Francisco Jose Garzon Amo, the driver of the Spanish train that crashed and killed 79 people last Wednesday
, was allegedly on the phone and sorting through documents when the train, traveling at twice the speed limit, derailed on a curve in the tracks and collided with a concrete wall.
On Tuesday, investigators looking into the crash announced their preliminary findings from analysis of the train's data-recording "black boxes," suggesting that human error appears to be the cause of Spain's worst railway disaster in decades, the Associated Press reported.
The derailment occurred near Santiago de Compostela, a city in northwestern Spain, late last Wednesday. Some 66 people injured in the crash are still hospitalized, 15 of them in critical condition.
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The accident cast a pall over the city, which is the last stop for the faithful who make it to the end of the El Camino de Santiago pilgrimage route that has drawn Christians since the Middle Ages. The crash occurred on the eve of annual festivities at the shrine, which subsequently were canceled.
The disaster also stunned the rest of Spain, with Spanish royals and political leaders joining hundreds of people in Santiago de Compostela's storied 12th-century cathedral Monday evening to mourn the dead.
According to the investigation so far, train driver Francisco Jose Garzon Amo received a call from an official of national rail company Renfe on his work phone in the cabin, not his personal cellphone, to tell him what approach to take toward his final destination.
The Renfe employee on the telephone "appears to be a controller," a person who organizes train traffic across the rail network, said a statement from a court in Santiago de Compostela, where the investigation is based.
"From the contents of the conversation and from the background noise it seems that the driver (was) consulting a plan or similar paper document."
The statement on the preliminary findings did not indicate whether such a phone conversation is common between a driver of a moving train and a controller, and it did not say how long the call lasted. It did not name the Renfe official who called the driver, nor did it further describe what plan or document the driver was consulting.
The train had been going as fast as 119 mph (192 kph) shortly before the derailment, and the driver activated the brakes "seconds before the crash," according to the statement. The speed limit on the section of track where the crash happened was 50 mph (80 kph).
Authorities have said that a high-tech automatic braking program called the European Rail Traffic Management System was installed on most of the high-speed track leading from Madrid north to Santiago de Compostela – the route Garzon's train took. But the cutting-edge coverage stops just 5 kilometers (3 miles) south of where the crash occurred, placing a greater burden on the driver to take charge.
The Spanish rail company has said the brakes should have been applied four kilometers (2.5 miles) before the train hit the curve.
A court spokeswoman told The Associated Press that the boxes "did not indicate any technical failures" contributed to the accident. She spoke on condition of anonymity because court regulations bar her from identifying herself by name.
Garzon was provisionally charged Sunday with multiple counts of negligent homicide
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He was not sent to jail or required to post bail because none of the parties involved felt there was a risk of him fleeing or attempting to destroy evidence, according to a court statement.
Investigators from the court, forensic police experts, the Ministry of Transport and Renfe examined the contents of the two black boxes recovered from the lead and rear cars of the train.
The investigation, which includes sniffer dogs, remains ongoing and is expected to last for several more weeks. According to a statement from the Ministry of Transport, the next phase of the investigation will involve the measuring the wheels on the cars and examining the locomotive.
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