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Laversab
Laversab · Aviation

Aircraft Pitot-Static Leak Checks

Leak checking an aircraft’s pitot-static system helps verify system integrity and maintain accurate airspeed and altitude indications. The steps below outline how to perform an aircraft pitot-static leak check using a Laversab Pitot-Static Tester and the appropriate aircraft adapters:


Visual Inspection
01 / 06

Visual Inspection:

  • Examine the pitot tube, static ports, and associated tubing for any visible damage, cracks, or loose fittings.
Check for Obstructions
02 / 06

Visual Inspection:

  • Ensure that the pitot tube is unobstructed (free from dirt, insects, or ice) and that the drain hole is clear.
Pressurization Method
03 / 06

Pressurization Method:

  • Connect a Laversab pitot-static tester to the aircraft pitot tubes and static ports through appropriate adapters.
  • Apply the required test pressure in accordance with the applicable aircraft maintenance procedure.
  • Monitor the airspeed indicator (ASI) for any sudden changes or deviations.
  • Hold the pressure for about a minute and observe if there’s any drop in indicated airspeed or altitude. This can be performed using the 'Leak' mode on the Laversab Pitot-Static Tester.
  • Slowly release the pressure to avoid damaging the ASI.
Alternate Static Source Check
04 / 06

Alternate Static Source Check:

  • While in flight, switch to the alternate static source (if your aircraft has one).
  • Observe any changes in airspeed and altitude indications.
  • If there’s a significant difference, it could indicate a leak in the primary static system.
Calculating Airspeed
05 / 06

Calculating Airspeed:

  • The difference between dynamic pressure (from the pitot tube) and static pressure (from the static ports) is the pitot-static pressure differential.
  • This differential pressure is used to calculate the aircraft’s airspeed.
  • The airspeed indicator in the cockpit displays this calculated value.
Regular Maintenance
06 / 06

Regular Maintenance:

  • Schedule routine inspections to ensure the pitot-static system remains leak-free.
  • Address any issues promptly to maintain accurate instrument readings.

Remember that a properly functioning pitot-static system is critical for safe flight. Regular checks and vigilance are essential to prevent leaks and maintain accurate air data.


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