SUPPLEMENTARY INFORMATION
TCAS
A318/A319/A320/A321
FLIGHT CREW TRAINING MANUAL
If a RA is generated:
? The flight crew must always follow the TCAS RA orders in the correct direction, even: ‐ If the TCAS RA orders are in contradiction with the ATC instructions
‐ At the maximum ceiling altitude with CLIMB, CLIMB or INCREASE CLIMB, INCREASE CLIMB TCAS RA orders
‐ If it results in crossing the altitude of the intruder.
CAUTION If a pilot does not follow a RA, he should be aware that the intruder may be TCAS equipped and may be maneuvering toward his aircraft in response to a coordinated RA. This could compromize safe separation.
? The PF disconnects the AP, and smoothly and firmly follows the Vertical Speed Indicator (VSI) green sector within 5 s, and requests that both FDs be disconnected.
Note: Both FDs must be disconnected once APs are disconnected:
‐ To ensure autothrust speed mode
‐ To avoid possible confusion between FD bar orders and, TCAS aural and VSI orders
? The PNF disconnects both FDs, but will not try to see intruders.
? The PF will avoid excessive maneuvers, and keep the Vertical Speed outside the red area of the VSI and within the green area. If necessary, the PF must use the full speed range between Valpha max and Vmax.
? The PNF must notify ATC.
? The flight crew should never maneuver in the opposite direction of the RA, because TCAS maneuvers are coordinated.
? In final approach, i.e. "CLIMB", "CLIMB NOW", "INCREASE CLIMB", the flight crew will initiate a go-around.
When clear of conflict:
? The flight crew must resume normal navigation, in accordance with ATC clearance, and using the AP, as required.
SUPPLEMENTARY INFORMATION
TCAS
A318/A319/A320/A321
FLIGHT CREW TRAINING MANUAL
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SUPPLEMENTARY INFORMATION
USE OF RADAR
A318/A319/A320/A321
FLIGHT CREW TRAINING MANUAL
GENERAL
Applicable to: ALL
The weather radar has two main functions:
? Weather detection
? Mapping.
Weather detection is the primary function. For weather detection, the radar detects precipitation droplets. The strength of the echo is in proportion to the droplet size, composition and quantity (e.g. the reflection of water particles is five times greater than ice particles of the same size). Therefore, the weather radar does not detect weather that has small droplets (e.g. clouds or fog), or that does not have droplets (e.g. clear air turbulence).
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