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PROCEDURES
SUPPLEMENTARY PROCEDURES
INFORMATION SYSTEMS
A330/A340 FLEET PRO-SUP-46 P 1/58
FCOM 19 AUG 10
ATSU INITIALIZATION
Applicable to:
ATSU initialization must be carefully completed, because successful datalink communications require
that all information be correctly entered, in accordance with the ICAO flight plan.
ATSU is automatically initialized, provided a list of Service Providers has been scanned, and
provided the following 3 parameters have been received and validated by the ATSU :
Aircraft ‐ Registration Number (ARN)
‐ Airline two-letter Identity Code (A/L ID for datalink service providers)
‐ Airline three-letter Identity Code (A/L ID for ATC)
If one of the above 4 conditions is not fulfilled, then ATSU or datalink are not available:
‐ The ECAM displays an ATSU FAULT warning, with the ATSU INIT FAULT line procedure, and
‐ The MCDU scratchpad displays a message to request flight crew action.
A manual entry of the missing parameter reinitializes the ATSU and clears the ECAM and MCDU
message.
A330/A340 FLIGHT CREW
OPERATING MANUAL
PROCEDURES
SUPPLEMENTARY PROCEDURES
INFORMATION SYSTEMS
A330/A340 FLEET PRO-SUP-46 P 2/58
FCOM 19 AUG 10
If ARN is not valid
The MCDU scratchpad displays the “ENTER A/C REGISTER” message. After clearing the
scratchpad, the crew writes the ARN on the scratchpad. Pressing the 2L key on the COMM INIT
page enters the ARN in the 2L field.
If the A/L ID is not valid:
The MCDU scratchpad displays the “ENTER A/L IDENT” message. After clearing the
scratchpad, enter the two-letter A/L ID code on the scratchpad. Press the 3L key to enter the A/L
ID code in the 3L field. Repeat the same operation for the three-letter A/L ID code, by using the
4L key instead of the 3L key.
If no VHF Service Providers have been selected:
The MCDU scratchpad displays the “ENTER VHF3 SCAN MASK” message.
On the VHF3 SCAN MASK SD page , select a Service Providers’ list, in the airline priority order,
and activate the VHF SCAN MASK function.
Example : To select Service Providers SITA 725 and ARINC :
1. Press the 5L key : The star next to the ERASE indication disappears, then reappears.
2. Press the 1L key to select SITA 725 : The SELECT indication goes off, and the priority number
of selection # 1 appears.
3. Press the 1R key to select ARINC : The SELECT indication goes off, and the priority number
of selection # 2 appears.
4. Press the 5R key to activate the VHF SCAN MASK function : The star next to the SCAN
MASK LOAD indication disappears, then reappears.
A330/A340 FLIGHT CREW
OPERATING MANUAL
PROCEDURES
SUPPLEMENTARY PROCEDURES
INFORMATION SYSTEMS
A330/A340 FLEET PRO-SUP-46 P 3/58
FCOM 19 AUG 10
Note: Modification of the SCAN MASK setting may result in the loss of air-ground VHF datalink
communication. Therefore, the SCAN MASK setting should not be modified by the crew,
unless they have been instructed to do so.
ATSU INITIALIZATION
Applicable to:
ATSU initialization must be carefully completed, because successful datalink communications require
that all information be correctly entered, in accordance with the ICAO flight plan.
ATSU is automatically initialized, provided a list of Service Providers has been scanned, and
provided the following 3 parameters have been received and validated by the ATSU :
Aircraft ‐ Registration Number (ARN)
‐ Airline two-letter Identity Code (A/L ID for datalink service providers)
‐ Airline three-letter Identity Code (A/L ID for ATC)
A330/A340 FLIGHT CREW
OPERATING MANUAL
PROCEDURES
SUPPLEMENTARY PROCEDURES
INFORMATION SYSTEMS
A330/A340 FLEET PRO-SUP-46 P 4/58
FCOM 19 AUG 10
If one of the above 4 conditions is not fulfilled, then ATSU or datalink are not available:
‐ The ECAM displays an ATSU FAULT warning, with the ATSU INIT FAULT line procedure, and
‐ The MCDU scratchpad displays a message to request flight crew action.
A manual entry of the missing parameter reinitializes the ATSU and clears the ECAM and MCDU
message.
If ARN is not valid
The MCDU scratchpad displays the “ENTER A/C REGISTER” message. After clearing the
scratchpad, the crew writes the ARN on the scratchpad. Pressing the 2L key on the COMM
CONFIG page enters the ARN in the 2L field.
If the A/L ID is not valid
The MCDU scratchpad displays the “ENTER A/L IDENT” message. After clearing the
scratchpad, enter the two-letter A/L ID code on the scratchpad. Press the 3L key to enter the A/L
ID code in the 3L field. Repeat the same operation for the three-letter A/L ID code, by using the
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A330/A340机组操作手册 FLIGHT CREW OPERATING MANUAL FCOM 11(105)
