Define "preventive maintenance" as it pertains to NATOPS.

• A. Actions taken after equipment failure
• B. Scheduled maintenance to prevent equipment failures
• C. Regular pilot training sessions
• D. Procedures followed during emergencies

Answer: (B)

Preventive maintenance, as it pertains to NATOPS, is defined as scheduled maintenance activities designed specifically to prevent equipment failures before they occur. This type of maintenance involves regular inspections, servicing, and parts replacements in accordance with established guidelines to ensure the aircraft operates safely and efficiently. By implementing preventive maintenance measures, potential issues can be identified and addressed proactively, which ultimately reduces the risk of in-flight system failures and enhances overall reliability and safety. This approach is essential for maintaining optimal performance and extending the lifespan of the aircraft and its components.