737NG Ground spoiler system
Following another thread, and some very useful info (thanks 'mono') it appears that failure of the GS Interlock would cause an intermittent horn when airborne.
I need a little help here please, techies (and CaptS&L, of course) - as this component is undocumented in 'Pilot's Notes' and MEL/DDM - with this:-
1) I guess the horn would sound at lift-off, thereby being a pretty good clue that you do not have a 'cabin altitude' problem
2) Could any sort of failure later cause the horn to sound?
3) I assume that it cannot be silenced until next landing unless the CB is pulled?
4) What, if anything, would determine a call for GS extension in the air with the failure?
5) I am assuming that the PSEU also controls GS deployment?
6) Presumably therefore there would be no adverse effect on roll control in a failure mode?