3043515 R51

LIST OF CHAPTER/SECTION/SUBJECTS
PW100 SERIES Cleaning, Inspection, Repair Manual (Part No. 3043515)
Revision No. 51, Dated Apr 13/2026
Front Matter
Introduction
Alpha/Numeric Index
How to Use
72-00-00	Engine General
72-09-10	Common Parts - Hardware
72-09-20	Common Parts - External Tubes
72-09-30	Common Parts - Bearings
72-11-10	Propeller Shaft
72-11-11	Propeller-shaft Oil-seal Runner
72-11-12	Propeller Thrust-bearing Cover
72-11-15	Second-stage-reduction Spur Gearshaft (Bull Gear, 137T)
72-11-17	Propeller Control Coupling
72-11-18	Second-stage-reduction Spur Gearshaft (Pinion Gear, 36T)
72-11-21	Second-stage-reduction Output Shaft
72-11-22	Second-stage-reduction Coupling Shaft
72-11-23	Propeller-shaft Flexible Coupling
72-11-30	Reduction-gearbox Input Shaft
72-11-32	Input-shaft Adjusting Spacers
72-11-33	Input-shaft Drive Coupling
72-11-39	Torque Shaft Assembly
72-11-40	First-stage-reduction Helical Gear
72-11-44	Layshaft Retainer
72-11-45	Flexible Layshaft Coupling
72-11-46	Flat Washer
72-11-47	Vernier Coupling
72-11-48	Propeller Brake Coupling
72-11-50	Alternator-drive Spur Gearshaft
72-11-51	Idler-drive Spur Gearshaft
72-11-52	Hydraulic-pump Spur Gearshaft
72-11-53	Overspeed-governor-drive Spur Gearshaft
72-11-76	IDG Adapter
72-11-77	PCU Adapter
72-11-78	Propeller Thrust-bearing Sleeve
72-11-79	Close-tolerance Bolts
72-11-80	Reduction-gearbox Housing Set
72-11-81	Reduction-gearbox Front Housing
72-11-82	Reduction-gearbox Rear Housing
72-11-83	Reduction-gearbox Input-drive Housing
72-11-84	Accessory-drive Cover Assembly
72-11-87	Face Seal
72-11-88	Lip-seal Retainer Housing
72-11-89	Chip Detector Adapter
72-11-90	Seal Retaining Plates (Top and Bottom)
72-11-91	Blanking Covers
72-11-92	Oil Nozzles, Jets and Nozzle Assemblies
72-11-93	Layshaft Cover (Front)
72-11-94	Layshaft Cover (Rear)
72-11-95	Oil Seal Carrier
72-11-96	Transfer Tubes
72-11-97	Hydraulic Seal Plug
72-11-98	Bearing Retaining Nuts
72-11-99	Miscellaneous Plugs, Stop, Strainers and Screens
72-21-08	Torque Sensor Spacer
72-21-10	Coupling Shaft Assembly
72-21-11	Torque Shaft Assembly
72-21-12	Coupling-shaft Reference Tube
72-21-13	Plain Plug
72-21-14	Pin Retainer
72-21-15	Straight Pin
72-21-16	Machined Bolt
72-21-20	Front-inlet-case Assembly
72-21-21	Characterization Plug
72-21-25	Exciter Mounting-plate Assembly
72-21-94	Covers
72-21-98	Front-inlet-case Cover
72-21-99	Transfer Tube Assembly
72-22-11	Scavenge Pump Housing
72-22-12	Scavenge Pump Nozzle
72-22-13	Scavenge Pump Venturi
72-22-15	Oil-pump-drive Shaft
72-22-16	Oil-pump-drive Bevel Gear
72-22-17	Accessory-gearbox Drive Shaft
72-22-18	Accessory-drive Spur Gear
72-22-19	Accessory-drive Bevel Gear
72-22-21	Centrifugal Breather-impeller Assembly
72-22-22	Accessory-drive Spur Gearshaft
72-22-23	Accessory-drive-shaft Oil-seal Runner
72-22-27	Starter-generator-drive Spur Gearshaft
72-22-28	Accessory-gearbox-cover Oil Restrictor
72-22-29	Oil Level Indicator
72-22-30	Oil Indicator Adapter
72-22-31	Oil-pressure Booster Impeller
72-22-32	Rear-seal Housing Assembly
72-22-34	Coupling Shaft
72-22-36	Carbon-face Seal
72-22-37	Woodruff Key
72-22-40	Main-pressure-pump Drive Shaft
72-22-41	Pressure-pump Idler-drive Shaft
72-22-42	Main-pressure-pump Housing Assembly
72-22-43	Pressure-pump Cover Assembly
72-22-44	No.6 and 7-bearing Scavenge-pump Housing Assembly
72-22-45	Oil-pump Spur Gears (Seven Teeth)
72-22-46	RGB Scavenge-pump-drive Shaft
72-22-47	RGB Scavenge-pump Idler Shaft
72-22-48	RGB Scavenge-pump Cover Plate
72-22-49	RGB Scavenge-pump-housing Assembly
72-22-51	RGB Oil-filter Housing
72-22-52	Scavenge Oil-filter-bypass Valve
72-22-53	AC-generator Scavenge-pump Housing
72-22-54	Machine Plug (Bypass Valve)
72-22-55	Scavenge Oil-filter Cover
72-22-57	Filter-bypass and Pressure-relief-valve Housing
72-22-58	Main-oil-filter Bypass-valve
72-22-59	Main-oil-filter Bypass-valve Sleeve
72-22-60	Auxiliary Oil-tank-pump Housing
72-22-61	Main-oil-filter Bypass-valve-cover Assembly
72-22-63	Regulating-valve Housing Assembly
72-22-64	Regulating Valve
72-22-65	Regulating Valve Sleeve
72-22-66	Regulating-valve Spring Sleeve
72-22-69	Oil Pressure Housing
72-22-70	Oil Pressure Piston
72-22-71	Oil Pressure Sleeve
72-22-72	Oil Filler Neck
72-22-73	Oil-tank Filler Cap
72-22-74	AGB-Oil-tank-tube Assembly
72-22-75	Oil-pump Pressure-relief-housing Assembly
72-22-76	Pressure Relief Valve
72-22-77	Pressure-relief Valve Sleeve
72-22-80	Rear Inlet Case
72-22-81	Accessory-gearbox Cover Assembly
72-22-82	Check Valve Retainer
72-22-83	Check Valve Piston
72-22-84	Check Valve Housing
72-22-85	No.2 Bearing Housing
72-22-86	No.2 Bearing Retainer
72-22-87	Miscellaneous - Strainer Elements
72-22-88	Coupling Shaft Stop
72-22-90	Insulation Blanket Segments
72-22-91	Fuel-pump to Rear-inlet-case Adapter
72-22-92	Miscellaneous - Compression Springs
72-22-93	Miscellaneous - Covers, Plugs and Adapters
72-22-94	Miscellaneous - Seal Carriers
72-22-95	Miscellaneous - Retaining Nuts
72-22-96	Miscellaneous - Adjusting Spacers
72-22-97	Starter-generator Drive Cover
72-22-98	Miscellaneous - Oil Nozzles and Nozzle Assemblies
72-22-99	Miscellaneous - Transfer Tubes
72-31-11	Accessory Drive Housing
72-31-13	Oil Jet Nozzle
72-31-15	Accessory Drive Cover
72-31-16	Accessory Drive Adapter
72-31-18	Accessory-gearbox Horizontal Bevel-gearshaft
72-31-20	Accessory-drive Lower Bevel-gearshaft
72-31-22	Accessory Gearshaft Collar
72-31-23	Split Ring
72-31-24	Spiral Bevel Gear (deleted)
72-31-27	Pulse Pick-up Runner (No. 3 Bearing Nut)
72-31-29	No. 3-bearing Air Seal
72-31-30	LP Impeller Housing
72-31-32	LP Impeller
72-31-33	Sleeve Bushing
72-31-34	Low-pressure Rotor Shaft
72-31-35	Low-pressure Impeller Nut
72-31-39	Impeller Bevel Gear
72-31-40	No. 4-bearing Housing
72-31-41	No. 4-bearing Flexible Support
72-31-43	HP Impeller
72-31-44	No. 5-bearing Air and Oil Seal
72-31-45	No. 4-bearing Air Seal
72-31-51	P2.5/P3 Air-switching-valve Cover
72-31-52	P2.5/P3 Air-switching-valve Sleeve
72-31-53	Piston Ring
72-31-54	P2.5/P3 Air-switching-valve Piston
72-31-55	Air Pressure Valve
72-31-56	Guide Pin
72-31-57	Valve Seat
72-31-58	Valve Outer-housing Assembly
72-31-59	Valve Inner Housing
72-31-60	Valve Inner Spring
72-31-61	Valve Outer Spring
72-31-79	LP-diffuser Exit Duct
72-31-80	LP Diffuser Case
72-31-81	Intercompressor Case
72-31-82	Multiple-jet Oil-nozzle Assembly
72-31-83	Oil-scavenge Accumulator Assembly
72-31-86	Fireseals
72-31-87	Drain Valve
72-31-88	Spring
72-31-89	P2.5 Bleed-air Adapter
72-31-91	Transfer Tube Adapter
72-31-92	Miscellaneous - Strainer Elements
72-31-93	Miscellaneous - Transfer Tubes
72-31-94	Sealing Tube
72-31-95	Oil Drain Adapter
72-31-96	Miscellaneous Covers and Plugs
72-31-97	Miscellaneous - Bearing Shields
72-31-98	Miscellaneous - Retaining Nuts
72-31-99	Miscellaneous - Adjusting Spacers
72-41-10	Gas Generator Case
72-41-11	No. 5-bearing Oil Nozzle
72-41-12	Strainer Element
72-41-30	HP-impeller Housing
72-41-31	Impeller Spacer
72-41-35	HP-impeller Seal Housing
72-41-36	No. 5-bearing-housing Stator Air Seal
72-41-37	HP Impeller Seal Ring
72-41-40	Combustion-chamber Outer Liner
72-41-41	Combustion-chamber Inner Liner
72-41-42	Vane-ring Front-inner-support Housing
72-41-43	No. 5-bearing Housing Cover
72-41-50	Combustion-chamber Small Exit Duct
72-41-51	Vane-segment Outer-support Housing
72-41-52	Cooling Air-nozzle Housing
72-41-53	Vane-ring Rear-inner-support Housing
72-41-54	HP Vane-ring Segment
72-41-55	Metal Seal Ring
72-41-84	Igniter Plug
72-41-85	P3 Bleed-air Venturi Adapter
72-41-86	Fireseals
72-41-87	Flow-directing Air-nozzle Assembly
72-41-88	Plug
72-41-89	Drain Valve Adapter
72-41-90	Drain Valve
72-41-91	Drain Valve Spring
72-41-92	Transfer Tube
72-41-93	Miscellaneous - Insulation Blanket Segments
72-41-94	Miscellaneous - Insulation Blanket Retainers
72-41-97	Miscellaneous - Fuel-manifold Transfer Tubes
72-41-98	Miscellaneous - Fuel-manifold Strainers
72-51-10	HP Turbine Front Cover
72-51-11	HP Turbine Rear Cover
72-51-12	HP Turbine Disk
72-51-13	HP Turbine Blade
72-51-14	HP Turbine Stubshaft
72-51-15	Interstage Airseal
72-51-17	No. 5 Bearing Spacer
72-51-18	HP-turbine Shroud Segment
72-51-19	No. 5-bearing Oil Slinger
72-51-20	HP-turbine Retaining Ring
72-51-21	Anti-rotation Ring
72-51-99	Miscellaneous - Plain Round Nut
72-52-12	LP Turbine Disk
72-52-13	LP Turbine Blade
72-52-14	LP-turbine Seal Housing
72-52-15	LP-turbine Shroud Segment
72-52-16	LP-turbine Stator and Seal Assembly
72-52-17	LP-stator Front Metal-seal-ring
72-52-18	LP-stator Rear Metal-seal-ring
72-52-19	LP-turbine Housing Seal
72-52-21	LP-shaft Air Seal
72-52-25	No. 6-bearing Rotor-air-seal Assembly
72-52-27	No. 6 Bearing Rotor Nut
72-52-99	Miscellaneous - Adjusting Spacers
72-53-10	First-stage PT Disk
72-53-11	PT Stubshaft
72-53-12	First-stage PT Blade
72-53-13	PT-rotor Air Seal
72-53-14	Interturbine Air Seal
72-53-15	Turbine-interstage Air Seal
72-53-16	Turbine-interstage Air-seal Assembly
72-53-20	Second-stage PT Disk
72-53-21	Second-stage PT Blade
72-53-22	Turbine Interstage Case
72-53-23	Interstage Case Metal-seal-ring
72-53-24	No. 6 and 7-bearing Housing
72-53-25	No. 6 and 7-bearing Housing Seal
72-53-26	Housing Seal Metal-seal-ring
72-53-27	PT-stator Retaining Rings
72-53-28	First-stage PT-stator Assembly
72-53-29	PT Stator Metal-seal-ring
72-53-30	Second-stage PT-stator Assembly
72-53-31	Hollow Pin
72-53-32	Tee-head Bolt
72-53-33	No. 6 and 7-bearing Transfer Tube
72-53-34	PT Baffle Assembly
72-53-35	Sealing Tube
72-53-36	Turbine Interstage Baffle
72-53-37	No. 7-bearing Retaining Ring
72-53-38	No. 6 Bearing Metal-seal-ring
72-53-39	No. 7 Bearing Metal-seal-ring
72-53-40	Power Turbine Shaft
72-53-44	PT-shaft Seal Housing
72-53-45	PT-shaft Carbon Seal
72-53-46	Seal-retaining Plate and Plate Assembly
72-53-47	No. 6 and 7-bearing-housing Intermediate Support
72-53-48	No. 2-bearing Labyrinth Seal
72-53-49	Oil Collector Ring
72-53-50	Labyrinth Seal
72-53-51	Plain Plug
72-53-52	PT Disk Cover
72-53-53	Transfer Tube Metal-seal-ring
72-53-61	Turbine Support Case
72-53-62	Turbine Exhaust Duct
72-53-89	Adapter
72-53-90	Miscellaneous - Transfer Tube
72-53-91	Miscellaneous - Strainer Elements
72-53-92	Bus-bars
72-53-93	Miscellaneous - Insulation Blanket Segments
72-53-94	Spring
72-53-98	Miscellaneous - Spacer
72-53-99	Miscellaneous - Retaining Nuts