CFM56-5B TRAINING MANUAL
EFG
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VIBRATION SENSING

EFFECTIVITY
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ALL CFM56-5B ENGINES FOR A319-A320-A321
ENGINE SYSTEMS Jan 03

CFMI PROPRIETARY INFORMATION
CFM56-5B  TRAINING MANUAL
EFG
VIBRATION SENSING
Sensing system introduction.
The engine vibration sensing system enables the crew to monitor engine vibration on the ECAM system, and also provides maintenance staff with the following:
-Vibration indication.
-Excess vibration (above advisory levels).
-Storage of balancing data.
- Bite and MCDU communication with other A/C
systems.

-Accelerometer selection.
-Frequency analysis for component vibration search

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ALL CFM56-5B ENGINES FOR A319-A320-A321
ENGINE SYSTEMS Jan 03

CFMI PROPRIETARY INFORMATION
EFG VIBRATION SENSING  CFM56-5B  TRAINING MANUAL 
Engine/aircraft vibration systems. 
The engine/aircraft vibration sensing system is made up of the following devices: 
-The engine sensors. -The Engine Vibration Monitoring Unit (EVMU), which interfaces with engine and aircraft systems. 
Vibration information is provided to the following: 
-The ECAM system, for real time monitoring. -The CFDS (Centralized Fault Display System). -The AIDS (Aircraft Integrated Data System). 
The CFDS system is used to: 
-Recall and print previous leg events. -Initiate tests. -Reconfigure engine sensors. 
The AIDS system is used to perform: 
-Troubleshooting. -Condition monitoring. 
EFFECTIVITY ALL CFM56-5B ENGINES FOR A319-A320-A321 CFMI PROPRIETARY INFORMATION  77-31-00 ENGINE SYSTEMS  Page 4 Jan 03 

CFM56-5B TRAINING MANUAL
EFG

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CTC-201-244-01
EFFECTIVITY
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ALL CFM56-5B ENGINES FOR A319-A320-A321
ENGINE SYSTEMS Jan 03

CFMI PROPRIETARY INFORMATION
CFM56-5B TRAINING MANUAL
EFG
VIBRATION SENSING
Engine Vibration sensing components.
The vibration sensing components installed on the engine consist of:
-The #1 bearing vibration sensor.
-The Turbine Rear Frame (TRF) vibration sensor. The vibration information produced by these two accelerometers is only provided to the EVMU.

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ENGINE VIBRATION SYSTEM
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EFFECTIVITY
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ALL CFM56-5B ENGINES FOR A319-A320-A321
ENGINE SYSTEMS Jan 03

CFMI PROPRIETARY INFORMATION
CFM56-5B TRAINING MANUAL
　
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