About a month after issuing requirements to upgrade software on CFM International Leap-1A engines, EASA has mandated similar actions for the -1B variant due to similar designs. The airworthiness directive (AD), effective Nov. 27, requires updating the electronic engine control and engine health-monitoring software as described in a CFM service bulletin issued Oct. 24, and another dated Oct. 30. The original Leap-1A AD stems from issues Denver-based Frontier Airlines had in January with its ...


You must have an Aviation Week Intelligence Network (AWIN) account or subscribe to this Market Briefing to access "EASA Mandates CFM Leap-1B Software Upgrade".


Current Aviation Week Intelligence Network (AWIN) enterprise and individual members: please go to http://awin.aviationweek.com for access.


Not currently a subscriber? Click on the "Learn More" button below to view subscription offers.

Already registered? here.