https://aviation.stackexchange.com/questions/12528/jet-engines-are-they-owned-by-the-airline-or-just-rented https://aviation.stackexchange.com/questions/12528/j

https://aviation.stackexchange.com/questions/12528/jet-engines-are-they-owned-by-the-airline-or-just-rented https://aviation.stackexchange.com/questions/12528/jet-engin... https://www.sps-aviation.com/story/?id=2623&h=Engine-Leasing https://www.sps-aviation.com/story/?id=2623&h=Engine-Leasing The engines also have an always-on connection back to the mothership via satellite, eg: https://www.forbes.com/sites/johngoglia/2014/03/13/aircraft-engine-monitoring-how-it-works-and-how-it-could-help-malaysia-air-370-crash-investigtors/ https://www.forbes.com/sites/johngoglia/2014/03/13/aircraft-...