Photo Gallery: Inside Duncan Aviation’s New Engine Shop | Aviation Week
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Lee Ann Shay
August 05, 2026
PW500 Disassembly
Credit: Duncan Aviation
The new overhaul center for Pratt & Whitney Canada engines—PW300 and PW500 specifically–includes 12 maintenance bays. A PW500 engine undergoes disassembly here.
Engine Subassembly
Credit: Duncan Aviation
A Pratt & Whitney engine undergoes subassembly.
PW300 Disassembly
Credit: Duncan Aviation
Duncan technicians separate a Pratt & Whitney Canada PW300 into major modules.
Engine Inspections
Credit: Duncan Aviation
Engine parts undergo inspections to identify out-of-tolerance conditions.
Clean Room
Credit: Duncan Aviation
The new overhaul center includes dedicated OEM sinks, chemicals and processes.
NDT
Credit: Duncan Aviation
Dye penetrant, eddy current, magnetic particle and ultrasonic inspection detect cracks and subsurface defects.
Second Test Cell
Credit: Duncan Aviation
Duncan Aviation’s existing 20,000-lb.-thrust test cell used for Honeywell TFE731 engines, which became operational in 2017, “is running all the time,” so it wanted to build a new 20,000-lb.-thrust Atec test facility to support the PW300 and PW500 engines, says Scott Stoki, VP of engine operations.
TFE731 Overhaul
Credit: Duncan Aviation
Duncan Aviation also is a Honeywell TFE731 authorized overhaul shop. It employs 65 team members in 3 shifts.
Test Cell
Credit: Duncan Aviation
Duncan’s original 20,000-lb. thrust test cell.
HTF7000
Credit: Duncan Aviation
Duncan Aviation has been performing authorized repairs on Honeywell HTF7000 since 2015, including 4,800-hour borescope inspections.
RE100 APU MRO
Credit: Duncan Aviation
Earlier this year Honeywell authorized Duncan Aviation to perform RE100 APU heavy maintenance—the capability of which Duncan expects to come online in 2027.
Parts Warehouse
Credit: Duncan Aviation
The new engine center includes a parts warehouse that includes 4,362 lines of inventory.
Education Center
Credit: Duncan Aviation
Duncan Aviation’s technical education center supports its 20-month AMT apprenticeship program that started in 2020. Two cohorts start annually. The center also is used for onboarding new hires and supports DME testing for new FAA mechanics.
