Engine Testing

Engine test cell – LM2500 and LM5000

Air New Zealand Gas Turbines tests engines onsite in an enclosed aero engine cell. A conical slave nozzle provides load to the gas generator, allowing performance testing throughout the engine's range.

Tests include :

  • Idle checks
  • Power level actuator
  • Restarts
  • Shutdowns
  • VSV & VBV operation
  • Air, oil and fuel leaks
  • HP/LP recoup operation
  • Vibration
  • Corrected oil pressure
  • Oil temperatures
  • Vent system operation
  • Seal break-in
Engine performance
  • Compressor efficiency
  • Heat rate
Trim balance
  • LPC trim balance
  • HPC trim balance
Contingency tests

PT Spin test (nozzle facility)

Pre-induction testing
  • Profiles engine prior to repair or overhaul - recommended if trending data from operational site not available
  • Compares engine against wider population of engine test data
  • Identifies issues that can be incorporated into engine work scope to avoid potential time and financial costs post depot visit