Warning Systems

Question 1

What airports are in the EGPWS database?

Answer 1

All hard surfaced runways longer than 3500ft.

Question 2

What are the modes of the EGPWS?

Answer 2

Mode 1 - Excessive descent rate - SINKRATE
Mode 2 - Excessive terrain closure - -TERRAIN
Mode 3 - Altitude loss after takeoff - DON’T SINK
Mode 4 - Unsafe terrain clearance - TOO LOW ___
Mode 5 - Excessive glideslope deviation - GLIDESLOPE
Mode 6 - Advisory call-outs - 2500, 500

Question 3

What is monitored by the Takeoff Warning Horn?

Answer 3

The horn will sound if the torque is above 50% and:

• Spoilers (extended)
• Elevator Trim (out of TO range)
• Parking brake lever (park)
• Condition levers (not 1020)
• Flap position (more than 20 or less than 3.6)

Question 4

When is TCAS inhibited?

Answer 4

CLIMB - above 24000 or low oil pressure.
INCREASE CLIMB - gear down and flaps 35, autofeather armed or flap override switch on with gear down
INCREASE DESCEND - below 1450ft AGL

TA ONLY at 1000ft AGL AND low oil pressure

TA ONLY below 600ft AGL

No aural advisories below 400ft AGL