Hi there, is anyone able to advise on the following please? FO 2,500 hrs, 1,200hrs A320.
On A320, with ECAM HYD G+Y SYS LO
PR selected on the FlySmart+ landing performance app, Vapp is given as Vref + 25kt.
FCOM/PRO/ABN/FCTL/ FLAPS/SLATS FAULT LOCKED gives approach speed depending on slats/flaps position displayed on the upper ECAM display. With above hydraulics failure you would retain full use of slats but have no flaps, so Vref 25kt makes sense per the tables content.
However, if I add a second failure/ECAM to the landing performance calculation, e.g. F/CTL SLATS LOCKED - SLATS < 1 the Vapp is still given as Vref +25kts, where as I believe it should be higher Vref + 45kt according to FCOM table.
So two closely related questions if I may:
1. How does FlySmart+ deal with multiple ECAMs of this nature? From experimentation it seems to prioritise the dual HYD ECAM above F/CTL ones.
2. What's the best way to proceed if this were to be encountered? It seems to me there is an inherent threat present here because (reference above example) one could fly the approach at selected speed Vref +25kt when the actual slats position would dictate the higher speed Vref + 45kt is more appropriate.
Of course I may have missed something! Many thanks in advance for your time.