The EU rules on airline compensation for delay have, to all extents and purposes, become strict liability. The lead case is jet2.com [2014] which involved two faulty engine parts in a KLM plane that was due to leave for Quito. The parts failed unexpectedly – but within their normal lifespans – meaning that KLM had to fly in replacement parts causing a 24-hour delay. KLM argued that, for all practical purposes, it was impossible to avoid the technical failure and thus it was outside their ‘actual control’ and ‘an extraordinary circumstance’. But, it was held that while this was an ‘unexpected flight safety shortcoming’ it was not ‘extraordinary’ because it is ‘normal’ for there to be unexpected mechanical failures – and KLM had a duty to maintain the aircraft so it was in ‘actual control’ (even though there was no way it could have foreseen the failures).