CHAPTER 72 - ENGINE
 TABLE OF CONTENTS
_________________
 Chapter Section Subject_______ Subject ____ Effectivity
_______ Page ___________
 ENGINE 72-00-00
______
 Description and Operation 1 ALL
 General 1
 Components - Engine External 1
 Drives - Accessory 26
 Engine Stations - Designation of 1
 Flange Identification - Engine 1
 Locations - Main Bearing 31

 Numbering/Compartment
 Modules - Engine 1
 Pressurization - Bearing 38

 Compartment Seal
 Section - Combustion 18
 Section - Compressor 1
 Section - Turbine 18
 Supports - Bearing 38

 Component Location 101 ALL
 Component Index
 Component Location

 Maintenance Practices 201 ALL
 General 201
 N2 Rotor - Manual Turn 201
 Replacement of Damaged Conical 213

 Seat Connectors
 72-CONTENTS
 NGUN Page 1 Feb 18/02
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / PW4000 SERIES /747-400 / ENGINES/MAINTENANCE MANUAL ////////////////////////
CHAPTER 72 - ENGINE
 TABLE OF CONTENTS
_________________
 Chapter Section
 Subject_______  Subject ____ Effectivity_______ Page ___________
 Inspection/Check 601 ALL
 Birdstrike (Foreign Object 616

 Damage) Inspection
 Combustion Chamber Inspection 682C
 Engine Overspeed Inspection 627
 Engine Overtemperature 619

 Inspection
 Engine Windmilling 632
 Inspection/Check
 Fire/Fire Extinguishing Agent 665
 Inspection/Check
 Front Fan Case Rubstrip 666
 Inspection
 HPC Vane and Blade (5th- through 680D
 15th-Stage) Inspection
 HPT (1st- and 2nd-Stage) Blade 682Z
 and (1st-Stage) Vane Inspection
 Inlet, Exhaust, and Externals 602
 Inspection
 LPC 1st-Stage Vane and 1.6-Stage 673
 Blade Inspection
 LPC 4th-Stage Blade and Vane 677
 Inspection
 LPT Blades (3rd-Stage) 686H

 Inspection
 LPT Vanes (3rd-Stage) Inspection 686D
 Oil Overtemperature 636

 Inspection/Check
 Oil System Contamination 651
 Inspection
 Prepare for the Borescope 667
 Inspection
 Put the Airplane Back to Its 686N
 Usual Condition
 Volcanic Ash/Sand Ingestion 661
 Inspection/Check

 72-CONTENTS
 NGUN Page 2 Feb 18/02
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
CHAPTER 72 - ENGINE
 TABLE OF CONTENTS
_________________
 Chapter Section Subject_______ Subject ____ Effectivity
_______ Page ___________
 Cleaning/Painting 701 ALL
 Clean the EPR PT4.95 Probes 718
 Clean Engine Gaspath (With Water 701

 or With Water and Gaspath
 Cleaner)

 Clean Engine Gaspath After Use 717
 of Fire Extinguishing Agents
 (Continue-In-Service)

 Clean Engine Gaspath After Use 718
 of Fire Extinguishing Agents
 (Prior to Engine Removal)

 COMPRESSOR SECTION 72-30-00
__________________
 Description and Operation 1 ALL
 General 1
 Case - Fan 4
 Case - Intermediate 8
 Compressor - High Pressure (HPC) 8
 Compressor - Low Pressure (LPC) 1
 Coupling - LPC/LPT 4

 COMPRESSOR - LOW PRESSURE 72-31-00
 Adjustment/Test 501 ALL General 501 Balance the Front and Rear 502
 Balance Plane (Trim Balance -PBS-4100 Dual Pick-Up
 Procedure)

 Balance the Front Balance Plan 514
 (Trim Balance - Airborne
 Vibration Monitoring (AVM)
 Procedure

 Balance the Front Balance 521
 Plane (Trim Balance -PBS-4100 / AVM Procedure)

 Balance the Front Balance 530
 Plane (Trim Balance -Vibro-meter AVM Procedure P/N
 241-280-051-012).

 72-CONTENTS
 NGUN Page 3 Feb 18/02
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / PW4000 SERIES /747-400 / ENGINES/MAINTENANCE MANUAL ////////////////////////
CHAPTER 72 - ENGINE
 TABLE OF CONTENTS
_________________
 Chapter Section
 Subject_______  Subject ____ Effectivity_______ Page ___________
 BLADE - (FAN), 1ST-STAGE 72-31-02 Removal/Installation 401 ALL Inspection/Check 601 ALL Repairs 801 ALL
　
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