Engine program (MSP / CorporateCare / JSSI)
An engine programme is a pay-by-the-hour maintenance contract that covers scheduled and often unscheduled engine work in exchange for a fixed fee per flight hour, typically $250–$1,200 per engine hour depending on type. Honeywell's MSP, Rolls-Royce CorporateCare, Pratt & Whitney's ESP and independent provider JSSI are the best known. Owners like them because they turn a $1–3 million overhaul into a predictable monthly cost, and buyers like them because an enrolled aircraft comes with a funded reserve rather than a looming bill. Coverage is transferable on sale, and a jet that is 'not on programme' typically sells for a discount that reflects the engines' accrued maintenance exposure.