To further reduce downtime and control costs, Duncan Aviation has invested in the necessary equipment, tooling, and training to bring Honeywell HTF7000 Series engine turbine blade changes and balancing capabilities in-house.
The company purchased a new Schenck V2L/CAB925 Vertical Balancing machine capable of achieving accuracy within 30 millionths of an inch. This precision measurement is critical for engines to be in the best balance condition possible when reassembled, avoiding vibrations.
Duncan Aviation has complete control of all necessary repairs on the HTF7000 series LPT module assembly. If, during a scheduled video borescope inspection, discrepancies are found requiring further engine disassembly and inspection, Duncan Aviation can perform all required work, including deblade, reblade, and balance of individual LPT disks, and the assembly as a whole to include Group Balance.
Bringing this inspection in-house cuts the downtime to 21 calendar days, depending on parts availability. “Having this capability in-house reduces shipping costs, potential damage to the module, and miscommunication,” says Shawn Schmitz, Duncan Aviation engine tech rep. “We have better control of the entire engine event.”
