Beechcraft 1900D Engine TBO Extension: What it means for you

Changes in SB 14003 that affect 1900 operators.

  1. Compliance with all applicable inspection SBs is verified.
  2. A full hot section inspection is performed. Exposed gas generator surfaces must be corrosion-free and all missing diffusor ducts must be replaced. Turbine blades must show no or minimal sulphidation (stage 1 maximum allowable).
  3. Ensure compressor is free of corrosion.
  4. All foreign object damage to compressor must be repaired.
  5. Inspect the AGB starter generator drive pad splines for wear.
  6. Ensure all external surfaces meet all corrosion and damage requirements. Repair generator and cast housing surfaces with touch-up paint. Clean and inspect the gas generator drain valves.
  7. Remove and inspect the external pneumatic hoses and tubes (Px and Py tubes) for cracks or other damage.
  8. Perform all oil system checks.
  9. Inspect accessories. Inspect controls, linkages, leads and connectors. Check temperature indicating system including T1 probe trim resistance.
  10. Check the operation and/or calibration of all engine-related instrumentation.

Option B also includes operation and maintenance requirements that need to be maintained once an engine is registered on the program including engine performance monitoring, compressor washes, fuel nozzle inspections, compressor first-stage inspections, engine control checks and adjustments, propeller balancing, and instrument gauge checks. A yearly report must be supplied to P&WC with a status update relative to these operation and maintenance requirements.

This has been a brief primer on some of the changes in SB 14003 that affect 1900 operators. For more information, contact P&WC or Raytheon Airline Aviation Services.

Additional ReSources

Pratt & Whitney Canada

Raytheon Airline Aviation Services

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