Originally Posted by wheelbarrow
With correct inbound ils course selected for rwy,corresponding to programmed fmc arrival rwy then the egpws will not object to where you put it down.you will have what appears to be a map shift( big tell tale if you have gps nav), but your visual and looking out-...perhaps a little system study...and as stated earlier..please put fingers away...
plus your comments reflecting irish standards...dont deserve a reply
Wheelbarrow, don't be so quick to dismiss - I think he's referring to the Terrain Clearance Floor (TCF) function of the EGPWS, and he may have a point.
Its supposed to warn if you drop below a specified profile during descent toward the runway. It may not have triggered since the airports are close together, or perhaps it was actually satisfied that the landing runway was BallyKelly? That might be a weakness in the system then.
It is not the same as the terrain/GPWS function.
Read here.