Willis Lease Finance Corporation (WLFC) has completed its first core engine restoration at its U.S.-based Willis Engine Repair Center®. The milestone project involved the successful restoration of a CFM56-7B core engine module and formally establishes the company’s new in-house capability, branded Willis Module Shop™.
This development represents a significant step in WLFC’s broader strategy to deepen its technical and operational integration. By bringing core module restoration in-house, the company strengthens its control over engine lifecycle management while validating the commercial and technical viability of the module shop model. Post-maintenance testing of the restored module demonstrated strong recovery in exhaust gas temperature (EGT) margin — a critical performance indicator — underscoring the precision and effectiveness of the restoration process.
The achievement comes at a pivotal moment for the aviation sector, as airlines and lessors transition from legacy aircraft and engine platforms to next-generation fleets. Against this backdrop, WLFC’s enhanced restoration capability reinforces its vertically integrated service offering. Willis Module Shop™ complements the company’s established programmes, including ConstantThrust® and ConstantAccess®, both designed to support customers through fleet transitions by providing predictable engine performance, improved asset availability and disciplined value recovery.
According to Chief Executive Officer Austin C. Willis, although WLFC has long undertaken module swaps and exchanges, internalising core module restoration delivers tangible advantages. These include reduced maintenance expenditure, shorter turnaround times and greater operational control — benefits that strengthen both cost competitiveness and customer value.
WLFC continues to expand its aviation services platform across the full engine lifecycle. Its portfolio spans leasing and trading, maintenance repair and overhaul (MRO) services for engines and aircraft, disassembly, spare parts provision, consulting and asset management. The launch of Willis Module Shop™ therefore represents not merely a technical milestone, but a strategic enhancement of WLFC’s integrated, end-to-end aviation services model, positioning the company for sustained operational efficiency and long-term portfolio returns.
