mechanical failure in a sentence

Examples

1. It was evident that only a mechanical failure would stop him.
2. Later, federal officials said they were leaning toward mechanical failure.
3. No X-ray check at Concourse B can expose mechanical failure.
4. An initial investigation showed possible mechanical failure in the transfer.
5. He also said mechanical failures had not been ruled out.
6. The accident was caused either by human or mechanical failure.
7. Italian media said a mechanical failure possibly triggered the crash.
8. The second MiG crashed due to mechanical failure, officials said.
9. Or could it have been simply a fatal mechanical failure?
10. Mechanical failure is a big problem for art cars, because: