The FAA has published an emergency airworthiness directive requiring visual and eddy-current inspection of Engine Alliance Model GP7200-series engine fan hubs. The measure, which was also adopted by the European Aviation Safety Agency, required completion of inspections by July 2.
The directive was announced following issuance of a manufacturer service bulletin calling for additional checks of GP7270, GP7272 and GP7277 engine fan hub blade slot-bottom and blade slot front-edge cracks.
Collected and summarized from the source below by Ta Ngoc Diep:
https://www.mro-network.com/engines-engine-systems/enhanced-inspection-directive-issued-engine-alliance-airbus-fans