A318/A319/A320/A321 机组训练手册 FCTM Flight Crew Training Manual(97)

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If the ATC clears for a LOC capture only, the crew will press LOC p/b on the FCU.
If the ATC clears for approach at a significant distance, e.g. 30 nm, the crew should be aware that
the G/S may be perturbed and CAT 1 will be displayed on FMA till a valid Radio Altimeter signal is received.
FINAL APPROACH
Applicable to: ALL
GLIDE SLOPE INTERCEPTION FROM ABOVE
The following procedure should only be applied when established on the localizer. There are a number of factors which might lead to a glide slope interception from above. In such a case, the crew must react without delay to ensure the aircraft is configured for landing before 1 000 ft AAL. In order to get the best rate of descent when cleared by ATC and below the limiting speeds, the crew should lower the landing gear and select CONF 2. Speedbrakes may also be used, noting the considerations detailed in the sub-section "Deceleration and configuration change" earlier in this chapter. The recommended target speed for this procedure is VFE 2 - 5 kt. When cleared to intercept the glide slope, the crew should:
? Press the APPR pb on FCU and confirm G/S is armed.
? Select the FCU altitude above aircraft altitude to avoid unwanted ALT*.
? Select V/S 1 500 ft/min initially. V/S in excess of 2 000 ft/min will result in the speed increasing towards VFE
 

  NORMAL OPERATIONS
ILS APPROACH
A318/A319/A320/A321
FLIGHT CREW TRAINING MANUAL 

A/C high above G/S - recommended g/s capture technique
 
It is vital to use V/S rather than OP DES to ensure that the A/THR is in speed mode rather than IDLE mode. The rate of descent will be carefully monitored to avoid exceeding VFE . When approaching the G/S, G/S*will engage. The crew will monitor the capture with raw data (pitch and G/S deviation). The go-around altitude will be set on the FCU and speed reduced so as to be configured for landing by 1 000 ft.
In such a situation, taking into account the ground obstacles and if ATC permits, it may be appropriate to carry out a 360 °turn before resuming the approach.
MISCELLANEOUS
Close to the ground, avoid large down corrections. Give priority to attitude and sink rate. (Refer to NO-160 TAIL STRIKE AVOIDANCE).
In case of a double receiver failure, the red LOC/GS flags are displayed, ILS scales are removed, the AP trips off and the FDs revert to HDG/VS mode.
In case of an ILS ground transmitter failure, the AP/FD with LOC/GS modes will remain ON. This is because such a failure is commonly transient. In such a case, ILS scales and FD bars are flashing. If R/A height is below 200 ft, the red LAND warning is triggered. If this failure lasts more than several seconds or in case of AUTOLAND warning, the crew must perform a go-around.
ILS RAW DATA
Applicable to: ALL
INITIAL APPROACH
FLYING REFERENCE
The "bird" is to be used as the flying reference. APPROACH PHASE ACTIVATION
　
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