What is the primary benefit of conducting a 100-hour inspection?

The primary benefit of conducting a 100-hour inspection is to maintain airworthiness for rented aircraft. This inspection is particularly crucial for operators of rental aircraft, as it ensures that the aircraft is safe and meets all federal aviation regulations. These inspections are mandated by the FAA for aircraft that are used for hire and are intended to identify potential issues that could affect safety and performance.

Regular 100-hour inspections help identify wear and tear on various aircraft systems and components, allowing for necessary repairs or maintenance to be performed before they lead to more serious problems. This not only plays a critical role in ensuring the safety of the aircraft but also helps operators comply with regulatory requirements, hence preserving the operational integrity of the rental fleet. While other options address important aspects of aircraft operation, none specifically highlight the core function of safeguarding airworthiness in a rental context, making this choice the most relevant to the question.