What is a key component of maintaining airport compliance under Part 139?

Maintaining airport compliance under Part 139 involves ensuring that the airport meets safety and operational standards set by the Federal Aviation Administration (FAA). A key component of this compliance is conducting regular inspections. These inspections are critical because they help identify any potential safety hazards or operational deficiencies that may pose risks to the airport's operations, passengers, and aircraft.

Through these inspections, airport personnel can assess various aspects of airport safety, including runway conditions, lighting systems, and operational procedures. The findings from regular inspections enable airports to make informed decisions regarding maintenance and safety enhancements, thereby fostering a continuous commitment to uphold the regulatory requirements outlined in Part 139. Regular inspections ensure that the airport remains in compliance with federal regulations and can quickly address any issues that arise.

The other options involve aspects that may contribute to airport operations but do not directly address the requirement of ensuring compliance with Part 139 regulations. Minimizing expenditures, expanding terminal facilities, and implementing new technology, while important for the overall management and development of the airport, do not inherently ensure compliance with safety standards. Regular inspections specifically focus on evaluating continued compliance with necessary safety protocols, making them a critical element in maintaining airport safety and regulatory adherence.