CFM56-5B包H TRAINING MANUAL
MANUFACTURER CODE MOMENTUM
PART NUMBER WEIGHT
EXAMPLE SPECIFIC SERIAL NUMBER INDICATIONS SUB-CONTRACTOR
INDICATIONS
FAN BLADE ROOT
CTC-063-017-01
Page 17
EFFECTIVITY
72-20-00
Dec 00
BASIC ENGINE
ALL CFM56-5B ENGINES FOR A319-A320-A321
CFMI PROPRIETARY INFORMATION
The fan frame module is the main forward structure for mounting the engine onto the airframe. It supports the fan and booster module, the HPC and cowls.
The fan frame module consists of the following 3 major assemblies :
- The fan frame
- The downstream fan inlet case
- The upstream fan inlet case
Page 18
EFFECTIVITY
72-20-00
Dec 00
BASIC ENGINE
ALL CFM56-5B ENGINES FOR A319-A320-A321
CFMI PROPRIETARY INFORMATION
CFM56-5B包H TRAINING MANUAL
OUTER FLANGES FAN FRAME
OUTER RIBS MOUNTING FLANGE
FAN ABRADABLE
LINER DOWNSTREAM FAN INLET CASE
UPSTREAM FAN INLET CASE
FAN FRAME MODULE
CTC-063-018-01
EFFECTIVITY Page 19
72-20-00
Dec 00
ALL CFM56-5B ENGINES FOR A319-A320-A321 BASIC ENGINE
CFMI PROPRIETARY INFORMATION
FAN FRAME MODULE (CONTINUED)
Fan inlet case
The inner surface of the upstream fan inlet case is lined with 6 forward acoustical panels, 6 mid acoustical panels and provides an abradable shroud which faces the fan blade tips.
The inner surface of the downstream fan inlet case is lined with 12 aft acoustical panels.
The fan inlet case also houses the Outlet Guide Vane (OGV) assembly.
Fan frame
The fan frame has 12 radial hollow struts that house various equipment and lines. Compartments formed between the adjacent struts house Variable Bleed Valve (VBV) actuators which, under certain conditions, redirect primary air into the secondary airflow.
The rear face of the fan frame mid section provides the front mounts for the engine and the front flange for the High Pressure Compressor (HPC) section.
Page 20
EFFECTIVITY
72-20-00
Dec 00
BASIC ENGINE
ALL CFM56-5B ENGINES FOR A319-A320-A321
CFMI PROPRIETARY INFORMATION
CFM56-5B包H TRAINING MANUAL
FAN FORWARD ACOUSTICAL FAN MID
STRUT
PANELS ACOUSTICAL OUTLET PANELS GUIDE VANE
FRONT ENGINE MOUNT VBV ACTUATOR
ABRADABLE FAN AFT FAN SHROUD ACOUSTICAL FRAME PANELS CASING
FAN INLET CASE DESIGN
CTC-063-019-01
Page 21
EFFECTIVITY
72-20-00
Dec 00
BASIC ENGINE
ALL CFM56-5B ENGINES FOR A319-A320-A321
CFMI PROPRIETARY INFORMATION
The Outlet Guide Vane (OGV) assembly
The fan OGV assembly consists of the inner shroud and 34 twin vanes.
The inner shroud rear flange is bolted to the fan frame and has 34 apertures to allow passage of the vane inner platforms.
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