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EFFECTIVITY
ALL CFM56-5B ENGINES FOR A319-A320-A321
CFMI PROPRIETARY INFORMATION CFDS MESSAGE
INTERROGATION
FAULT DETECTION
& ANNUNCIATION Page 46
Nov 02
CFM56-5B TRAINING MANUAL
AIRCRAFT INTEGRATED DATA SYSTEM
EFFECTIVITY
ALL CFM56-5B ENGINES FOR A319-A320-A321
CFMI PROPRIETARY INFORMATION AIDS MESSAGE
INTERROGATION
FAULT DETECTION
& ANNUNCIATION Page 1 Nov 02
CFM56-5B TRAINING MANUAL
THE AIRCRAFT INTEGRATED DATA SYSTEM (AIDS).
The AIDS is an option that is organized around the Data Management Unit (DMU), which is reconfigurable via Ground Support Equipment (GSE). The DMU is connected to various aircraft systems and receives data from them over ARINC429 databuses.
One of the functions of the DMU is the generation of reports as a result of specific events defined by trigger conditions. The DMU is able to record data either by the use of an optional Digital Aids Recorder (DAR), optional Smart Access Recorder (SAR), or integrated PCMCIA interface. The storage medium of the DAR is a magnetic tape cartridge, or optical disk, while the SAR stores data in a solid state mass memory. The PCMCIA interface can accept disks to store SAR data, DAR data, or standard AIDS reports.
While the CFDS is intended to assist line maintenance in isolating faults detected by the BITE functions of the aircraft systems, the main objective of AIDS is preventative. Long term trend monitoring of the engines avoids expensive unscheduled maintenance. Continuous monitoring of the engine is also intended to substitute fixed interval inspections with on-demand maintenance.
In addition, AIDS is used for various tasks such as hard landing detection, special investigations and troubleshooting on a system level.
EFFECTIVITY
ALL CFM56-5B ENGINES FOR A319-A320-A321
CFMI PROPRIETARY INFORMATION
CFM56-5B TRAINING MANUAL
CTC-231-088-00 AIDS MAIN MENU
EFFECTIVITY
ALL CFM56-5B ENGINES FOR A319-A320-A321
CFMI PROPRIETARY INFORMATION AIDS MESSAGE
INTERROGATION
FAULT DETECTION
& ANNUNCIATION Page 3
Nov 02
CFM56-5B TRAINING MANUAL
THE AIRCRAFT INTEGRATED DATA SYSTEM (AIDS). PARAMETER CALL-UP.
From the AIDS main menu, selection of Call-up parameter will display a sub-menu with three selections : - Parameter label call-up.
- Parameter alpha call-up.
- Menus.
Label call-up.
This function enables direct access to all parameters transmitted on the ARINC429 databuses, connected to the DMU, for on-line display. The values displayed are in real time and refreshed once per second.
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