CFM International is using the grounding of the Boeing 737 MAX to catch up with deliveries of the aircraft’s LEAP-1B engine and develop long-term fixes for to address early in-service issues. “We have taken advantage of the time to catch the customers up on any engine maintenance or anything else that needed to go on,” CFM EVP Allen Paxson said during a media briefing on the eve of the air show.  One of the major issues is coking in the fuel nozzles, a problem that ...

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