Airlines have been warned the UK's second largest airport is facing a fuel shortage, sparking fears of severe disruption during the summer holidays. Gatwick Airport issued an alert to pilots instructing them to load up fuel at other airports where possible while en-route to the airport. Advertisement AdvertisementElsewhere, a second "emergency" alert told airline chiefs of "potential disruption to the Gatwick fuel supply". The fuel shortage warning came with many long-haul flights already enroute to the UK, meaning crews were unable to bring extra fuel with them. Advertisement Advertisement"The longer the fuel shortage lasts, the tighter it will get.