From the Avherald:
The Spanish Airport Operator AENA's statement released to press, that only Ryanair aircraft were affected by fuel emergencies, is contradicted by evidence and is false.
On Aug 23rd The Aviation Herald learned a LAN Airlines Airbus A340-300 landed substantially below final fuel reserve.
A LAN Airlines Airbus A340-300, registration CC-CQF performing flight LA-705 from Frankfurt/Main (Germany) to Madrid,SP (Spain), estimated flight time 3:10 hours, was on final approach to Madrid's runway 18L when the crew went around from about 4000 feet MSL at 20:02Z. The aircraft climbed to FL120 and followed delay vectors until 20:22Z (20 minutes) when the crew decided to divert to Valencia. Still on a westerly heading in opposite direction to Valencia the aircraft climbed to FL280 before turning east to Valencia. On descent towards Valencia the crew declared Mayday reporting being low on fuel. The aircraft reached Valencia descending through FL100 at 21:09Z and subsequently lost an engine. The aircraft landed in Valencia at 21:16Z 74 minutes after going around in Madrid with 1300kg/2860lbs of fuel in the left wing tank and 800kg/1760lbs of fuel in the right wing tank remaining substantially below the required minimum final fuel reserve of about 2800kg/6170lbs.
News: Thunderstorms in Madrid on Jul 26th 2012, landings, diversions, fuel emergencies and Ryanair
But not let the truth get in the way of a good story...