You have to remember that for LCC, if you divert to a nearby field, you will invariably, have the ac manufacturers' fitted low fuel warnings going off way before to get minimum land fuel/Final reserve. So unless the operator has modified the low fuel light limit (unlikely) you will be messing about with the QRH and checklists when you should be concentrating on the approach to yr alternate. I remember doing this when diverting from Bristol to Cardiff when the Bris runway got 'blacked' and shut for an 'indeterminate period' with about 3-4 other ac inbound to BRI. We were one of those and made an early decision to divert to ahead of the queue and were fed into the Cardiff pattern straight from Bristol approach - but the low fuel lights came on just as we got handed over on an intecept to the Cardiff ILS localizer. Very distracting and somewhat disconcerting - lucky it was good weather!
IIRC for the B7373, the low fuel amber light came on at 2000kg (1000kg per side) but the Final Reserve at Cardiff was 1500kg.....
Last edited by Flipster130; 20th Nov 2023 at 09:31.
Reason: addition