Three separate investigations are looking into why the 25-story crane boom collapsed onto the Tappan Zee Bridge.
Jeff J. Loughlin, the business manager of International Union of Operating Engineers Local 137, said he had spoken to the crane operator on duty that day. Mr. Loughlin said the crane operator, a union member who has not been identified, had told him “he knows what caused the problem.”
“It’s absolutely not an error by him,” Mr. Loughlin said, adding that he had promised investigators he would not publicly reveal what the operator said. But Mr. Loughlin said he had his own theories, which involve the kind of crane being used.
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