More jet engines must have their turbine disks replaced due to bad material
What happened
US aviation regulators are expanding a mandatory recall for certain jet engine parts. This means more CFM LEAP-1A engines will need their high-pressure turbine disks and other components replaced because of a manufacturing defect.
Why it matters
Aviation safety relies on catching manufacturing defects before they cause accidents. This expansion means regulators found more parts from the same bad batch of material. It shows the ongoing effort to ensure every affected engine is identified and fixed, preventing potential in-flight failures.
The signal
Watch for any further expansions of this directive, which would indicate a wider spread of the defective material or new failure modes.