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CFM CFM56 Series User Manual
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EFFECTIVITY
ALL CFM56 ENGINES
CFMI PROPRIET
AR
Y INFORMA
TION
CFM56-ALL
TRAINING MANU
AL
COMBUSTION
CHAMBER
BORESCOPE
INSPECTION
P
age 117
Sep 03
CTC-229-043-00
TOC
117
119
Table of Contents
Lexis
6
Abbreviations
7
Imperial/Metric Conversions
15
Table of Contents
16
Table of Contents
17
Introduction
18
Engine Vibration Monitoring System
19
Lubrication Particles Analysis
19
Engine Performance Trend Monitoring
19
On Condition Maintenance
19
Condition Monitoring
20
Introduction
20
Scheduled/Unscheduled Inspection
21
Scheduled and Unscheduled Inspections
22
Introduction
22
Basic Engine Particulars
24
Main Characteristics
25
Engine Sections View
26
Ctc-229
26
Fan and Booster
27
Booster Stator
27
Booster Rotor
27
Borescope Ports
27
Fan and Booster Diagram
28
The High Pressure Compressor (HPC)
29
Front Stator
29
Rear Stator
29
Rotor
29
High Pressure Compressor (HPC) Diagram
30
HPC Borescope Ports Location
32
Combustor Section
33
Single Annular Combustor (SAC)
33
Combustion Section (SAC) View
34
Double Annular Combustor (DAC)
35
Double Annular Combustor (DAC) View
36
Combustion Chamber Borescope Ports View
38
The High Pressure Turbine (HPT) and Stage 1 LPT Nozzle
39
The HPT and Stage 1 LPT Nozzle
40
HPT and Stage 1 LPT Nozzle Borescope Ports
42
The Low Pressure Turbine (LPT)
43
Low Pressure Turbine Module View
44
Accessory Drive System
45
Accessory Drive Section View
46
Requirements
48
Borescope Access Limitations
49
Borescope Equipment Temperature Limitations
51
Aircraft Maintenance Manual Inspection Criteria
54
Recording of Defects
55
Photo Recording
55
Inspection Record and Maps
56
Materials and Equipment
57
Rigid Borescope Probe Set
57
Rigid Borescope Probe Specifications
60
Flexible Probe Set
61
Rigid Borescope Probe Set View
62
Equipment Checks
63
The Borescope Resolution Monitor
63
Borescope Resolution Monitor View
64
The Resolution Target
65
Rigid Probes
65
Flexible Probes
65
Resolution Target Groups 0 to 7
66
Core Engine Rotation
67
Cranking Pads View
68
Air Drive Method
69
Pneumatic Rotation Tools
70
ETT Method
71
Electronic Turning Tool View
72
Inspection of Fan and Booster
74
Fan & Booster
75
N1 Rotor Indexing
75
Fan and Booster - Possible Defects
77
Fan Blade - Inspection Areas and Defects
78
Ogvs - Inspection Areas and Defects
80
Inspection of Booster Rotor Stage 2
82
Inspection of Booster Rotor Stages 3 and 4
84
Inspection of Booster Rotor Stage 5 (-5B and -5C Only)
86
Booster Blade Inspection Areas
87
Booster Blade Possible Defects
90
Inspection of High Pressure Compressor
92
High Pressure Compressor (HPC)
93
Alignment Rod
93
General Inspection Method
93
HPC Inspection
94
N2 Rotor Indexing
95
High Pressure Compressor (HPC) Inspection Areas
97
Rotor Blades Specific Inspection Areas
99
HPC Blade Inspection Areas
100
HPC Blades - Possible Defects
101
Inspection of Combustor Section
104
Combustion Section
105
Single Annular Combustor (SAC) Inspections
105
Combustion Chamber (SAC) Inspection
106
Inspection of SAC Outer Liner
107
Inspection of SAC Inner Liner
107
Combustion Chamber (SAC) - Inspection of Inner and Outer Liners
108
Possible Defects on SAC Liners
109
Possible Defects on SAC Chamber Liners
110
Inspection of the SAC Dome Area
111
Possible Defects in the SAC Dome Area
113
Possible Defects in SAC Chamber Dome Area
114
Inspection of SAC Chamber after Birdstrike/Fod
115
Double Annular Combustor (DAC) Inspections
117
Combustion Chamber (DAC) Inspection
118
Inspection of DAC Outer Liner
119
Inspection of DAC Inner Liner
119
Inspection of DAC Dome Area
121
Combustion Chamber (DAC) - Inspection of Dome Area
122
Possible Defects in the DAC Dome Area
123
Possible Defects on the DAC Outer and Inner Liners
123
Inspection of DAC Chamber after Birdstrike/Fod
125
Inspection of High Pressure Turbine
128
High Pressure Turbine (HPT) - Inspection with Rigid Probe
129
HPT Nozzle Inspection with Rigid Probe
130
High Pressure Turbine (HPT) - Inspection with Flexible Probe
131
HPT Nozzle Inspection with Flexible Probe
132
HPT Nozzle Inspection Areas
133
HPT Nozzle Guide Vane Inspection Areas View
134
HPT Nozzle Possible Defects
135
HPT - Inspection with a Rigid Probe
137
HPT Rotor Blade and Shroud - Inspection with a Rigid Probe
138
HPT Rotor Blade and Shroud - Inspection with a Flexible Probe
139
Rotor Inspection Areas
141
Specific Rotor Blades Inspection Areas
143
HPT Rotor Blades Possible Defects
145
Inspection of Low Pressure Turbine
148
Low Pressure Turbine (LPT)
149
Low Pressure Turbine Inspection
150
Low Pressure Turbine Inspection Areas
151
LPT Blade Inspection Areas
152
LPT Blade Possible Defects
153
Possible Defects on Last Stage Blades
155
Possible Defects on Last Stage Blade Tip Shrouds
156
Appendix : Number of Blades Per Rotor
158
Blade Quantities
159
Service Bulletins
162
Reference Illustrations
167
Ctc-229
167
4
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CFM CFM56 Series Specifications
General
Brand
CFM
Model
CFM56 Series
Category
Engine
Language
English
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