How often are VOR checks required for IFR operations?

The requirement for VOR (VHF Omnidirectional Range) checks in IFR (Instrument Flight Rules) operations is specified by regulations associated with aviation safety and navigation reliability. A VOR must be checked every 30 days to ensure its accuracy and operational integrity. This frequency helps pilots and operators maintain a reliable navigational aid, ensuring that aircraft can safely and accurately navigate using VOR signals.

Maintaining this 30-day check interval decreases the risk of deviations in navigational accuracy that could lead to flight safety hazards. The regularity of these checks is crucial, as even minor inaccuracies in VOR signals could lead to significant navigational errors during flight. Therefore, it's essential for flight operations under IFR to adhere to this guideline for VOR checks to comply with regulatory standards and promote safety in aviation operations.