4. GPWS Panel (Navigation)

Question 1

What does pressing the SYS pushbutton do?

Answer 1

All basic GPWS alerts (mode 1 to 5) are inhibited.

Question 2

What does an amber FAULT light in the SYS pushbutton indicate on the GPWS panel?

Answer 2

Any failure of GPWS mode 1 through 5

Question 3

What effect, if any, does an amber FAULT light in the SYS pushbutton have on the TERR mode?

Answer 3

No effect at all

Question 4

Describe a situation when a pilot might press LDG FLAP 3.

Answer 4

• To avoid nuisance warning in case of landing in CONF 3.

• In this case, LDG MEMO displays FLAPS…CONF 3 instead of CONF FULL

Question 5

Describe a situation when a pilot might press the FLAP MODE pushbutton.

Answer 5

• To avoid nuisance warning in case of landing with flaps setting reduced

• FLAP SYS 1 (2) FAULT would require selection of FLAP MODE off

Question 6

What effect, if any, does the failure of TERR mode have on basic GPWS?

Answer 6

No effect whatsoever