| 31. | It was evident that only a mechanical failure would stop him.
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| 32. | Later, federal officials said they were leaning toward mechanical failure.
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| 33. | No X-ray check at Concourse B can expose mechanical failure.
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| 34. | An initial investigation showed possible mechanical failure in the transfer.
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| 35. | He also said mechanical failures had not been ruled out.
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| 36. | The accident was caused either by human or mechanical failure.
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| 37. | Italian media said a mechanical failure possibly triggered the crash.
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| 38. | The second MiG crashed due to mechanical failure, officials said.
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| 39. | Or could it have been simply a fatal mechanical failure?
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| 40. | Mechanical failure is a big problem for art cars, because:
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