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Aircraft engine undergoing compression testing at Penn Air Repair

Compression Testing

Monitor your engine’s health with professional compression testing at Penn Air Repair. Regular compression checks help detect cylinder issues early and ensure safe, efficient operation.

Aviation Services

What is Compression Testing?

Compression testing is an essential diagnostic procedure for piston aircraft engines. It measures the ability of each cylinder to hold pressure — a key indicator of internal engine health. Compression tests can detect issues like worn piston rings, leaking valves, or cylinder wall damage before they develop into costly repairs or safety hazards.

Why Do You Need Compression Testing?

Routine compression testing is a proactive way to monitor your engine’s condition and performance. It is typically required during annual and 100-hour inspections but can also be done at other times to diagnose rough running, loss of power, or high oil consumption.

  • Detect Cylinder Wear – Identify early signs of worn rings, cylinder wall wear, or valve leakage.
  • Ensure Engine Performance – Confirm that each cylinder is operating properly and contributing full power.
  • Prevent Major Repairs – Catch problems early to avoid more serious and expensive repairs down the road.
  • Support Safety – Compression testing helps ensure your engine remains safe and airworthy between major overhauls.

Why Choose Penn Air Repair for Compression Testing?

Our certified technicians use precision tools and proven methods to provide reliable compression test results. We take the time to explain the findings so you can make informed decisions about your engine’s care.

  • Accurate Diagnostics – We use FAA-approved procedures and precision equipment for reliable test results.
  • Expert Technicians – Our experienced team understands how to interpret compression readings and guide you on next steps.
  • Clear Reporting – We provide clear, detailed reporting and recommendations after every compression test.
  • Flexible Service – Schedule a stand-alone compression test or include it as part of your routine inspection.

Schedule Your Compression Test Today

Gain peace of mind with a professional compression test from Penn Air Repair. Contact us today to schedule your appointment or add it to your next inspection.

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