<Ul> <Li> Flights from Heathrow were suspended from midday Thursday 15 April 2010 to 22: 00 Tuesday 20 April 2010 due to risk of jet engines being damaged by volcanic ash in the upper atmosphere caused by the eruption of Eyjafjallajökull in Iceland . </Li> <Li> On 18 December 2010,' heavy' (9 cm, according to the Heathrow Winter Resilience Enquiry) snowfall caused the closure of the entire airport, causing one of the largest incidents at Heathrow of all time . 4,000 flights were cancelled over five days and 9,500 passengers spent the night at Heathrow on 18 December following the initial snowfall . The problems were caused not only by snow on the runways, but also by snow and ice on the 198 parking stands which were all occupied by aircraft . </Li> <Li> On 12 July 2013, the ELT on an Ethiopian Airlines Boeing 787 Dreamliner parked at Heathrow airport caught fire due to a short circuit . There were no passengers aboard and no injuries . </Li> <Li> On 14 February 2018, 2 airside vehicles, a BA engineering vehicle and a Heathrow airside operation vehicle, crashed on a taxiway near Terminal 5 . The driver of the BA vehicle died from cardiac arrest and the other driver sustained a broken shoulder . The airport remained opened, although 20 + flights were delayed . This incident was referred to the health and safety executive and no arrests were made by the Metropolitan Police . </Li> </Ul> <Li> Flights from Heathrow were suspended from midday Thursday 15 April 2010 to 22: 00 Tuesday 20 April 2010 due to risk of jet engines being damaged by volcanic ash in the upper atmosphere caused by the eruption of Eyjafjallajökull in Iceland . </Li> <Li> On 18 December 2010,' heavy' (9 cm, according to the Heathrow Winter Resilience Enquiry) snowfall caused the closure of the entire airport, causing one of the largest incidents at Heathrow of all time . 4,000 flights were cancelled over five days and 9,500 passengers spent the night at Heathrow on 18 December following the initial snowfall . The problems were caused not only by snow on the runways, but also by snow and ice on the 198 parking stands which were all occupied by aircraft . </Li> <Li> On 12 July 2013, the ELT on an Ethiopian Airlines Boeing 787 Dreamliner parked at Heathrow airport caught fire due to a short circuit . There were no passengers aboard and no injuries . </Li>

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