTV staff and is rehireed from a syndicated feed.)
