CF34 Durability Upgrade -- all CF34-3B1 models

Overview / Benefits

• Combustor material and coating to increase hardware life.
• Stage 1 and 2 high-pressure turbine nozzle material and cooling changed for durability.
• C-sump lube system improvement.
• Stage 1 blade tip reparability improved.
• Stage 1 shroud corrosion resistance improved.

Projected Value

• Reduced maintenance cost.
• Lower scrap rates, increased reparability.

CF34-3A1 to -3B1 Conversion

Overview / Benefits

• Improved take off thrust.
• Improved Compressor airflow through new hardware.
• Improved High Pressure Turbine (HPT) clearances through new passive control system.
• Lower HPT temperatures, and improved HPT durability.
• Improved LPT clearances, reduced LPT leakage, and improved LPT durability.
• Reduced spare parts inventory and costs.

Projected Value

• Increased Aircraft Residual Value (up to $160K).
• Improved Climb Thrust Capability of - 2.2% @ 37,000ft.
• Fuel Burn reductions (up to 3.1%).