How often must the pitot-static system be inspected on an aircraft flying IFR?

The pitot-static system must be inspected every 24 months for aircraft operating under Instrument Flight Rules (IFR). This regular inspection is essential to ensure that the instruments reliant on the pitot-static system, such as the altimeter, airspeed indicator, and vertical speed indicator, function correctly. Accuracy in these readings is vital for safe flight operations, especially when flying in conditions where visual references are limited, as is common in IFR conditions.

This 24-month inspection requirement is established in aviation regulations to maintain safety standards and operational integrity, ensuring that all pilots can rely on their instruments for navigation and altitude awareness during flights. Regular inspections help identify any potential issues such as leaks, blockages, or malfunctions in the system that could lead to inaccurate readings, promoting safety in the cockpit.