Systems Guide
A318/A319/A320/A321
Professional
SYSTEMS
Systems guide
Vol
4
04-03-58
11 July 2018
• Runway End
• Taxiway Take-off
• Insufficient Runway Length
• Extended Holding on Runway
• Approaching Short Runway (in air)
• Taxiway Landing
• Flaps Setting (Take-off and Landing)
• Landing Distance Remaining
• Distance Remaining (Rejected Take-off)
• Excessive Approach Speed
• Excessive Approach Angle
• Unstable Approach
• Altimeter settings (above and below Transition)
RADIO ALTIMETER / TCAS
Two radio altimeters (one for each side of the cockpit provide the altitude above the ground and trigger
the automatic call out in the final stages of the landing. The Traffic Collision and Avoidance System (TCAS)
will warn of traffic that could cause danger to the aircraft. Transponder codes are set with the number
keys.
TCAS / XPDR Selector:
• OFF: System deactivated
• STBY: TCAS and Transponder are in warm-up mode
• ALT EPTG OFF: Test mode
• XPDR: Transponder is ON, TCAS in warm-up mode
• TA ONLY: ATC/TCAS system is ON, advisories OFF
• TA/RA: ATC/TCAS system is ON, advisories ON
Above and Below Switch:
• Mode “N”: >= - 2700 ft and <= +2700 ft
• Mode “ABV: >= - 2700 ft and <= +7000 ft
• Mode “BLW”: >= - 7000 ft and <= +2700 ft