Summary
We propose to adopt a new airworthiness directive (AD) for the products listed above. This proposed AD results from mandatory continuing airworthiness information (MCAI) originated by an aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI describes the unsafe condition as:
Airbus, in the frame of the Extended Service Goal (ESG) exercise, has demonstrated by post-certification analysis that, among the types of yokes in service, one component on the CF6-80C2 forward engine mounts (skinny cast yoke) does not meet the Design Service Goal (DSG) requirements.
This condition, if not corrected, could result in a deterioration of the structural integrity of the forward engine mount.
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The unsafe condition is possible separation of the engine from the engine mount during flight. The proposed AD would require actions that are intended to address the unsafe condition described in the MCAI.