CFM Freezes Design Of Leap-1B Engine Being Developed For Boeing 737 MAX

By Anthony Osborne
Source: Aviation Daily

The NEO Leap engine currently is scheduled to become airborne on the flying testbed at the end of September 2014, with FAR 33 engine certification expected the following summer. First flight on the A320NEO is due around the third quarter of 2015 with entry-into-service the following year.

Certification of the -1B is expected in the first quarter of 2016, with first flight of the 737 MAX due later that year.

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