ctc 030 answerbook

TRAINING MANUAL

CFM56-3

COMPONENT IDENTIFICATIONANSWERBOOK

APRIL 2004

CTC-030 Level 3

CFM56-ALL TRAINING MANUAL

GENERAL Page 1Issue 01

EFFECTIVITYALL CFM56 ENGINES

CFMI PROPRIETARY INFORMATION

CFMI Customer Training CenterSnecma Services

Site de Melun-Montereau,Arodrome de Villaroche

Chemin de Viercy, B.P. 1936,77019 - Melun Cedex

FRANCE

CFMI Customer Training ServicesGE Aircraft Engines

Customer Technical Education Center123 Merchant Street

Mail Drop Y2Cincinnati, Ohio 45246

USA

Published by CFMI

THIS PAGE INTENTIONALLY LEFT BLANK









This CFMI publication is for Training Purposes Only. The information is accurate at the time of compilation; however, no update service will be furnished to maintain accuracy. For authorized maintenance practices and specifications, consult pertinent maintenance publications.

The information (including technical data) contained in this document is the property of CFM International (GE and SNECMA). It is disclosed in confidence, and the technical data therein is exported under a U.S. Government license. Therefore, None of the information may be disclosed to other than the recipient.

In addition, the technical data therein and the direct product of those data, may not be diverted, transferred, re-exported or disclosed in any manner not provided for by the license without prior written approval of both the U.S. Government and CFM International.

COPYRIGHT 1998 CFM INTERNATIONAL




USERS GUIDECOMPONENT IDENTIFICATION

Page 5Issue 01

USERS GUIDE





Page 6Issue 01

VIEWING POINT KEY :





Page 7Issue 01

MATCH THE NAME OF THE COMPONENT TO THE CORRECT ANSWER.

Enter the item number in the left hand column that corresponds with the identification of the line, accessory or component shown in the picture. Then enter the item number in the right hand column that corresponds with the purpose for the line, accessory, or component shown in the picture.

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Page 8Issue 01

EFFECTIVITYCFM56-3, -3B, -3C ENGINES FOR BOEING 737-300/400/500


CFM56-3 TRAINING MANUAL

IDENTIFICATIONEXERCISE

COMPONENT IDENTIFICATION

Page 9Apr 04

IDENTIFICATION EXERCISE




Page 10Apr 04

CTC-030-001-00






Page 11Apr 04



ITEM NO. IDENTIFICATION

ITEM NO. PURPOSE

8 Spinner Rear Cone 7 Elliptical shape that prevents ice formation10 Abradable Liner 6 Balance the low pressure system

9 Ps12 Sensing Port (4) 3 Supplies engine serial number, thrust rating and takeoff rating3 Engine Data Plate 1 Supplies high voltage power to the igniters6 Balance Screws 4 Provides sound suppression

4 Forward Acoustical Panel 10 Prevents direct contact of fan blade on the case during engine operation 1 Ignition Exciter (2) 2 Electronic over-ride of the MEC2 Power Management Control (PMC) 9 Static air pressure from static port to Ps12 manifold5 T12 Fan Inlet Sensor (stowed) 5 Fan inlet temperature to PMC

7 Spinner Front Cone 8 Axial retention of fan blades and provision for balance screw placement




Page 12Apr 04

CTC-030-002-00






Page 13Apr 04




ITEM NO. PURPOSE

2 Fan Frame 1 Transmits high voltage from the upper exciter to the 8 oclock igniter

1 Left Hand Ignition Lead 3 Supplies cooling air to the right and left ignition lead conduit for lead cooling3 Air Manifold 6 Front section shouldered to give fan blade containment6 Fan Case 2 1 of 2 main engine structural frames5 Right Hand Ignition Lead 4 Used for engine lifting

4 Front Lifting Trunnion 5 Transmits high voltage from the lower exciter to the 4 oclock igniter




Page 14Apr 04

CTC-030-003-00






Page 15Apr 04




ITEM NO. PURPOSE

3 J2 Connector 1 Access PLA gain adjustment5 J5 Connector 2 Input signal from the ight deck2 J4 Connector 5 Monitor connector for test

6 J3 Connector 6 Input signal for N1, T12, and PLA output signal for MEC torque motor1 Cover Plate 3 PMC Input power supplied by the control alternator4 Ps12 Signal Line 4 Air signal from Ps 12 manifold to PMC




Page 16Apr 04

CTC-030-004-00






Page 17Apr 04




ITEM NO. PURPOSE

7 Visual Oil Quantity Window 6 Provides oil overflow containment during servicing4 Oil Tank Anti-Siphon Line 4 Prevents oil tank siphoning after engine shutdown6 Oil Scupper 1 To support the engine on the ground

1 Fan Frame Ground Handling Mount (Right Hand) 2 To balance internal sump pressures

5 Gravity Fill Oil Cap 7 Supplies visual inspection of oil tank service limits2 Oil Tank Vent Line 5 Seals oil tank and allows for servicing and oil sampling3 Oil Tank Quantity Transmitter 3 Transmits oil tank quantity to flight deck




Page 18Apr 04

CTC-030-005-00






Page 19Apr 04




ITEM NO. PURPOSE

3 Oil Tank Pressure Fill and Overflow Ports 1 Supplies N1 speed signal to PMC and flight deck

2 Oil Scavenge Return Line 4 Supplies oil from oil tank to lube unit pressure pump5 Oil Tank 5 Storage of engine lubrication oil4 Lube Unit Supply Line 2 Supplies scavenge oil return from servo heater to oil tank1 N1 Speed Sensor 3 Supplies remote pressure servicing of the oil tank




Page 20Apr 04

CTC-030-006-00






Page 21Apr 04




ITEM NO. PURPOSE

4 Aft Acoustical Panel 5 Cooling of CSD/IDG oil2 Mid Acoustical Panel 2 Provides sound suppression5 CSD/IDG Oil Cooler Pad 3 Air directed to the aircraft generator for cooling3 Generator Cooling Inlet 4 Provides sound suppression1 Outlet Guide Vanes (80) 1 Direct fan discharge air flow in a straight path




Page 22Apr 04

CTC-030-007-00






Page 23Apr 04




ITEM NO. PURPOSE

6 Alternate Vibration Sensor Pad 7 Supplies HPC bleed air to the HPT shroud to increase engine efficiency 8 T2.5 (CIT) Sensor (Inside Frame) 8 Supplies compressor inlet temperature to MEC

5 Air Ignition Tube 2 Supplies static rigging of variable stator vane actuator to the system

7 High Pressure Turbine Clearance Control Valve (HPTCCV) 1Ignites fuel/air mixture and serves as port S10 to inspect HPC

2 VSV Actuator Rig Pin Hole (Right Side) 4 Connects No. 1 bearing vibration sensor with aircraft

4 Electrical Connector 3 To connect each VSV actuation ring

1 Igniter - Lower Right Hand Side Combustor Case 6 Alternate No. 1 bearing vibration sensor mounting pad

3 VSV Actuation Connecting Links 5 Supplies cooling air from the booster to the air manifold




Page 24Apr 04

CTC-030-008-00






Page 25Apr 04




ITEM NO. PURPOSE

2 Borescope Port S7 3 To inspect HPC stage 8 trailing edge and stage 9 leading edge



8 Borescope Port S3 6 To inspect HPC stage 1 trailing edge and stage 2 leading edge7 Borescope Port S1 7 To inspect HPC IGV and stage 1 leading edge








Page 26Apr 04

CTC-030-009-00






Page 27Apr 04




ITEM NO. PURPOSE

2 IGV Actuation Half Ring 5 Stage 2 VSV scheduling1 Stage 3 Actuation Half Ring 4 Connects turbine frame bearing vibration sensor to aircraft 5 Stage 2 Actuation Half Ring 2 IGV angle scheduling3 Stage 1 Actuation Half Ring 1 Stage 3 VSV scheduling

4 Electric Connector, Bearing Vibration Sensor 3 Stage 1 VSV scheduling




Page 28Apr 04

CTC-030-010-00






Page 29Apr 04




ITEM NO. PURPOSE

1 Fuel Nozzle (20) 1 Supplies fuel to the combustion chamber2 Shrouded Fuel Manifold 4 Supplies stage 9 bleed air to the HPTCCV4 HPC Stage 9 Bleed Tap 2 Supplies fuel to the fuel nozzles5 Bleed Bias Sensor (CBP) 5 Senses use of customer bleed air

3 HPTCCV Discharge Manifold 3 Supplies stage 5, stage 9, or mixed bleed air to HPT shroud




Page 30Apr 04

CTC-030-011-00






Page 31Apr 04




ITEM NO. PURPOSE

3 Turbine Frame 5 Supplies fan discharge air to LPT Case for cooling7 Distribution Box 2 Prevents flame propagation in the center vent tube5 LPT Case Cooling Manifold 1 Supports the engine on the ground1 Turbine Frame Ground Handling Mount 7 Supplies fan discharge air to LPT case cooling manifold2 Flame Arrestor 4 Connects EGT system to flight deck indicator4 T4.95 (EGT) Junction Connector 3 Second structural frame of engine6 T4.95 (EGT) Thermocouple Probes (9) 6 Sense exhaust gas temperature




Page 32Apr 04

CTC-030-012-00






Page 33Apr 04




ITEM NO. PURPOSE

1 Borescope Port S22 2 Scavenge return of oil from aft sump to lube unit

2 Aft Sump Oil Scavenge Line 4 To inspect LPTR stage 3 leading edge and stage 2 trailing edge 5 Borescope Port S17 3 Supplies oil to aft sump from lube unit

3 Aft Sump Supply Line 5 To inspect HPTR trailing edge and LPTR stage 1 leading edge

4 Borescope Port S21 1 To inspect LPTR stage 4 leading edge and stage 3 trailing edge




Page 34Apr 04

CTC-030-013-00






Page 35Apr 04




ITEM NO. PURPOSE

4 Low Pressure Turbine Stator Case 3 Supplies stage 5, stage 9, and mixed bleed air to the HPT shroud2 HPC Stage 9 Bleed Port (4) 8 Supports the HPT shrouds in the HPTR area9 HPC Stage 5 Bleed Manifold (4) 2 Stage 9 customer bleed air8 HPT Shroud Support 1 Supplies fuel to left hand side nozzles1 Fuel Manifold (Left Hand Side) 5 Connects EGT system to flight deck indicator

5 T4.95 (EGT) Junction Connector 7 Transmits vibration signal from the turbine frame sensor to connector7 Turbine Frame Vibration Sensor Cable 4 Enclose the four LPT stages3 HPTCCV Discharge Manifold 9 Supplies stage 5 bleed air for stage 1 LPT nozzle cooling

6 Borescope Port S18 6 To inspect HPTR trailing edge and LPTR stage 1 leading edge




Page 36Apr 04

CTC-030-014-00






Page 37Apr 04




ITEM NO. PURPOSE

3 Left Hand Ignition Lead 5 Stage 5 customer bleed air1 HPC Stage 5 Start Bleed Valve 8 Supplies fuel to the combustion chamber

6 Igniter - Lower Left Hand Side 3 Transmits high voltage from the upper exciter to the 8:00 igniter

8 Fuel Nozzle (20) 2 Supplies start air pressure to the HPC stage 5 start bleed valve4 CDP (PS3) Tap and Signal Line 6 Ignites the fuel/air mixture and serves as BSI Port S115 HPC Stage Bleed Port (3) 1 Aerodynamically unloads the HPC during start

7 Combustion Case 4 Transmits the compressor discharge pressure signal to the MEC2 Air Signal Start Bleed Tube 7 Contains the combustion chamber




Page 38Apr 04

CTC-030-015-00






Page 39Apr 04




ITEM NO. PURPOSE

1 Master VBV Ball Screw Actuator (1) 1 Changes the VBV fuel gear motion into VBV linear rotational motion

3 Fan Duct Panel 2 Supplies by-pass of primary airflow into the secondary airflow

2 Variable Bleed Valve (12) 3 Points airflow from the booster through the open VBV doors to the fan by-pass air6 VBV Stop Mechanism 6 Controls the range of movement of the VBV fuel gear motor

4 Kicker Stop 5 Transmits VBV master ball screw position to feedback cable5 Feedback Rod Clevis 4 Supplies a stop for the free lever




Page 40Apr 04

CTC-030-016-00




ITEM NO. PURPOSE

4 Return Lever 1 Uses fuel pressure to turn the motor drive, which opens or closes the VBVs

2 VBV Feedback Cable Rod End Bearing 3 Supplies a biased feedback signal to the MEC to further open VBV doors

3 Free Lever 6 Transmits rod end fuel pressure from the MEC to the VSV actuator

6 VSV Rod End Pressure Line 5 Transmits head end fuel pressure from the MEC to the VSV actuator

5 VSV Head End Pressure Line 2 Adjusts the length of the VBV feedback cable during the travel check1 VBV Gear Motor 4 Returns the VBV to the normal MEC schedule




Page 42Apr 04

CTC-030-017-00






Page 43Apr 04




ITEM NO. PURPOSE

6 TC2 Signal Line 6 Carries Pb or Pc fuel pressure from the MEC to the HPTCCV 9th stage valve

4 Idle Solenoid 7 Carries Pb or Pc fuel pressure from the MEC to the HPTCCV 5th stage valve3 TC3 Signal Line (-3B2/-3C only) 5 Drains oil from the forward sump seal cavity to overboard

5 Cavity Drain 2 Carries fuel pressure from the MEC to the VSV actuators to open the VSVs

2 VSV Rod End Pressure Line 4 Electrically supplies flight and ground idle (high and low idle) by the aircrafts flight condition

1 VSV Head End Pressure Line 1 Carries fuel pressure from the MEC to the VSV actuators to close the VSVs

7 TC1 Signal Line 3 Signal pressure to the timer solenoid during a takeoff with N2 greater than 95%




Page 44Apr 04

CTC-030-018-00






Page 45Apr 04




ITEM NO. PURPOSE

5 Electrical Connector 5 Transmits PLA from the MEC to the PMC and transmits the TMC from the PMC to the MEC6 VSV Feedback Cable 4 To rig the position of the pointer with the VSV rig notch1 Pb Pressure Line 3 To rig the position of the pointer with the VBV rig notch

7 VBV Feedback Cable 1 Carries Pb (low) pressure from the CIT (T25) sensor to the MEC

4 VSV Feedback Cable Adjustment Screw 2Carries P6 (high) pressure from the MEC to the CIT (T25) sensor

2 P6 Pressure Line 7 Indicates VBV door position to the MEC

3 VBV Feedback Cable Adjustment Screw 6 Indicates VSV position to the MEC




Page 46Apr 04

CTC-030-019-00






Page 47Apr 04




ITEM NO. PURPOSE

10 Oil Scavenge Return Line 12 Transmits flight deck throttle demand to the MEC

4 Oil Scavenge Line 8 Supplies static rigging procedure of the VSV actuator to the system8 VSV Actuator Rig Pin Hole (Left Side) 11 Supplies positive fuel ON/OFF selection9 VSV Actuator (Left Side) 1 Supplies fuel from the servo fuel heater to the MEC

3 VBV Open Port Line 9 Fuel pressure from the MEC to the rod end or the head end, to actuate the VSV system

12 Power Lever 10 Supplies scavenge oil return from the servo heater to the oil tank11 Fuel Shutoff Lever 7 Holds all servo mechanism lines

5 Full Reverse Power Lever Stop 6 Supplies stoppage for the power lever at its 130-degree stop (non-adjustable)

1 Fuel Supply Line 5 Supplies mechanical stoppage for the power lever (non-adjustable)

7 9 oclock Tube Bundle 4 Supplies oil from the scavenge filter to the servo fuel heat exchanger

2 VBV Close Port Line 3 Supplies fuel from the MEC to the VBV motor to open the VBVs

6 Full Forward Power Lever Stop 2 Supplies fuel from the MEC to the VBV motor, to close the VBVs




Page 48Apr 04

CTC-030-020-00






Page 49Apr 04




ITEM NO. PURPOSE

6 LP Fuel Pump Screen Assembly 10 De-ices the servo fuel by convection transfer of heat from the scavenge oil

10 Servo Fuel Heater 8 Transmits power from the IGB to the AGB for the accessories8 Transfer Gearbox (TGB) 3 Supplies gear drive for the accessories

4 Main Fuel/Oil Heat Exchanger 6 Gives access to the LP stage impeller for verification of rotation

9 Fuel Supply Heater Tube 1 Supplies vent air from AGB to the forward sump, & protects horizontal drive shaft5 Pb Pressure Line (-3B2/-3C only) 9 Transmits fuel from the pump to the servo heater

7 Fuel Pump 7 Two-stage pump that supplies fuel pressure and drive for the MEC

2 Fuel Supply Line 5 Pb supply to the timer and timer solenoid valve from the fuel pump1 Horizontal Drive Shaft Housing 2 Transmits fuel from the MEC to the fuel flow meter

3 Accessory Gearbox (AGB) 4 Cools the engine oil through convection transfer of heat from the oil to the fuel

11 Main Engine Control (MEC) 11 Supplies schedule fuel for combustion and servo operation




Page 50Apr 04

CTC-030-021-00






Page 51Apr 04




ITEM NO. PURPOSE

6 Forward Sump MCD 8 Collects and filters metallic and non-metallic particles from the AGB/TGB sumps

2 Lube Supply Filter 5 Supplies one supply pump and three scavenge pumps for oil circulation

3 PS12 Signal Line 4 Supplies scavenge oil from the lube unit to the scavenge filter element

4 Oil Scavenge Line 7 Collects and filters metallic and non-metallic particles from the aft sump

5 Lubrication Unit 3 Supplies static air pressure from the PS12 manifold to the MEC

8 AGB/TGB Sump MCD 1 Filters the fuel before the fuel flows to the high pressure stage of the fuel pump7 Aft Sump MCD 2 Filters the supply oil before the oil flows to the sumps

1 Fuel Filter 6 Collects and filters metallic and non-metallic particles from the forward sump




Page 52Apr 04

CTC-030-022-00






Page 53Apr 04




ITEM NO. PURPOSE

5 AGB Drain Port 4 Supplies oil from the lube unit to the AGB

2 Lube Scavenge Filter 2 Filters the scavenge oil before the oil flows to the servo heater1 AGB Alignment Turnbuckle 5 Supplies drainage of the AGB sump

7 MCD Retention Bar 7 Supplies a positive lock of the MCD, and prevents partial disengagement4 Oil Supply Line 6 Connects the TGB to the AGB to supply oil scavenging3 Visual Clogging Indicator 1 Aligns the AGB for horizontal drive shaft installation6 Oil Scavenge Line 3 Supplies a visual indication of the lube supply filter clogging




Page 54Apr 04

CTC-030-023-00






Page 55Apr 04




ITEM NO. PURPOSE

7 TS5 Pressure Line (-3B2/-3C only) 3 Changes the operation of the HPTCCV during takeoff1 P7 Pressure Line 2 Transmits Pb (low) pressure from the T2 sensor to the MEC

3 HPTCCV Timer (-3B2/-3C only) 7 Supplies output of Pc or Pb from the TCC timer to the TCC valve to control stage 5 bleed*

4 HPTCCV Timer Lockout Solenoid (-3C only) 6Supplies output of Pc or Pb from the TCC timer to the TCC valve to control stage 9 bleed**

2 Pb Pressure Line 5 Controls the operation of the stage 5 valve of the TCCV (timer disarmed)

5 TC1 Pressure Line (-3B2/-3C only) 4 Weight-on-wheels sensing relay, airborne condition prevents TC3 fuel flow to TCCV timer

6 TS9 Pressure Line (-3B2/-3C only) 1 Transmits P7 (high) pressure from the MEC to the T2 sensor

*NOTE: Timer disarmed TS5 ports TC1 fuel pressure. **NOTE: Timer disarmed TS9 ports TC2 fuel pressure.




Page 56Apr 04

CTC-030-024-00






Page 57Apr 04




ITEM NO. PURPOSE

1 Bellows/Valve Housing (T2) 6 Holds the timer latching valve in the latched position *

7 Pb Pressure Line (-3b2/-3C only) 3 Controls the operation of the stage 9 valve of the TCCV (timer disarmed)

4 HPTCCV Timer Adjustment Screw (-3B2/-3C only) 7 Supplies low pressure for timer operation

6 Pc Pressure Line (-3B2/-3C only) 1 Changes the fuel pressure to the MEC with changes in inlet temperature

3 TC2 Pressure Line (-3B2/-3C only) 5 The timer starts its sequence when pressure indicates to lock-out solenoid that N2 is 95%2 T2 Sensor (Stowed) 4 Supplies the adjustment for the timer operation speed5 TC3 Pressure Line (-3B2/-3C only) 2 Supplies the fan inlet temperature to the MEC

*NOTE: This lets the timer open one time each engine cycle




Page 58Apr 04

CTC-030-025-00






Page 59Apr 04




ITEM NO. PURPOSE

4 Hand Cranking Pad 2 Drains to overboard2 Hydraulic Pump Pad Drain 1 Supports the hydraulic pump1 Hydraulic Pump Pad 6 Drains to overboard6 Starter and Hand Cranking Pad Drain 8 Drains to overboard

9 CSD/IDG Cavity Reservoir Standpipe Drain 5 Supports the air starter

5 Pneumatic Starter Pad 4 Lets the operator rotate the core during maintenance

7 CSD/IDG Pad 3 Transmits power to the PMC and flight deck N2 speed indication8 CSD/IDG Pad Drain 7 Supports the CSD/IDG

3 Control Alternator 9 Makes sure oil level of the CSD/IDG is normal during servicing




Page 60Apr 04

CTC-030-026-00






Page 61Apr 04




ITEM NO. PURPOSE

2 Core Major Module 1 Contains the LPT rotor, LPT stator, LPT shaft, and the LPT frame

3 Fan Major Module 3 Contains fan/booster, No. 1 and 2 bearing support, IGB, No. 3 bearing, fan frame, TGB and AGB

1 Low Pressure Turbine (LPT) Major Module 2 Contains HPC rotor & stators, combustor case & liner, HPT nozzle & rotor, and LPT nozzle





Page 62Apr 04



INDEX

EFFECTIVITYALL CFM56-5A ENGINES FOR A319-A320



INDEXCOMPONENT IDENTIFICATION

Page 63Apr 04





Page 64Apr 04

COMPONENT NAME PAGE COMPONENT NAME PAGE

9 oclock Tube Bundle . . . . . . . . . . . . . . . . . . . . . . . . . 47Abradable Liner . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11Accessory Gearbox (AGB) . . . . . . . . . . . . . . . . . . . . . 49Aft Acoustical Panel. . . . . . . . . . . . . . . . . . . . . . . . . . . 21Aft Sump MCD. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51AGB/TGB Sump MCD. . . . . . . . . . . . . . . . . . . . . . . . . 51AGB Alignment Turnbuckle . . . . . . . . . . . . . . . . . . . . . 53AGB Drain Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53Air Ignition Tube . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23Air Manifold . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13Air Signal Start Bleed Tube . . . . . . . . . . . . . . . . . . . . . 37Alternate Vibration Sensor Pad . . . . . . . . . . . . . . . . . . 23Balance Screws. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11Bellows/Valve Housing (T2) . . . . . . . . . . . . . . . . . . . . 57Bleed Bias Sensor (CBP) . . . . . . . . . . . . . . . . . . . . . . 29Borescope Port S1 . . . . . . . . . . . . . . . . . . . . . . . . . . . 25Borescope Port S18 . . . . . . . . . . . . . . . . . . . . . . . . . . 35Borescope Port S2 . . . . . . . . . . . . . . . . . . . . . . . . . . . 25Borescope Port S3 . . . . . . . . . . . . . . . . . . . . . . . . . . . 25Borescope Port S4 . . . . . . . . . . . . . . . . . . . . . . . . . . . 25Borescope Port S5 . . . . . . . . . . . . . . . . . . . . . . . . . . . 25Borescope Port S6 . . . . . . . . . . . . . . . . . . . . . . . . . . . 25Borescope Port S7 . . . . . . . . . . . . . . . . . . . . . . . . . . . 25Borescope Port S8 . . . . . . . . . . . . . . . . . . . . . . . . . . . 25Borescope Port S9 . . . . . . . . . . . . . . . . . . . . . . . . . . . 25Cavity Drain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43CDP (PS3) Tap and Signal Line . . . . . . . . . . . . . . . . . 37

Combustion Case . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37Control Alternator . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59Core Major Module . . . . . . . . . . . . . . . . . . . . . . . . . . . 61Cover Plate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15CSD/IDG Cavity Reservoir Standpipe Drain . . . . . . . . 59CSD/IDG Oil Cooler Pad . . . . . . . . . . . . . . . . . . . . . . . 21CSD/IDG Pad . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59CSD/IDG Pad Drain. . . . . . . . . . . . . . . . . . . . . . . . . . . 59Distribution Box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31Electrical Connector . . . . . . . . . . . . . . . . . . . . . . . . . . 23Electrical Connector . . . . . . . . . . . . . . . . . . . . . . . . . . 45Electric Connector, Bearing Vibration Sensor . . . . . . . 27Engine Data Plate . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11Fan Case. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13Fan Duct Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39Fan Frame. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13Fan Frame Ground Handling Mount (Right Hand) . . . 17Fan Major Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61Feedback Rod Clevis . . . . . . . . . . . . . . . . . . . . . . . . . 39Flame Arrestor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31Forward Acoustical Panel . . . . . . . . . . . . . . . . . . . . . . 11Forward Sump MCD . . . . . . . . . . . . . . . . . . . . . . . . . . 51Free Lever . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41Front Lifting Trunnion . . . . . . . . . . . . . . . . . . . . . . . . . 13Fuel Filter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51Fuel Manifold (Left Hand Side) . . . . . . . . . . . . . . . . . . 35Fuel Nozzle (20) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29





Page 65Apr 04


Fuel Nozzle (20) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37Fuel Pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49Fuel Shutoff Lever . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47Fuel Supply Heater Tube. . . . . . . . . . . . . . . . . . . . . . . 49Fuel Supply Line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47Fuel Supply Line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49Full Forward Power Lever Stop. . . . . . . . . . . . . . . . . . 47Full Reverse Power Lever Stop. . . . . . . . . . . . . . . . . . 47Generator Cooling Inlet . . . . . . . . . . . . . . . . . . . . . . . . 21Gravity Fill Oil Cap. . . . . . . . . . . . . . . . . . . . . . . . . . . . 17Hand Cranking Pad . . . . . . . . . . . . . . . . . . . . . . . . . . . 59High Pressure Turbine Clearance Control Valve (HPTCCV) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23Horizontal Drive Shaft Housing . . . . . . . . . . . . . . . . . . 49HPC Stage 5 Bleed Manifold (4) . . . . . . . . . . . . . . . . . 35HPC Stage 5 Start Bleed Valve. . . . . . . . . . . . . . . . . . 37HPC Stage 9 Bleed Port (4) . . . . . . . . . . . . . . . . . . . . 35HPC Stage 9 Bleed Tap . . . . . . . . . . . . . . . . . . . . . . . 29HPC Stage Bleed Port (3) . . . . . . . . . . . . . . . . . . . . . . 37HPTCCV Discharge Manifold . . . . . . . . . . . . . . . . . . . 29HPTCCV Discharge Manifold . . . . . . . . . . . . . . . . . . . 35HPTCCV Timer (-3B2/-3C only) . . . . . . . . . . . . . . . . . 55HPTCCV Timer Adjustment Screw . . . . . . . . . . . . . . . 57HPTCCV Timer Lockout Solenoid (-3C only) . . . . . . . 55HPT Shroud Support . . . . . . . . . . . . . . . . . . . . . . . . . . 35Hydraulic Pump Pad . . . . . . . . . . . . . . . . . . . . . . . . . . 59Hydraulic Pump Pad Drain . . . . . . . . . . . . . . . . . . . . . 59

Idle Solenoid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43Igniter - Lower Left Hand Side. . . . . . . . . . . . . . . . . . . 37Igniter - Lower Right Hand Side Combustor Case . . . 23Ignition Exciter (2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11IGV Actuation Half Ring. . . . . . . . . . . . . . . . . . . . . . . . 27J2 Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15J3 Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15J4 Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15J5 Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15Kicker Stop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39Left Hand Ignition Lead . . . . . . . . . . . . . . . . . . . . . . . . 13Left Hand Ignition Lead . . . . . . . . . . . . . . . . . . . . . . . . 37Low Pressure Turbine (LPT) Major Module. . . . . . . . . 61Low Pressure Turbine Stator Case . . . . . . . . . . . . . . . 35LPT Case Cooling Manifold. . . . . . . . . . . . . . . . . . . . . 31LP Fuel Pump Screen Assembly. . . . . . . . . . . . . . . . . 49Lube Scavenge Filter. . . . . . . . . . . . . . . . . . . . . . . . . . 53Lube Supply Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51Lube Unit Supply Line . . . . . . . . . . . . . . . . . . . . . . . . . 19Lubrication Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51Main Engine Control (MEC) . . . . . . . . . . . . . . . . . . . . 49Main Fuel/Oil Heat Exchanger. . . . . . . . . . . . . . . . . . . 49Master VBV Ball Screw Actuator (1) . . . . . . . . . . . . . . 39MCD Retention Bar . . . . . . . . . . . . . . . . . . . . . . . . . . . 53Mid Acoustical Panel . . . . . . . . . . . . . . . . . . . . . . . . . . 21N1 Speed Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19Oil Scavenge Line . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47





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Oil Scavenge Line . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51Oil Scavenge Line . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53Oil Scavenge Return Line . . . . . . . . . . . . . . . . . . . . . . 19Oil Scavenge Return Line . . . . . . . . . . . . . . . . . . . . . . 47Oil Scupper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17Oil Supply Line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53Oil Tank . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19Oil Tank Anti-Siphon Line . . . . . . . . . . . . . . . . . . . . . . 17Oil Tank Pressure Fill and Overflow Ports. . . . . . . . . . 19Oil Tank Quantity Transmitter . . . . . . . . . . . . . . . . . . . 17Oil Tank Vent Line. . . . . . . . . . . . . . . . . . . . . . . . . . . . 17Outlet Guide Vanes (80) . . . . . . . . . . . . . . . . . . . . . . . 21P6 Pressure Line. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45P7 Pressure Line. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55Pb Pressure Line. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45Pb Pressure Line. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55Pb Pressure Line (-3B2/-3C only) . . . . . . . . . . . . . . . . 49Pb Pressure Line (-3b2/-3C only) . . . . . . . . . . . . . . . . 57Pc Pressure Line (-3B2/-3C only) . . . . . . . . . . . . . . . . 57Pneumatic Starter Pad . . . . . . . . . . . . . . . . . . . . . . . . 59Power Lever . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47Power Management Control (PMC) . . . . . . . . . . . . . . 11Ps12 Sensing Port (4) . . . . . . . . . . . . . . . . . . . . . . . . . 11PS12 Signal Line. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51Ps12 Signal Line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15Return Lever . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41Right Hand Ignition Lead. . . . . . . . . . . . . . . . . . . . . . . 13

Servo Fuel Heater . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49Shrouded Fuel Manifold . . . . . . . . . . . . . . . . . . . . . . . 29Spinner Front Cone . . . . . . . . . . . . . . . . . . . . . . . . . . . 11Spinner Rear Cone . . . . . . . . . . . . . . . . . . . . . . . . . . . 11Stage 1 Actuation Half Ring . . . . . . . . . . . . . . . . . . . . 27Stage 2 Actuation Half Ring . . . . . . . . . . . . . . . . . . . . 27Stage 3 Actuation Half Ring . . . . . . . . . . . . . . . . . . . . 27Starter and Hand Cranking Pad Drain. . . . . . . . . . . . . 59T12 Fan Inlet Sensor (stowed) . . . . . . . . . . . . . . . . . . 11T2.5 (CIT) Sensor (Inside Frame) . . . . . . . . . . . . . . . . 23T2 Sensor (Stowed). . . . . . . . . . . . . . . . . . . . . . . . . . . 57T4.95 (EGT) Junction Connector. . . . . . . . . . . . . . . . . 31T4.95 (EGT) Junction Connector. . . . . . . . . . . . . . . . . 35T4.95 (EGT) Thermocouple Probes (9). . . . . . . . . . . . 31TC1 Pressure Line (-3B2/-3C only) . . . . . . . . . . . . . . . 55TC1 Signal Line. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43TC2 Pressure Line (-3B2/-3C only) . . . . . . . . . . . . . . . 57TC2 Signal Line. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43TC3 Pressure Line (-3B2/-3C only) . . . . . . . . . . . . . . . 57TC3 Signal Line (-3B2/-3C only) . . . . . . . . . . . . . . . . . 43Transfer Gearbox (TGB) . . . . . . . . . . . . . . . . . . . . . . . 49TS5 Pressure Line (-3B2/-3C only) . . . . . . . . . . . . . . . 55TS9 Pressure Line (-3B2/-3C only) . . . . . . . . . . . . . . 55Turbine Frame. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31Turbine Frame Ground Handling Mount . . . . . . . . . . . 31Turbine Frame Vibration Sensor Cable . . . . . . . . . . . . 35Variable Bleed Valve (12) . . . . . . . . . . . . . . . . . . . . . . 39





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VBV Close Port Line . . . . . . . . . . . . . . . . . . . . . . . . . . 47VBV Feedback Cable . . . . . . . . . . . . . . . . . . . . . . . . . 45VBV Feedback Cable Adjustment Screw . . . . . . . . . . 45VBV Feedback Cable Rod End Bearing . . . . . . . . . . . 41VBV Gear Motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41VBV Open Port Line . . . . . . . . . . . . . . . . . . . . . . . . . . 47VBV Stop Mechanism . . . . . . . . . . . . . . . . . . . . . . . . . 39Visual Clogging Indicator. . . . . . . . . . . . . . . . . . . . . . . 53Visual Oil Quantity Window . . . . . . . . . . . . . . . . . . . . . 17VSV Actuation Connecting Links. . . . . . . . . . . . . . . . . 23VSV Actuator (Left Side) . . . . . . . . . . . . . . . . . . . . . . . 47VSV Actuator Rig Pin Hole (Left Side) . . . . . . . . . . . . 47VSV Actuator Rig Pin Hole (Right Side) . . . . . . . . . . . 23VSV Feedback Cable . . . . . . . . . . . . . . . . . . . . . . . . . 45VSV Feedback Cable Adjustment Screw . . . . . . . . . . 45VSV Head End Pressure Line . . . . . . . . . . . . . . . . . . . 41VSV Head End Pressure Line . . . . . . . . . . . . . . . . . . . 43VSV Rod End Pressure Line . . . . . . . . . . . . . . . . . . . . 41VSV Rod End Pressure Line . . . . . . . . . . . . . . . . . . . . 43






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ctc 030 answerbook

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