What is a problem associated with the in-flight operation of aircraft windshield wipers?

Insufficient blade pressure and failure to oscillate is a significant problem associated with in-flight operation of aircraft windshield wipers because these issues can directly impact visibility for the flight crew. Windshield wipers are designed to keep the cockpit clear of rain and debris, which is crucial for safe operations. If the wiper blades do not maintain adequate pressure against the windshield, they may not effectively clear water or contaminants, leading to reduced visibility.

Additionally, if the wipers fail to oscillate as intended, this can result in missed sections of the windshield becoming obscured. This could lead to maneuvering difficulties or an inability to perform safely in varying weather conditions. Both insufficient blade pressure and oscillation failure are mechanical issues that can arise from wear, improper installation, or electrical malfunctions in the wiper system, ultimately compromising safety.