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? An appropriate ACTIVE F-PLN (i.e. the intended lateral and vertical trajectory is entered, and the sequencing of the F-PLN is monitored).
 
MAIN INTERFACES WITH THE AP/FD
 
*The DIR TO function is an exception to this rule.
 
OPERATIONAL PHILOSOPHY
AP / FD / ATHR
 
OPERATIONAL RECOMMENDATION
With the FMS, anticipate flight plan updates by: Preparing EN ROUTE DIVERSIONS, DIVERSION TO ALTN, CIRCLING, LATE CHANGE OF RWY in the SEC F-PLN. This enables the MCDU to be used for short-term actions.
TASKSHARING AND COMMUNICATIONS
The FCU and MCDU must be used, in accordance with the rules outlined below, in order to ensure:
? Safe operation (correct entries made)
? Effective inter-pilot communication (knowing each other’s intentions)
? Comfortable operations (use "available hands", as appropriate)
 
AP/FD MONITORING
The FMA indicates the status of the AP, FD, and A/THR, and their corresponding operating modes. The PF must monitor the FMA, and announce any FMA changes. The flight crew uses the FCU or MCDU to give orders to the AP/FD. The aircraft is expected to fly in accordance with these orders. The main concern for the flight crew should be:
WHAT IS THE AIRCRAFT EXPECTED TO FLY NOW ?
WHAT IS THE AIRCRAFT EXPECTED TO FLY NEXT ?
If the aircraft does not fly as expected:
 
Or, disengage the AP, and fly the aircraft manually. 1 AUTOPILOT (AP) OPERATION
The AP can be engaged within the normal flight envelope, 5 s after liftoff and at least 100 ft. It automatically disengages, when the aircraft flies significantly outside the normal flight envelope limits.
 
OPERATIONAL PHILOSOPHY
AP / FD / ATHR
 
The AP cannot be engaged, when the aircraft is outside the flight envelope. Flight control laws are designed to assist the flight crew to return within the flight envelope, in accordance with the selected strategy.
The AP may be used:
? For autoland: Down to the aircraft landing rollout, in accordance with the limitations indicated in the FCOM
? For other approaches, the minimum height is :
 The MDA for straight in Non Precision Approach
 The DA for straight in LNAV/VNAV approach
 MDA - 100 ft for circling approach
 160 ft for ILS approach with CAT1 displayed on
 500 ft for all others phases.
It may also be used, in case of:
? Engine failure: Without any restriction, within the demonstrated limits, including autoland
? Abnormal configuration (e.g. slats/flaps failure): Down to 500 ft AGL. Extra vigilance is required in these configurations. The flight crew must be ready to take over, if the aircraft deviates from its intended, safe flight path.
The sidestick's instinctive disconnect pushbutton should be used to disengage the AP. Instinctive override action on the sidestick consists of pushing or pulling the sidestick, when the AP is engaged.
　
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本文鏈接地址：A330/A340 機組訓練手冊 FCTM Flight Crew Training Manual 1(14)