The Alitalia case:
CURIA - Documents
Bottom line - maintenance is not considered
force majeure:
The fact that an air carrier has complied with the minimum rules on maintenance of an aircraft cannot in itself suffice to establish that that carrier has taken ‘all reasonable measures’ within the meaning of Article 5(3) of Regulation No 261/2004 and, therefore, to relieve that carrier of its obligation to pay compensation provided for by Articles 5(1)(c) and 7(1) of that regulation.