Recertification Test Run

Ensuring Peak Performance and Safety for Your Engine

Key Reasons for Performing a
Recertification Test Run on a CFM56 Engine

Safety Assurance:

  • Verification of Structural Integrity: This ensures that all repaired or replaced components are correctly installed and functioning properly, preventing potential in-flight failures.
  • Compliance with Safety Standards: A confirmation that the engine meets all regulatory safety standards and manufacturer specifications. We ensure the aircraft’s safe operation.

Performance Validation:

  • Operational Readiness: Here we validates that the engine performs efficiently across all power settings, from idle to maximum thrust. This ensures reliable operation in various flight conditions.
  • Detection of Anomalies: Here we identifies any performance issues, such as abnormal vibrations, temperature deviations, or fuel flow inconsistencies. We protect your bottom line by allowing for corrective action before the engine is put back into service.

Regulatory Compliance:

  • Adherence to Certification Requirements: This meets mandatory requirements set by aviation authorities, such as the FAA or EASA, for engine recertification after maintenance, repair, or overhaul.
  • Documentation and Traceability: We keep and provide a documented record of the engine’s performance and compliance, essential for regulatory audits and maintaining airworthiness certification.
Certification test-run

A Brief Overview On Test Runs

A recertification test run or NPA tests are a critical procedure. This ensures that a CFM56 engine meets all necessary performance and safety standards. Keep your engines safe after undergoing maintenance, repair, or overhaul. Here’s a brief description of what this process entails:
 

  1. Preparation:

    • Installation: We securely mount the engine on a test stand or test cell. It is equipped with all necessary instrumentation for monitoring performance parameters.
    • Pre-Test Inspection: A thorough inspection is conducted. This helps us verify that all components are correctly installed and that there are no visible defects or leaks.            

  2. Initial Checks:

    • System Calibration: All measuring and diagnostic equipment is calibrated to ensure accurate readings.
    • Dry Crank Test: The engine is cranked without fuel to check for proper rotation. This ensures there are no unusual noises or vibrations.                                                                  

  3. Start-Up:

    • Ignition: The engine is started, and initial readings are taken to monitor basic functions. These include fuel flow, oil pressure, and temperature.
    • Stabilization: The engine is run at idle to stabilize temperatures and pressures.

Got questions? We’ve got answers. 

Click here

At A Glance From Start To Finish

  • Performance Testing:

    • Idle Run: Verification of engine performance at idle, including stable operation and proper response to throttle inputs.
    • Acceleration: The engine is gradually accelerated to various power settings to check for smooth operation, proper fuel flow, and response times.
    • Full Power Run: The engine is run at maximum thrust to ensure it can achieve and sustain the required power output without any issues.
    • Transient Testing: The engine is subjected to rapid throttle changes to test its ability to handle sudden changes in demand.                   

  • Data Collection:

    • Monitoring: Throughout the test run, data is collected on parameters such as turbine temperatures, pressures, vibration levels, fuel consumption, and thrust output.
    • Analysis: The collected data is analyzed to verify that all performance metrics meet the manufacturer’s specifications and regulatory requirements.            

  • Final Checks:

    • Cool-Down: The engine is allowed to cool down gradually to prevent thermal shock.
    • Post-Test Inspection: A detailed inspection is conducted to ensure there are no signs of damage or wear resulting from the test run.   

  • Certification:

    • Report Generation: A comprehensive test report is generated. All findings are documented and confirm that the engine meets all performance and safety standards.
    • Approval: The engine is certified for return to service, having successfully passed all required tests.

A recertification test run ensures that a CFM56 engine is ready for reliable and safe operation. This provides confidence in its performance and compliance with industry standards. NPA and Test Cell options are available. 

Got questions? We’ve got answers. 

Click here