from our correspondent
STRESA – What if the brake considered to be faulty actually worked fine and the faults were ignored symptoms of rope discomfort? That is, was it possible that the anomalous noises and the constant blocks were the warning signs of the breakdown that led to the disaster? There sensational hypothesis being examined by the investigators and above all by the technical consultant appointed by the Prosecutor’s Office, Professor Giorgio Chiandussi of the Polytechnic of Turin. It does not come out of nothing. It was ventilated by Davide Marchetto, the technical manager of the Turin Rvs who carried out the two maintenance interventions on the Stresa cable car. Those requested this year by Gabriele Tadini, the head of the plant finished first in prison and yesterday under house arrest. If the control unit of the braking system of cab 3 (the one crashed, ed) signaled a loss of pressure (as Tadini claims referring to those noises, ed) one of the hypotheses that the traction rope he was moving from his home in an anomalous way, Marchetto explained to investigators on May 27, when he was heard as a person informed on the facts.
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The technician says for that the day of the last surgery (April 30) Tadini had not told him about this criticism. So he concentrated on other work: Charging the accumulators of all four cars …. Tadini would then report a problem to cabin 2. We checked the part of the cast heads of this car. But not of 3, where the melted head is now accused of being the breaking point of the cable. Marchetto called Tadini on May 3. To find out if everything was in order. He said about if I never heard from him again.
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The the first intervention dates back to February 4th of this year.On that occasion the call was about the disaster booth and in particular the brake control unit. Exactly the problem Tadini complained about in the days before the disaster, even though he had never mentioned it to Marchetto. That is, the brake that often released stopping the cabin and forcing the operator to reach it every time to unlock it. The problem was related to the master cylinder of the brake control unit, which needed to be replaced. In practice, a malfunction caused the brake to remain closed, blocking the cabin. We therefore replaced the pump and the cabin continued to circulate regularly. But according to Tadini the problem would never really be solved. There brake grain that snapped he arranged it in his own way: by inserting i forks to deactivate the brakes. The rest is known: the rope broke and it was a massacre.
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The Mottarone cable car: insights
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May 31, 2021 (change May 31, 2021 | 07:53 am)
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