How are operators approaching their fleet management and neo strategies in response to durability problems within the in-service engine fleet? What is the knock-on impact on sourcing of spare engines? And furthermore, what is the expected impact on delivery schedules of new aircraft? What are the evolving MRO requirements for these powerplants, and how are MROs preparing services, outside of the OEM network? What does the industry need from OEMs in terms ofÊ investment and resolutions to durability issues?