From The Register (so all a little tongue in cheek)
The RAF was left eggfaced in recent weeks as its entire force of fighters - nowadays made up of new and horrifyingly expensive Eurofighter "Typhoons" - was grounded following discovery of faults in their ejector seats. The grounding was particularly embarrassing as it came into force on Battle of Britain Day, the 70th anniversary of the RAF fighter force's greatest victory. Fortunately, Blighty was not left completely defenceless: WWII-vintage Spitfire and Hurricane fighters remained operational for flypasts and displays as their expensive successors became hangar queens.
http://www.theregister.co.uk/2010/09/21/eurofighter_battle_of_britain_debacle/...145