That shouldn't be a failure mode, but building up over seven years?

The original glass, which has no such failure mode, remains clear after 50 years.

That is, change the system design so its failure modes are not catastrophic.

One main failure mode is caused by tearing of the material.

Even then, for that particular failure mode only a partial repair would be possible.

All the potential causes for a failure mode should be identified and documented.

Often a part has only a few failure modes.

The first example of this failure mode occurs in the story "Liar!"

This was one of many failure modes that brought such worlds crashing down.

- Analyze potential failure modes and their effects on performance.