Thanks for the prompt reply. Yes, I understand that each ATC region have their own altitude constraints and what I have stated might be applicable in UK only. Sorry for creating this misunderstanding.
What I really what to know if you guys have any ceiling where you can start your fuel dumping .... Say you have an engine failure in flight drifting down to FL300 (EO max alt) .... with the blessing of ATC will you start your fuel dumping on your decent..... assuming all other criteria are met.
Or after completion of ECAM action in a holding pattern at FL250, will you guys consider dumping fuel at that altitude?
A point was brought up during our discussion that dumping fuel at high alt, with low OAT might cause the fuel jettison nozzle to freeze up, which I find it highly unlikely.
Any comments ?
Thank you so much for your time.
Cheers