In addition to FAA flight inspections, radar systems' performance checks shall be made ____________ by a qualified controller through observation and use of the systems.

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Radar systems used in air traffic control require ongoing verification by the people who operate them, not just formal inspections. Checking daily by a qualified controller through observation and use of the systems ensures issues are caught while the equipment is in routine service, including display integrity, target presentation, and basic accuracy of range and bearing as it affects real-time operations. Safety-critical systems can drift or develop transient faults, and daily checks provide timely assurance before each shift or operation. Less frequent checks, like weekly, monthly, or annually, could miss problems that arise day to day, potentially impacting safety. These daily checks complement FAA flight inspections by maintaining continuous confidence in radar performance.