April 22, 2019, © Leeham News: If there remains any doubt that Boeing’s prospective New Midmarket Airplane (NMA) won’t be ready for entry into service (EIS) by 2025, it should be dispelled by now.
The Board of Directors is unlikely to approve Authority to Offer (ATO) the NMA for sale as long as the cash flow for the MAX is outgoing and not in-coming.
Although this has its own impact on the NMA timing, it’s not the critical factor.
Last week, it was revealed that the CFM LEAP engine on the MAX (and the Airbus A321neo) has a problem called coking, which led to the contained engine failure of a Southwest Airlines MAX being ferried from Orlando (FL) to Victorville (CA) for the grounding of the Boeing airplane (see here and here). It’s the latest in a long line of engine maker problems with their current generation of powerplants.
This issue is unrelated to the MAX MCAS grounding. It also affects some engines on the A320neo family.