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In UA 191 it was discovered that a maintenance procedure to remove an engine and replace it as stated by the manufacturer, was altered by United maintenance to make it faster. An untimely shift change led to a situation where the engine was not fully supported in maintenance operation and the bolts/struts holding it to the wing were stressed/damaged without anyone realizing. When the plane took off from O'Hare, the bolts holding the engine finally gave way and the engine detached. Ironically, just the loss of the engine would have been survivable as the DC-10 can take off with only 2 of its 3 engines. But when the engine detached, it tore through hydraulic lines that caused flaps to retract on the left wing, resulting in loss of lift. There was no way for the pilots to save the plane at that point and it rolled and crashed.Question : What if it was faulty maintenance, because for the engine to detach it seems like a catastrophic failure somewhere ?
Even if there were experienced people working on the engine before it took off (we haven't heard yet if there was any maintenance before so theorizing here); what if there was a newer employee and they made a mistake.
Again there's also a question of a faulty part that may have caused the separation.
Hope the families can get all of the answers they need, they deserve to know the truth and hopefully this won't happen again.
Did they find out what caused the crash of United flight 191 ?
Imo.
We will see what this cause was. I am confident the NTSB will put it all together. Unlike UA 191, this plane left wing is completely in flame before lift off. I think something else happened here. Maybe more like the Concord crash where debris on the runway flew up and punctured the fuel tank.