What constitutes a failure if the non-critical area of the windshield contains?

A failure in the non-critical area of the windshield is determined by the presence of intersecting cracks or a combination of cracks that exceed 2 inches in total length. This is because the non-critical area can still impact the overall structural integrity of the windshield, particularly if the damage is extensive or intersects multiple areas. Larger cracks can compromise the physical strength and safety of the windshield, making it essential for inspection regulations to classify such damage as a failure.

In contrast, smaller scratches or chips may not significantly impair visibility or safety, and minor dirt accumulation can typically be cleaned without affecting the windshield's overall condition. Additionally, cracks shorter than 1 inch often fall within acceptable limits as they are less likely to pose an immediate risk. Thus, the focus is on the size and extent of the damage in the non-critical area, where substantial damage is deemed a failure due to the potential safety concerns it may present.