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OPERATING MANUAL
PROCEDURES
ABNORMAL AND EMERGENCY PROCEDURES
INDICATING/RECORDING
A330/A340 FLEET PRO-ABN-31 P 15/22
FCOM 19 AUG 10
EIS DISPLAY DISCREPANCY (Cont'd)
DU (affected)...........................................................................................................AS RQRD
L2 The DU can be switched OFF.
A330/A340 FLIGHT CREW
OPERATING MANUAL
PROCEDURES
ABNORMAL AND EMERGENCY PROCEDURES
INDICATING/RECORDING
A330/A340 FLEET PRO-ABN-31 P 16/22
FCOM 19 AUG 10
DISPLAY UNIT FAILURE
Applicable to: ,
Impacted DU: NONE
Note: This Temporary Documentary Unit (TDU) is created to provide operators with TDU
example for R0.
It does not provide operational information.
�� The DU is blank (with or without a large letter “F” in amber), or the display is distorted:
Procedure modified for the TDU example.
�� INVALID DISPLAY UNIT message is displayed:
This may be caused by a DU failure.
FOR AUTOMATIC DU RECOVERY......................................................WAIT MORE THAN 40 s
�� IF DU IS AUTOMATICALLY RECOVERED:
No crew action is required.
�� IF DU IS NOT RECOVERED:
Non-recovered DU..................................................................................................AS RQRD
The DU can be switched off.
�� The INVALID DATA message appears (not on all DUs):
This failure may be because of a DMC FAULT, or a communication interruption between the
DMC and DU.
DMC SWITCHING (EFIS or ECAM)............................................................................. AS RQRD
�� If unsuccessful:
DU (affected).................................................................................................. OFF THEN ON
Note: The ND display may disappear, if too many waypoints and associated information
are displayed. Reduce the range, or deselect WPT or CSTR, and the display will
automatically recover, after about 30 s.
�� The INVALID DATA message appears on all DUs :
The autopilot, autothrust and MCDU navigation data are still available, and may be used.
FOR AUTOMATIC DUs RECOVERY ...................................................WAIT MORE THAN 40 s
�� IF ALL DUs ARE AUTOMATICALLY RECOVERED:
No crew action is required.
To be continued on next page
A330/A340 FLIGHT CREW
OPERATING MANUAL
PROCEDURES
ABNORMAL AND EMERGENCY PROCEDURES
INDICATING/RECORDING
A330/A340 FLEET PRO-ABN-31 P 17/22
FCOM 19 AUG 10
�� IF ONE OR MORE DUs ARE NOT RECOVERED:
Non-recovered DUs.........................................................................................OFF FOR 40 s
Non-recovered DUs............................................................................ BACK ON sequentially
�� If the initial failure re-occurs (the INVALID DATA message appears on all DUs),
when switching a given DU back ON:
Apply the entire procedure again, from the beginning.
Leave this specific DU permanently OFF.
�� The INVALID DATA message appears on the ECAM DUs (EWD and SD):
ECAM DMC SWITCHING............................................................................................................2
This action allows the recovery of both ECAM DUs.
�� INVERSION OF THE EWD AND THE SD:
ECAM UPPER DISPLAY .....................................................................................OFF THEN ON
The same action on the EIS DMC SWITCHING selector produces the same effect.
A330/A340 FLIGHT CREW
OPERATING MANUAL
PROCEDURES
ABNORMAL AND EMERGENCY PROCEDURES
INDICATING/RECORDING
A330/A340 FLEET PRO-ABN-31 P 18/22
FCOM 19 AUG 10
DISPLAY UNIT FAILURE
Applicable to:
Impacted DU: NONE
Note: This Temporary Documentary Unit (TDU) is created to provide operators with TDU
example for R0.
It does not provide operational information.
�� The AFFECTED DU IS BLANK or the DISPLAY IS DISTORTED:
Procedure modified for the TDU example.
�� DIAGONAL LINE ON THE AFFECTED DU:
This failure may be because of a DMC FAULT, or a communication interruption between the
DMC and DU.
DMC SWITCHING (EFIS or ECAM) ............................................................................AS RQRD
�� If unsuccessful:
DU (affected).................................................................................................. OFF THEN ON
Note: The ND display may disappear, if too many waypoints and associated information
are displayed. Reduce the range, or deselect WPT or CSTR, and the display will
automatically recover, after about 30 s.
�� DIAGONAL LINE ON ECAM DUs (EWD and SD):
ECAM DMC SWITCHING............................................................................................................2
　
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