janeyTA
To be fair even an 800 will be RTOM from runway 03 due to terrain, based on a typical Lanzarote day wind and a temp wise then 74t is about the best you can lift so around a 5t penalty. less restricted if SFP spec.i guess fuel for BPL would be around 14/15t.
The problem with a tech stop is it always takes longer than you think, you normally don't get re fuel priority over other schedules traffic, you may get a slot especially North bound, bird strike risk at FAO is moderate - high and of course a 2 sector day becomes a 3 sector day, so say a tech stop at FAO, the the approach, taxy in/out re fuel, doors open, fire cover, paper work and back out will be at 60 minutes
It could well be that Jet2 are using reduced contingency fuel at the planing stage and then an inflight assessment before the DP?