Turbine repair turnaround times are stretching, and owners pay for the wait

Repair turnaround times depend on several things: parts availability, manpower, and how complicated the work is. Recently those times have been stretching for turbine engines in particular, and the price tag has climbed with them.Two clocks are running. One is the wait for a shop slot before work even begins. The other is the turnaround once the part or engine is on the bench. Both have stretched, and they stack.Why lead times are stretchingA shortage of raw materials such as composites and titanium is one of the biggest reasons for these long schedules. Oliver Wyman’s global fleet and MRO market forecast, which tracks the commercial fleet, found that large component systems have been hit hardest. Engines, the largest segment of the MRO market, were especially affected. The forecast attributes much of the squeeze to a bow wave effect from the COVID-19 pandemic and the 737 MAX grounding, which created capacity bottlenecks and pushed turnaround times and prices up.The picture is no longer uniformly worsening. A January 2026 UBS survey found 44 percent of MRO operators reporting improved turnaround, up from 31 percent in mid-2024 and 34 percent in mid-2025. Bain projects that engine MRO demand peaks in 2026 and stays constrained through the end of the decade, with shop-visit demand potentially exceeding capacity by more than 17 percent by 2030. These are commercial-engine figures, but read together they set the tense for the whole market: the worst of the stretch has passed and the queue is easing, but it does not clear this year.AerFin, which works the commercial aftermarket, reported that both airframe and engine MRO are increasing, but there has not been a corresponding increase in teardowns for parts and materials, leading to a shortage of used material. Repair shops are relying on newly manufactured parts and are more likely to face delays rooted in production issues while paying a higher price. AerFin also reports that MROs are prioritizing their own fleet customers, which compounds the issue as work is pushed toward unprepared, independent repair specialists.Why airline numbers don’t transfer to bizjetsThe shortage is being felt across both the commercial and business jet markets, but engines in these markets run through different channels. The new-generation airline engines, Pratt andamp; Whitney’s GTF and CFM’s LEAP, have left hundreds of jets parked waiting for shop slots. Those are not the engines hanging on business jets, which run on platforms like the Pratt andamp; Whitney Canada PT6, Williams FJ44, and Honeywell HTF7000. Even so, business shops like JSSI, StandardAero, Duncan, West Star, and Dallas Airmotive, along with OEM-backed hourly programs, have faced the same shortages in parts and labor.What the wait costs and how to work around itMany bizjet engines and components are covered by an hourly maintenance program, like JSSI. Owners on a program are partially shielded from the price increase because their rate is locked, but they will still face consequences, since a longer shop visit still grounds the jet. For a charter operator, a grounded aircraft means either refunding the passengers booked on it or paying to source a replacement flight, and either way a revenue trip turns into a cost. A private owner who still needs to travel pays for a charter flight instead.An owner paying on condition, out of pocket, is affected by the shortage in labor and parts, because their rate adjusts to account for these factors. They feel the pain of paying for both the cost and the downtime.Capacity is being added and turnaround is easing at the margin, but demand is set to outrun shop capacity through the end of the decade. The owners who plan around the wait, booking early and budgeting for both the bill and the downtime, will be the ones it hurts least.