What does an amber fault light in the SYS pb indicate on the GPWS panel?
Any failure of GPWS basic modes
Does a fault light in the SYS pb on the GPWS panel affect terrain mode?
No
When would you press the FLAP MODE pb?
To avoid nuisance warnings when landing with flaps less than 3
What does FLAP MODE OFF light indicate?
“Too low flaps” inhibited for a landing with landing with flaps less than 3
If the TERR mode failed does it affect the basic GPWS?
No