What electrical source powers LGCIU1?
A320.
I thought LGCIU1 was powered by the DC ESS BUS but the Abnormal and Emergency Procedures does not list LGCIU1 under the Inop Sys for a DC ESS BUS Fault. In the event of a DC BUS 2 fault you lose LGCIU2 and if you have both these faults at the same time a gravity gear extension is required, presumably because of the loss of both LGCIUs, implying the DC ESS is the source powering LGCIU1, I don’t imagine it being on the SHED. Can anyone confirm this, it’s a shame the old FCOM 1-4 used to list quite clearly and I don’t have a copy. |
Thanks,
I see the DC GND/FLT supply from TR2 but the list of loads that can be energized does not include LGCIU1. Do you have a reference I can follow up? I see LGCIU1 is available in EMER ELEC so that seems logical that DC ESS Is powering it via ESS TR when TR2 is not available. I cannot find any description of this in the FCOM though. Very frustrating. Can anyone post a list of kit powered by the DC FLT BUS, I’m interested to know how a DC FLT BUS Fault would present itself on ECAM because it sounds like a minefield to diagnose. |
Yes please, my FCOM stops at 32-10-40
I'm intrigued now, what’s in 32-10-50?! |
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I'm not qualified anymore on the A320 and have no FCOM available.
We have a genius at our airline creating wonderful summaries. Maybe this graphic helps.... free download at pmgasser(dot)ch |
https://cimg1.ibsrv.net/gimg/pprune....d58e9ae3f1.png
From the 2008 edition. Those are now moved to ABN, at the beginning of each individual warning / procedure. |
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