The European Aviation Safety Agency (EASA) has updated an existing airworthiness directive for engines of the Boeing 737 MAX models.
The reason for this is material inclusions in the high-pressure turbines and high-pressure compressors of certain batches of the LEAP-1B engine, which are manufactured by CFM. If the components break, these defects could release debris and damage the aircraft. Several 737 MAX 8, MAX 9 and MAX 8200 models must therefore go to the workshop to replace the affected components within the next 50 flight cycles.
The EASA had already issued a first airworthiness directive on this problem in May 2023, as the defects have been known for some time. However, other affected parts have been identified since then. The EASA is now reacting to the expansion of the problem. A similar defect was also discovered in September 2023 in the CFM LEAP-1A engine used in the Airbus A321neo.
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