CFM56-5B包H TRAINING MANUAL
REVERSER
DESIGN AND OPERATION
CTC-063-005-01
Page 3
EFFECTIVITY
72-00-00
Dec 00
BASIC ENGINE
ALL CFM56-5B ENGINES FOR A319-A320-A321
CFMI PROPRIETARY INFORMATION
The CFM56-5B engine uses a maintenance concept called ‘On Condition Maintenance’. This means that the engine has no periodic overhaul schedules and can remain installed under the wing until something important occurs, or when lifetime limits of parts are reached.
For this reason, to monitor and maintain the health of the engine, different tools are available, which are :
- Engine performance trend monitoring
- Borescope inspection
- Lubrication particles analysis
- Spectrometric Oil Analysis Program (S.O.A.P)
- Engine vibration monitoring system
Page 4
EFFECTIVITY
72-00-00
Dec 00
BASIC ENGINE
ALL CFM56-5B ENGINES FOR A319-A320-A321
CFMI PROPRIETARY INFORMATION
CFM56-5B包H TRAINING MANUAL
TREND MONITORING VIBRATION MONITORING
BORESCOPE INSPECTION LUBE PARTICLE ANALYSIS
CONDITION MONITORING
CTC-063-009-02
Page 5
EFFECTIVITY
72-00-00
Dec 00
BASIC ENGINE
ALL CFM56-5B ENGINES FOR A319-A320-A321
CFMI PROPRIETARY INFORMATION
The CFM56-5B engine consists of two independent rotating systems :
- The low pressure system rotational speed is
designated N1.
- The high pressure system rotational speed is
designated N2.
The engine rotors are supported by 5 bearings, identified in manuals as numbers 1 thru 5, where No. 1 is the most forward and No. 5 the most aft. These bearings are housed in 2 dry sump cavities provided by the fan and turbine frames.
Engine structural rigidity is obtained with short lengths between two main structures (frames).
The accessory drive system uses energy from the high pressure compressor rotor to drive the engine and aircraft accessories. It also plays a major role in starting.
Page 6
EFFECTIVITY
72-00-00
Dec 00
BASIC ENGINE
ALL CFM56-5B ENGINES FOR A319-A320-A321
CFMI PROPRIETARY INFORMATION
CFM56-5B包H TRAINING MANUAL
5 BEARINGS
LP SYSTEM
ACCESSORY DRIVE 2 FRAMES
HP SYSTEM
2 SUMPS
ENGINE GENERAL CONCEPT
CTC-063-006-01
Page 7
EFFECTIVITY
72-00-00
Dec 00
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