Whether a flight cancellation is caused by extraordinary circumstances under Article 5(3) of Regulation (EC) No 261/2004 when the circumstances affect the flight only indirectly by prompting airline-wide rescheduling that includes its planned cancellation.
The question was referred to the CJEU for interpretation.
The court asked whether circumstances such as a wildcat strike or wave of illness can qualify where their effect on the particular flight is mediated by a reorganisation of the airline's entire flight schedule.