For how many cycles are FCRs maintained?

• A. Two cycles
• B. One cycle
• C. Four cycles
• D. Three cycles

Answer: (A)

The main idea is that maintenance intervals for FCRs are defined by how many operation cycles the equipment goes through, not by calendar time. In this case, two cycles is the standard interval, meaning you inspect, calibrate, and perform any needed service after two complete uses of the system. A cycle is typically one full operation sequence, such as a complete mission or functional test, which allows wear and drift to become noticeable without requiring excessive downtime from overly frequent checks. Inspecting after two cycles catches degradation early while keeping maintenance practical. Waiting for only one cycle would risk missing wear that develops over multiple cycles, while waiting for three or four cycles would exceed the recommended limit and could let issues progress beyond tolerable tolerances before addressed.