Throughout the 737 Max woes, the performance or reliability of the LEAP engines has never been called into question. But the immediate fate of the 737 Max is uncertain, and timelines keep being pushed back. According to the WSJ, the move by CFM is a deliberate strategy to mitigate against 737 Max production problems at Boeing. This has seen several airlines switch from the Pratt & Whitney engines to CFM LEAP engines for their A320neo orders. The issues with the 737 Max highlight the wisdom of any supplier, large or small, not relying on a single customer.

Source: The Guardian January 10, 2020 05:37 UTC