(c)
 Failure report The failure messages are automatically transmitted by the CFDIU to the ATSU.

 (d)
 POST-FLIGHT REPORT (on ground) or Current Flight Report (in flight) The CFDIU automatically transmits the POST-FLIGHT REPORT to the ATSU at the end of the flight leg.

 (e)
 Class 3 Report (on ground) The CFDIU transmits the Class 3 reports to the ATSU on uplink or on manual request.

 (f)
 Servicing Report (optional) To generate this report, the CFDIU requires Documentary Data from the ATSU at power-up and at flight phase transition 9 to 10. It then transmits the Servicing Report to the ATSU automatically or on uplink request.

 The format of the report is as follows:
 ---------------------------------------------------
| OCTET NUMBER | CONTENT |
 ---------------------------------------------------
| 1 | "M" Origin Code = ATSU |
 ---------------------------------------------------
| 2 | "D" Purpose Code = |
 | | Documentary Data |
 |--------------------------------------------------
| 3 | "F" Destination Code = CFDIU |
 ---------------------------------------------------
| 4 | "0" |
 ---------------------------------------------------
| 5 | "0" |
 ---------------------------------------------------
| 6-9 | OUT (HH/MM) |
 ---------------------------------------------------
| 10-13 | OFF (HH/MM) |
 ---------------------------------------------------
| 14-17 | ON (HH/MM) |
 ---------------------------------------------------
| 18-21 | IN (HH/MM) |
 ---------------------------------------------------
| 22-25 | Actual Departure |
 ---------------------------------------------------
| 26-29 | Actual Arrival |
 ---------------------------------------------------
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 ---------------------------------------------------
| OCTET NUMBER | CONTENT | ---------------------------------------------------| 30-37 | Captain Name | ---------------------------------------------------| 38-45 | First Officer Name | ---------------------------------------------------
(3)
 FMGC AOC application The AOC application is called ACARS functions in the FMGC. The ATSU downlinks FMGC reports to inform the airline of the configuration of the aircraft (flight plan reports, position reports,etc...). The ATSU Router determines which FMGC is intended to receive the uplink message by reference to the sub-label characters.

 (4)
 Cabin Terminals AOC application The transmission of the downlink reports is only automatic or on ground request.

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 3. Interface
_________

 A. On-Board Systems Interface
 The AOC applications are hosted into the ATSU and are interfaced with the following on-board peripherals:
 -Clock
 -CFDIU 1 & 2
 -CPMU
 -DIU
 -DMC 1, 2 & 3
 -DMU
 -FMGC 1 & 2
 -FWC 1 & 2
 -LGCIU.
 -SDAC 1 & 2
 (1) Input parameters The Standard AOC application acquires the following parameters from on-board peripherals:
 -------------------------------------------------------------------------------
| PARAMETER NAME ------------------------ | FROM -------------------- | COMMENTS ----------------------- |------------
| FLIGHT IDENTIFICATION  | ATSU  | Two characters for A/L ID and |
 |  |  | four characters for flight  |
 | ---------------- | ---------------------------- | number -------------------------------- |---
| AIRCRAFT REGISTRATION NUMBER | ATSU -------------------------------------------- | Seven characters --------------------------- |--------
| SENSOR INPUTS ----------------------- | --------------------- | ------------------- |----------------
|  DOORS  | SDAC  | AOC acquires the status (open/|
 | ----- ------------------ | --------------------- | closed) of all types of doors |-----------------------------------
| ----- PARKING BRAKE STATUS ------------------------- | SDAC -------------- | --------------------------- |--------
| ----- ENGINES RUNNING ------------------------- | FWC -------------- | --------------------------- |--------
| ----- NOSE STRUT ------------------------- | LGCIU -------------- | Discrete signal --------------------------- |--------
| ----- FUEL ON BOARD ------------------------- | FMGC -------------- | --------------------------- |--------
　
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