Popay,
Just to clear things up in my mind.
For operational reasons you have dispatched with minimum flight plan fuel. You arrive at your destinations MAP with Diversion fuel plus Final reserve fuel.
There is a runway incursion that requires you to 'go around'.
Can you come back around for a second appraoch even though you now only have diversion plus final reserve fuel remaining?
Are you only required by JAR to declare a MAYDAY if you are going to land with less than final reserve?
Thanks