EASA AD US-2021-18-13
Engine - Combustion Outer Liner Shell - Inspection / Replacement
The Federal Aviation Administration Airworthiness Directive 2021-18-13 is a final rule addressing all General Electric Company CF34-8 model turbofan engines equipped with a specific combustion outer liner shell. This directive mandates inspections and potential replacement of the combustion outer liner shell due to failures that caused two in-flight engine shutdowns. It applies to various CF34-8C and CF34-8E engine variants and aims to mitigate unsafe conditions related to combustion liner shell cracking and collapse.