Lockwire is installed in a manner that does what to the fasteners' tendency to loosen?

Lockwire is designed to counteract the tendency of fasteners to loosen due to vibrations and other dynamic forces that may be present in aerospace applications. By securing fasteners with lockwire, which is typically wrapped around the fastener heads and secured to an adjacent part or itself, any movement that could cause the fastener to unscrew is effectively mitigated. This method ensures that even if the fastener experiences rotational forces, the lockwire will hold it in place, providing increased safety and reliability.

In the context of the other options, "enhances" might imply that it improves a condition, but it doesn't specifically address loosening. "Prevents" suggests complete elimination of loosening, which is overly definitive since some loosening may still occur, though it is greatly minimized. "Allows" does not fit as it implies facilitating loosening, which contradicts the purpose of lockwire. Therefore, the most accurate description of lockwire's role is that it counteracts the loosening tendency of fasteners.