The standard low utilization maintenance program is to supplement themaintenance requirements of the low utilization rate based on the normal utilizationmaintenance scheme when the actual annual utilization rate is lower thanthemaintenance program, so as to meet the airworthiness requirements of the lowutilization maintenance scheme in the Bureau AC-121-53 Civil Aircraft MaintenanceProgram.

Standardized low utilization maintenance scheme contains the aircraft under thecondition of low utilization operation, the aircraft required to performinspection tasksand low utilization interval requirements, is to ensure the safety of the aircraft continuous airworthiness plan maintenance file, the airline shall performaccordingtothe requirements of the maintenance scheme, in order to meet the requirements of airworthiness regulations.