What is a key feature of the maintenance plan for the TH-73?

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The maintenance plan for the TH-73 is based on a specific schedule that correlates with flight hours. This approach ensures that the helicopter receives necessary maintenance and inspections at regular intervals, which is crucial for safety and operational readiness. Regular maintenance based on flight hours allows for the identification of wear and tear before it affects the helicopter's performance, ensuring that it remains in peak operational condition. This practice helps in adhering to regulatory requirements and enhances the overall lifespan of the aircraft. The systematic nature of schedule-based maintenance also facilitates better planning and resource allocation for maintenance activities, contributing to the helicopter's reliability and safety during training operations.