This has happened before recently, but not fuel contamination, something to do with a pump for the pipe line if my memory does not fail me, maybe 12 months + ago. Anyone remember ?. Jibes about 3rd world airport std are neither true or accurate in my experiance of Manchester and way too many 3rd world airports. When the lights go out when you are in the terminal or taxing for 10min (India / Africa) then you know you are in the 3rd world !!.