More than a thousand jet engines need new parts because of bad metal

US aviation regulators are expanding a mandatory recall for parts in CFM LEAP-1A jet engines. This means more planes will need specific turbine disks and compressor spools replaced due to faulty material.

Aviation regulators found more defective parts in a common jet engine model. This means more airlines will have to ground planes to replace these parts, which could cause flight delays or cancellations. It also highlights the ongoing challenge of ensuring material quality in complex supply chains for critical components.