How often must the pitot-static system be inspected?

How often must the pitot-static system be inspected?

• A. Every 12 months
• B. Every 24 months
• C. Every 3 years
• D. Only when indicated by maintenance

Answer: (B)

The fundamental idea is that the pitot-static system, which provides the airspeed, altimeter, and vertical speed indications, must be checked on a regular schedule to ensure its readings are accurate. This system can develop leaks, blockages, or drift over time, and inaccurate readings can mislead you about airspeed or altitude, posing a safety risk. The standard requirement is a 24-calendar-month inspection. This fixed interval is designed to catch developing issues that aren’t always apparent during routine maintenance, without needing to wait for a problem to show up. A certified mechanic uses a pitot-static test set to verify that the system is leak-free and that the instruments respond correctly to known pressures, confirming the integrity of the pitot tube, static ports, and associated lines. Other intervals don’t fit because a yearly (12 months) check is not the mandated cycle for this system, a 3-year interval is too infrequent, and inspection only when maintenance indicates a problem ignores the purpose of periodic verification.

The fundamental idea is that the pitot-static system, which provides the airspeed, altimeter, and vertical speed indications, must be checked on a regular schedule to ensure its readings are accurate. This system can develop leaks, blockages, or drift over time, and inaccurate readings can mislead you about airspeed or altitude, posing a safety risk.

The standard requirement is a 24-calendar-month inspection. This fixed interval is designed to catch developing issues that aren’t always apparent during routine maintenance, without needing to wait for a problem to show up. A certified mechanic uses a pitot-static test set to verify that the system is leak-free and that the instruments respond correctly to known pressures, confirming the integrity of the pitot tube, static ports, and associated lines.

Other intervals don’t fit because a yearly (12 months) check is not the mandated cycle for this system, a 3-year interval is too infrequent, and inspection only when maintenance indicates a problem ignores the purpose of periodic verification.