Description
Pratt & Whitney Canada JT15D Turbofan Engine Maintenance Manual
This is the complete factory-issued maintenance manual for the Pratt & Whitney Canada JT15D series of turbofan engines, covering all models from the -1 through to the -4D. This is the document that overhaul shops and licensed engineers rely on for detailed disassembly, inspection, repair, and reassembly of the entire engine. Whether you are performing routine line maintenance, a hot section inspection, or a full heavy overhaul, this manual provides all the procedures, limits, and technical data you need.
File Details
- Manual Part Number: 3017542
- Revision: No. 51, dated Apr 26/2021
- Engine Models Covered: JT15D-1, -1A, -1B, -4, -4B, -4D
- Language: English
- Page Count: Over 1,100 pages
- File Format: High-Quality PDF
Complete PDF Bookmark Tree
Complete Bookmarks
The complete bookmarks in the “Pratt & Whitney Canada JT15D-1 -4 -4B -4D Engine Maintenance Manual – PDF” are as follows:
+MAINTENANCE MANUAL (Manual Part No. 3017542)p. 1
REVISION TRANSMITTAL SHEETp. 3
RECORD OF REVISIONSp. 5
RECORD OF TEMPORARY REVISIONSp. 6
LIST OF EFFECTIVE PAGESp. 7
TABLE OF CONTENTSp. 8
LIST OF CHAPTER/SECTION/SUBJECTSp. 9
TEMPORARY REVISION LISTp. 13
SERVICE BULLETIN LISTp. 15
+INTRODUCTIONp. 25
LIST OF EFFECTIVE PAGESp. 25
TABLE OF CONTENTSp. 27
INTRODUCTIONp. 29
SPECIAL TOOLS/FIXTURES AND EQUIPMENTp. 35
CONSUMABLE MATERIALSp. 74
+AIRWORTHINESS LIMITATIONSp. 105
LIST OF EFFECTIVE PAGESp. 105
TABLE OF CONTENTSp. 106
AIRWORTHINESS LIMITATIONSp. 107
+CHAPTER 70 – STANDARD PRACTICESp. 109
+70-00 – STANDARD PRACTICESp. 109
LIST OF EFFECTIVE PAGESp. 109
TABLE OF CONTENTSp. 111
70-00-00 – STANDARD PRACTICES – MAINTENANCE PROCEDURESp. 116
70-00-00 – STANDARD PRACTICES – SERVICINGp. 153
70-00-00 – STANDARD PRACTICES – REMOVAL/INSTALLATIONp. 154
70-00-00 – STANDARD PRACTICES – INSPECTIONp. 160
70-00-00 – STANDARD PRACTICES – CLEANINGp. 177
70-00-00 – STANDARD PRACTICES – REPAIRp. 179
+CHAPTER 71 – POWER PLANTp. 188
+71-00 – POWER PLANTp. 188
LIST OF EFFECTIVE PAGESp. 188
TABLE OF CONTENTSp. 190
71-00-00 – POWER PLANT – ADJUSTMENT/TESTp. 193
71-00-00 – POWER PLANT – CLEANINGp. 267
+CHAPTER 72 – ENGINEp. 278
+72-00 – ENGINEp. 278
LIST OF EFFECTIVE PAGESp. 278
TABLE OF CONTENTSp. 281
72-00-00 – ENGINE: TURBINE – DESCRIPTION AND OPERATIONp. 286
72-00-00 – ENGINE: TURBINE – FAULT ISOLATIONp. 304
72-00-00 – ENGINE: TURBINE – SERVICINGp. 344
72-00-00 – ENGINE: TURBINE – REMOVAL/INSTALLATIONp. 368
72-00-00 – ENGINE: TURBINE – INSPECTIONp. 381
+72-30 – COMPRESSOR SECTIONp. 431
LIST OF EFFECTIVE PAGESp. 431
TABLE OF CONTENTSp. 433
72-30-00 – COMPRESSOR SECTION – DESCRIPTION AND OPERATIONp. 438
72-30-01 – LP COMPRESSOR CASE AND STATORS – DESCRIPTION AND OPERATIONp. 439
72-30-01 – LP COMPRESSOR CASE AND STATORS – MAINTENANCE PRACTICESp. 441
72-30-02 – INTERMEDIATE CASE ASSEMBLY – DESCRIPTION AND OPERATIONp. 462
72-30-02 – INTERMEDIATE CASE ASSEMBLY – MAINTENANCE PRACTICESp. 465
72-30-03 – LP COMPRESSOR ROTOR ASSEMBLIES- DESCRIPTION AND OPERATIONp. 467
72-30-03 – LP COMPRESSOR ROTOR ASSEMBLIES- MAINTENANCE PRACTICESp. 472
72-30-04 – LPC SHAFT, NO.1 BEARING, TACHO-GENERATOR DRIVE – DESCRIPTION AND OPERATIONp. 497
72-30-05 – GAS GENERATOR CASE – DESCRIPTION AND OPERATIONp. 500
72-30-05 – GAS GENERATOR CASE – MAINTENANCE PRACTICESp. 502
72-30-06 – HIGH PRESSURE COMPRESSOR ASSEMBLY – DESCRIPTION AND OPERATIONp. 519
72-30-06 – HIGH PRESSURE COMPRESSOR ASSEMBLY – MAINTENANCE PRACTICESp. 521
+72-40 – COMBUTION SECTIONp. 523
LIST OF EFFECTIVE PAGESp. 523
TABLE OF CONTENTSp. 524
72-40-00 – COMBUSTION SECTION – DESCRIPTION AND OPERATIONp. 525
72-40-01 – COMBUSTION CHAMBER, LPT ST. SUPPORT- DESCRIPTION AND OPERATIONp. 527
72-40-01 – COMBUSTION CHAMBER, LPT STATOR SUPPORT – MAINTENANCE PRACTICESp. 530
+72-50 – TURBINE SECTIONp. 546
LIST OF EFFECTIVE PAGESp. 546
TABLE OF CONTENTSp. 549
72-50-00 – TURBINE SECTION – DESCRIPTION AND OPERATIONp. 554
72-50-01 – HPT STATOR, EXIT DUCTS – DESCRIPTION AND OPERATIONp. 556
72-50-01 – HPT STATOR, EXIT DUCTS – MAINTENANCE PRACTICESp. 559
72-50-02 – HP TURBINE DISK BALANCING ASSEMBLY – DESCRIPTION AND OPERATIONp. 591
72-50-02 – HP TURBINE DISK BALANCING ASSEMBLY – MAINTENANCE PRACTICESp. 593
72-50-03 – LP TURBINE ROTOR BALANCING ASSEMBLY – DESCRIPTION AND OPERATIONp. 615
72-50-03 – LP TURBINE ROTOR BALANCING ASSEMBLY – MAINTENANCE PRACTICESp. 617
72-50-04 – SECOND-STAGE LPT STATOR – DESCRIPTION AND OPERATIONp. 639
72-50-04 – SECOND-STAGE LPT STATOR – MAINTENANCE PRACTICESp. 641
72-50-05 – THIRD-STAGE LP TURBINE STATOR ASSEMBLY – DESCRIPTION AND OPERATIONp. 646
72-50-06 – EXHAUST DUCT, NO. 4 BEARING HOUSING – DESCRIPTION AND OPERATIONp. 647
72-50-06 – ENGINE CONTROLS – FAULT ISOLATIONp. 650
72-50-06 – EXHAUST DUCT, NO. 4 BEARING HOUSING – MAINTENANCE PRACTICESp. 651
+72-60 – ACCESSORY GEARBOXp. 715
LIST OF EFFECTIVE PAGESp. 715
TABLE OF CONTENTSp. 716
72-60-00 – ACCESSORY DRIVES – DESCRIPTION AND OPERATIONp. 718
72-60-01 – ACCESSORY GEARBOX AND DRIVESHAFT – DESCRIPTION AND OPERATIONp. 720
72-60-01 – ACCESSORY GEARBOX AND DRIVESHAFT – MAINTENANCE PRACTICESp. 721
72-60-02 – AGB EXTERNALS AND OIL PUMP – DESCRIPTION AND OPERATIONp. 727
72-60-02 – AGB EXTERNALS AND OIL PUMP- MAINTENANCE PRACTICESp. 730
72-60-03 – N1 TACHOMETER – GENERATOR DRIVESHAFT SEAL – MAINTENANCE PRACTICESp. 743
+72-70 – BYPASS SECTIONp. 748
LIST OF EFFECTIVE PAGESp. 748
TABLE OF CONTENTSp. 749
72-70-00 – BYPASS SECTION – DESCRIPTION AND OPERATIONp. 752
72-70-01 – FRONT INNER BYPASS DUCT ASSEMBLY – DESCRIPTIONp. 754
72-70-01 – FRONT INNER BYPASS DUCT ASSEMBLY – MAINTENANCE PRACTICESp. 757
72-70-02 – REAR INNER BYPASS DUCT ASSEMBLY – DESCRIPTION AND OPERATIONp. 768
72-70-02 – REAR INNER BYPASS DUCT ASSEMBLY – MAINTENANCE PRACTICESp. 770
72-70-03 – OUTER BYPASS DUCT ASSEMBLY – DESCRIPTION AND OPERATIONp. 778
72-70-03 – OUTER BYPASS DUCT ASSEMBLY – MAINTENANCE PRACTICESp. 780
72-70-04 – ENGINE REAR MOUNT INSTALLATION – DESCRIPTION AND OPERATIONp. 784
72-70-04 – ENGINE REAR MOUNT INSTALLATION – MAINTENANCE PRACTICESp. 785
+CHAPTER 73 – ENGINE FUEL AND CONTROLp. 792
+73-00 – ENGINE FUEL AND CONTROLp. 792
LIST OF EFFECTIVE PAGESp. 792
TABLE OF CONTENTSp. 793
73-00-00 – ENGINE FUEL AND CONTROL – DESCRIPTION AND OPERATIONp. 794
73-00-00 – ENGINE FUEL AND CONTROL – FAULT ISOLATIONp. 797
+73-10 – FUEL DISTRIBUTIONp. 798
LIST OF EFFECTIVE PAGESp. 798
TABLE OF CONTENTSp. 800
73-10-01 – FUEL-TO-OIL COOLER – DESCRIPTION AND OPERATIONp. 808
73-10-01 – FUEL-TO-OIL COOLER – MAINTENANCE PRACTICESp. 810
73-10-02 – FUEL PUMP – DESCRIPTION AND OPERATIONp. 818
73-10-02 – FUEL PUMP – MAINTENANCE PRACTICESp. 819
73-10-03 – FUEL TUBES, FDV TO FUEL MANIFOLD – DESCRIPTION AND OPERATIONp. 826
73-10-03 – FUEL TUBES, FDV TO FUEL MANIFOLD – MAINTENANCE PRACTICESp. 827
73-10-04 – FLOW DIVIDER VALVE – DESCRIPTION AND OPERATIONp. 833
73-10-04 – FLOW DIVIDER VALVE – MAINTENANCE PRACTICESp. 835
73-10-05 – FUEL MANIFOLD ASSEMBLY – DESCRIPTION AND OPERATIONp. 839
73-10-05 – FUEL MANIFOLD ASSEMBLY – MAINTENANCE PRACTICESp. 842
73-10-06 – FUEL DRAIN VALVE – DESCRIPTION AND OPERATIONp. 861
73-10-06 – FUEL DRAIN VALVE – MAINTENANCE PRACTICESp. 862
73-10-07 – FUEL FLOWMETER INSTALLATION – DESCRIPTION AND OPERATIONp. 865
73-10-07 – FUEL FLOWMETER INSTALLATION – MAINTENANCE PRACTICESp. 867
73-10-08 – MOTIVE FLOW VALVE – DESCRIPTION AND OPERATIONp. 868
73-10-08 – MOTIVE FLOW VALVE – MAINTENANCE PRACTICESp. 870
73-10-09 – FUEL PRESSURE AND BYPASS TUBES – DESCRIPTION AND OPERATIONp. 874
73-10-09 – FUEL PRESSURE AND BYPASS TUBES – MAINTENANCE PRACTICESp. 875
73-10-10 – HP COMPRESSOR AIR DELIVERY TUBES – DESCRIPTION AND OPERATIONp. 879
73-10-10 – HP COMPRESSOR AIR DELIVERY TUBES – MAINTENANCE PRACTICESp. 880
73-10-11 – EMERGENCY FUEL SHUTOFF SYSTEM – DESCRIPTION AND OPERATIONp. 886
73-10-11 – EMERGENCY FUEL SHUTOFF – MAINTENANCE PRACTICESp. 891
+73-20 – FUEL CONTROLp. 899
LIST OF EFFECTIVE PAGESp. 899
TABLE OF CONTENTSp. 900
73-20-01 – FUEL CONTROL UNIT – DESCRIPTION AND OPERATION Mayp. 901
73-20-01 – FUEL CONTROL UNIT – FAULT ISOLATIONp. 910
73-20-01 – FUEL CONTROL UNIT – MAINTENANCE PRACTICESp. 911
+CHAPTER 74 – IGNITIONp. 924
+74-00 – IGNITIONp. 924
LIST OF EFFECTIVE PAGESp. 924
TABLE OF CONTENTSp. 925
74-00-00 – IGNITION – DESCRIPTION AND OPERATIONp. 926
74-00-00 – IGNITION – FAULT ISOLATIONp. 929
74-00-00 – IGNITION – MAINTENANCE PRACTICESp. 930
+74-10 – ELECTRICAL POWER SUPPLYp. 932
LIST OF EFFECTIVE PAGESp. 932
TABLE OF CONTENTSp. 933
74-10-01 – IGNITION EXCITER – DESCRIPTION AND OPERATIONp. 934
74-10-01 – IGNITION EXCITER – MAINTENANCE PRACTICESp. 935
+74-20 – DISTRIBUTIONp. 944
LIST OF EFFECTIVE PAGESp. 944
TABLE OF CONTENTSp. 945
4-20-01 – IGNITION EXCITER CABLES – DESCRIPTION AND OPERATIONp. 947
74-20-01 – IGNITION EXCITER CABLES – MAINTENANCE PRACTICESp. 949
74-20-02 – PARK IGNITERS – DESCRIPTION AND OPERATIONp. 959
74-20-02 – SPARK IGNITERS – MAINTENANCE PRACTICESp. 961
+CHAPTER 75 – AIRp. 968
+75-00 – AIRp. 968
LIST OF EFFECTIVE PAGESp. 968
TABLE OF CONTENTSp. 969
75-00-00 – AIR SYSTEMS – DESCRIPTION AND OPERATIONp. 971
75-00-01 – T1 THERMOCOUPLE ANTI-ICING AIR TUBE – MAINTENANCE PRACTICESp. 979
75-00-02 – LP COMPRESSOR ANTI-ICING SOLENOID VALVE – MAINTENANCE PRACTICESp. 985
75-00-03 – CABIN AIR BLEED – MAINTENANCE PRACTICESp. 992
+CHAPTER 77 – ENGINE INDICATINGp. 993
+77-00 – ENGINE INDICATINGp. 993
LIST OF EFFECTIVE PAGESp. 993
TABLE OF CONTENTSp. 994
77-00-00 – ITT SENSING SYSTEM – DESCRIPTION AND OPERATIONp. 997
77-00-00 – INTERTURBINE TEMPERATURE SENSING SYSTEM – FAULT ISOLATIONp. 1002
77-00-01 – T1 THERMOCOUPLE WIRING HARNESS – MAINTENANCE PRACTICESp. 1003
77-00-02 – T6 WIRING HARNESS AND PROBES – MAINTENANCE PRACTICESp. 1023
77-00-03 – BYPASS DUCT PRESSURE (Psd) SENSING – DESCRIPTION AND OPERATIONp. 1044
77-00-03 – BYPASS AIR PRESSURE SENSING SYSTEM – MAINTENANCE PRACTICESp. 1046
+CHAPTER 79 – OILp. 1049
+79-00 – OILp. 1049
LIST OF EFFECTIVE PAGESp. 1049
TABLE OF CONTENTSp. 1050
79-00-00 – OIL SYSTEM – DESCRIPTION AND OPERATIONp. 1051
79-00-01 – OIL SYSTEM – FAULT ISOLATIONp. 1054
+79-20 – OIL DISTRIBUTIONp. 1055
LIST OF EFFECTIVE PAGESp. 1055
TABLE OF CONTENTSp. 1056
79-20-00 – DISTRIBUTION- DESCRIPTION AND OPERATIONp. 1059
79-20-01 – OIL FILTER ELEMENT AND HOUSING – DESCRIPTION AND OPERATIONp. 1061
79-20-01 – OIL FILTER ELEMENT AND HOUSING – MAINTENANCE PRACTICESp. 1062
79-20-02 – CHECK VALVES, COUPLING AND TUBES – DESCRIPTION AND OPERATIONp. 1083
79-20-02 – CHECK VALVES, COUPLING AND TUBES – MAINTENANCE PRACTICESp. 1084
79-20-03 – EXTERNAL PRESSURE OIL TUBES – MAINTENANCE PRACTICESp. 1094
79-20-04 – EXTERNAL SCAVENGE OIL TUBES – MAINTENANCE PRACTICESp. 1102
+79-30 – OIL INDICATINGp. 1109
LIST OF EFFECTIVE PAGESp. 1109
TABLE OF CONTENTSp. 1110
79-30-00 – OIL INDICATING – DESCRIPTION AND OPERATIONp. 1111
79-30-01 – OIL FILLER-NECK AND OIL FILLER CAP – MAINTENANCE PRACTICESp. 1112
Chapters & Major Sections Covered
- Introduction: How to use the manual, safety, consumable materials, and special tools
- Airworthiness Limitations: Mandatory service life limits for rotor components
- Standard Practices: Torque recommendations, lockwiring, safety cable installation, metal particle identification, and marking of parts
- Power Plant (71-00): Ground testing, engine operating limits, trim balancing, and extreme weather procedures
- Engine: Turbine (72-00): Full description and operation, fault isolation, servicing (oil, shipping, preservation), removal/installation, and inspection (periodic, HSI, and unscheduled conditions)
- Compressor Section (72-30): LP compressor case, rotor assemblies, intermediate case, gas generator case, and HP compressor
- Combustion Section (72-40): Combustion chamber liner and LP turbine stator support
- Turbine Section (72-50): HPT stator, HPT disk, LPT rotor, second-stage LPT stator, and exhaust duct with No.4 bearing housing
- Accessory Gearbox (72-60): AGB driveshaft, oil pump, seals, and N1 tachometer drive
- Bypass Section (72-70): Inner and outer bypass ducts, rear engine mount
- Engine Fuel and Control (73-00): Fuel-to-oil cooler, fuel pump, flow divider valve, fuel manifold, motive flow valve, P3 air tubes, and emergency fuel shutoff
- Ignition (74-00): Ignition exciter, cables, and spark igniters
- Air Systems (75-00): Anti-icing, solenoid valve, and cabin air bleed
- Engine Indicating (77-00): ITT sensing, T1 and T6 thermocouple harnesses, and bypass duct pressure sensing
- Oil System (79-00): Oil distribution, filter element, check valves, pressure and scavenge tubes
This manual goes far beyond a simple owner’s guide. It provides detailed step-by-step instructions for every major maintenance action, including disassembling the engine into its major modules, removing and installing the fan, turbines, and bearings, setting up the fuel control unit, and performing complex balancing procedures. The ‘Fits and Clearances’ sections give you the exact engineering limits and torque loadings for every critical fastener, ensuring that every repair meets factory specifications.
Why You Need This Manual
Working on a JT15D engine without the correct manual is not only difficult but can also be dangerous and expensive. A single mistake in torquing a turbine disk nut or setting the fuel control can lead to catastrophic engine failure. This manual puts all the necessary information in your hands, allowing you to perform tasks with the same level of accuracy as a certified overhaul facility. From understanding complex fuel control schematics to safely removing and installing the high-pressure turbine, this PDF is your definitive guide. You will be able to perform an engine hot section inspection (HSI), troubleshoot and repair the oil and fuel systems, and understand the intricate air and control systems that make this engine work. The chapters on vibration analysis and fan trim balancing are essential for maintaining a smooth-running engine.
Instant PDF Delivery
Upon purchase, you will receive immediate access to download this comprehensive manual as a PDF. The file is fully printable and searchable, allowing you to take it to the hangar on your tablet or laptop, or print the specific pages you need for your current task. No shipping costs, no waiting. This is the exact same manual used by professionals, delivered instantly to your device.
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