1. Air Canada Technical Services
Engine Component Repair Capabilities
CFM56-3 Engines

2. Engine Components - Repair Development Expertise
With over 60 years of experience in engine maintenance, Air Canada Technical Services’ ability to reduce your engine maintenance costs is second to none. We have a strong engineering team dedicated specifically to address your needs for engine component repairs. You send the damaged component to us and we fix it. Simple as that! Our expertise in engine component repair development has resulted in significant savings for Air Canada and our numerous customers over the years. We can offer you our existing repairs or develop one unique to your requirements and have it approved by Transport Canada (AE- 100) or by an FAA/DER (8110-3). You can’t afford to wait any longer. Let us show you what we can do.

3. CFM56-3 HPC 4 To 9 Spool Typical P/N’s Major EM Repairs Performed
ATA
CFM56-3 HPC 4 To 9 Spool
Typical P/N’s
9995M23G01
Major EM Repairs Performed
R001-Repair of Coating on Seal Teeth.
R002-Repair of Illegible Part Markings.
R003-Repair of Fwd or Aft Rabbet Diameter.
Air Canada Technical Services Centre Air Canada 1026, C.P. 9000, Dorval, Quebec, H4Y 1C2 - Canada
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4. CFM56-3 HPC Front Stator Assy
ATA
CFM56-3 HPC Front Stator Assy
Typical P/N’s
1499M30G01
Major EM Repairs Performed
R001-Repair Key Locked Insert.
R002-Weld Repair Rotation Stop.
R003-Repair Boroscope Port Thread.
R004-Repair Fwd or Aft Flange Rabbet Diameter.
R005-Replace Vane Sector Stop.
R006-T Slot Repair.
R007-Crack Repair Titanium Case.
R008- Repair Flow Path.
R009-Repair Threaded Holes.
R010-Repair Boroscope Port Threads.
R011-Crack Repair Boroscope Boss.
R012-Heat Treat Temper Repair.
R014-Repair Stage 4 -5 Vane Rails.
Air Canada Technical Services Centre Air Canada 1026, C.P. 9000, Dorval, Quebec, H4Y 1C2 - Canada
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5. CFM56-3 HPC Rear Stator Assembly
ATA
CFM56-3 HPC Rear Stator Assembly
Typical P/N’s
1275M99G02
Major EM Repairs Performed
R001-Repair Boroscope Port Threads.
R002- Replace Welded Anti-Rotation Lugs.
R003/4-Repair Aft Flange Rabbit Diameter.
R005-Apply Rub Coat.
R006-Repair Forward Lip Outer Diameter.
R007-Weld Repair Cracked Incoloy 903 Cases.
R008-Weld Repair Cracked Incoloy 907/909 Cases.
R009-Weld Repair Cracked Incoloy 909 Cases.
Air Canada Technical Services Centre Air Canada 1026, C.P. 9000, Dorval, Quebec, H4Y 1C2 - Canada
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6. CFM56-3 Combustion Case Typical P/N’s Major EM Repairs Performed
ATA
CFM56-3 Combustion Case
Typical P/N’s
9523M17G10
Major EM Repairs Performed
R001-Threaded Holes Repair.
R002-Blend OGVs
Air Canada Technical Services Centre Air Canada 1026, C.P. 9000, Dorval, Quebec, H4Y 1C2 - Canada
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7. CFM56-3 Fuel Manifold Typical P/N’s Major EM Repairs Performed
ATA
CFM56-3 Fuel Manifold
Typical P/N’s
9375M90G06
Major EM Repairs Performed
R001-Fuel Tube Dent Repair.
R002-Repair of Silver Plate, Fuel Tube Nuts.
Air Canada Technical Services Centre Air Canada 1026, C.P. 9000, Dorval, Quebec, H4Y 1C2 - Canada
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8. CFM56-3 Rear Rotating Air Seal
ATA
CFM56-3 Rear Rotating Air Seal
Typical P/N’s
9514M68P01
Major EM Repairs Performed
R001-Repair of Coating on Seal Teeth
R002-Repair of Illegible Part Markings.
R003-Repair of Fwd or Aft Rabbet Diameter.
Air Canada Technical Services Centre Air Canada 1026, C.P. 9000, Dorval, Quebec, H4Y 1C2 - Canada
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9. CFM56-3 Combustion Chamber Assembly (Bolted Dome)
ATA
CFM56-3 Combustion Chamber Assembly (Bolted Dome)
Typical P/N’s
1493M63G01
Major EM Repairs Performed
Inspect and Overhaul as Required.
Disassemble, Inspect, Repair or Replace Sub Components as Required. Apply Thermal Barrier Coating. New Nuts and Bolts.
All Additional Replacement Parts Charged Separately.
Air Canada Technical Services Centre Air Canada 1026, C.P. 9000, Dorval, Quebec, H4Y 1C2 - Canada
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10. CFM56-3 Combustor Inner Cowl
ATA
CFM56-3 Combustor Inner Cowl
Typical P/N’s
9531M11G02
Major EM Repairs Performed
R002-Inspect and Rework
Air Canada Technical Services Centre Air Canada 1026, C.P. 9000, Dorval, Quebec, H4Y 1C2 - Canada
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11. CFM56-3 Combustor Dome (Bolted)
ATA
CFM56-3 Combustor Dome (Bolted)
Typical P/N’s
1317M58G01
Major EM Repairs Performed
R001-Weld Repair, Re-size, Stress Relief.
R002-Primary Swirler Nozzle Repair/Replacement.
R003-Repair Swirler Anti-Rotation Tangs.
R005-Remove Thermal Barrier Coating.
R006-Apply Thermal Barrier Coating.
R007-Replace Secondary Nozzle Flange.
R008-Replace Primary Swirler Retainer.
R009-Weld Repair Bolt Holes.
R010-Deflector Replacement.
R012-Swirler Replacement.
R013-Resize Dome.
Air Canada Technical Services Centre Air Canada 1026, C.P. 9000, Dorval, Quebec, H4Y 1C2 - Canada
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12. CFM56-3 Combustor Inner Liner
ATA
CFM56-3 Combustor Inner Liner
Typical P/N’s
1317M89G01
Major EM Repairs Performed
R001-Weld Repair, Resize Stress Relief.
R002-Repair of Inner Liner Seal.
R003-Remove Nut Plates.
R004-Replace Nut Plates.
R005-Remove Thermal Barrier Coating.
R006-Replace Thermal Barrier Coating.
R007-Repair Liner Bolt Holes.
R008-Weld Patch Repair.
R009- Repair Inner Liner Aft Support Ring.
R010-Repair Bolt Holes.
R011-Support Leg Weld Repair.
R012-Apply Thicker Thermal Barrier Coating.
Air Canada Technical Services Centre Air Canada 1026, C.P. 9000, Dorval, Quebec, H4Y 1C2 - Canada
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13. CFM56-3 Combustor Outer Liner
ATA
CFM56-3 Combustor Outer Liner
Typical P/N’s
1317M90G01
Major EM Repairs Performed
R001-Weld Repair and Resize.
R002-Aft Seal Flange Restoration.
R003-Remove Thermal Barrier Coating.
R004-Replace Thermal Barrier Coating.
R005-Remove Lug Ring.
R006- Replace Lug Ring.
R007-Repair Bolt Holes.
R008-Weld, Resize, Stress Relief.
R009- Igniter Sleeve Ferrule Repair/Replacement.
R012-Weld Patch Repair.
R013-Repair Lug Ring Aft Surface.
R014-Replace Igniter Ferrule.
R015-Weld Repair Aft Seal Flange.
R016-Apply Thick Thermal Barrier Coating.
R017-Igniter Port Local Sizing Repair.
R019-Replace Outer Liner Support Ring.
Air Canada Technical Services Centre Air Canada 1026, C.P. 9000, Dorval, Quebec, H4Y 1C2 - Canada
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14. CFM56-3 Air Impingement Manifold
ATA
CFM56-3 Air Impingement Manifold
Typical P/N’s
9513M16G04
Major EM Repairs Performed
R001-Tack Weld Repair Manifolds.
Air Canada Technical Services Centre Air Canada 1026, C.P. 9000, Dorval, Quebec, H4Y 1C2 - Canada
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15. CFM56-3 LPT Stage 4 Disk Typical P/N’s Major EM Repairs Performed
ATA
CFM56-3 LPT Stage 4 Disk
Typical P/N’s
Major EM Repairs Performed
Clean and Inspect.
Air Canada Technical Services Centre Air Canada 1026, C.P. 9000, Dorval, Quebec, H4Y 1C2 - Canada
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16. CFM56-3 LPT Stage 1 Disk Typical P/N’s Major EM Repairs Performed
ATA
CFM56-3 LPT Stage 1 Disk
Typical P/N’s
Major EM Repairs Performed
Clean and Inspect
Air Canada Technical Services Centre Air Canada 1026, C.P. 9000, Dorval, Quebec, H4Y 1C2 - Canada
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17. CFM56-3 LPT Stage 3 Disk Typical P/N’s Major EM Repairs Performed
ATA
CFM56-3 LPT Stage 3 Disk
Typical P/N’s
Major EM Repairs Performed
Clean and Inspect
Air Canada Technical Services Centre Air Canada 1026, C.P. 9000, Dorval, Quebec, H4Y 1C2 - Canada
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18. CFM56-3 LPT Stage 2 Disk Typical P/N’s Major EM Repairs Performed
ATA
CFM56-3 LPT Stage 2 Disk
Typical P/N’s
Major EM Repairs Performed
Clean and Inspect
Air Canada Technical Services Centre Air Canada 1026, C.P. 9000, Dorval, Quebec, H4Y 1C2 - Canada
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19. CFM56-3 LPT Rotating Airseal Stage 1
ATA
CFM56-3 LPT Rotating Airseal Stage 1
Typical P/N’s
Major EM Repairs Performed
R002-Recondition Retaining Mating face.
R003-Touchup Seal teeth.
R004-Weld Repair of Seal Teeth.
Air Canada Technical Services Centre Air Canada 1026, C.P. 9000, Dorval, Quebec, H4Y 1C2 - Canada
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20. CFM56-3 LPT Rotating Airseal Stage 3
ATA
CFM56-3 LPT Rotating Airseal Stage 3
Typical P/N’s
Major EM Repairs Performed
R002-Recondition Retaining Mating Face.
R003-Touchup Seal Teeth.
R004-Weld Repair of Seal Teeth.
Air Canada Technical Services Centre Air Canada 1026, C.P. 9000, Dorval, Quebec, H4Y 1C2 - Canada
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21. CFM56-3 LPT Rotating Airseal Stage 4
ATA
CFM56-3 LPT Rotating Airseal Stage 4
Typical P/N’s
Major EM Repairs Performed
R002-Recondition Retaining Mating Face.
R003-Touchup Seal Teeth.
R004-Weld Repair of Seal Teeth.
Air Canada Technical Services Centre Air Canada 1026, C.P. 9000, Dorval, Quebec, H4Y 1C2 - Canada
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22. CFM56-3 LPT Rotating Airseal Stage 2
ATA
CFM56-3 LPT Rotating Airseal Stage 2
Typical P/N’s
Major EM Repairs Performed
R002-Recondition Retaining Mating Face.
R003-Touchup Seal Teeth.
R004-Weld Repair of Seal Teeth.
Air Canada Technical Services Centre Air Canada 1026, C.P. 9000, Dorval, Quebec, H4Y 1C2 - Canada
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23. CFM56-3 #5 Bearing Nut Typical P/N’s Major EM Repairs Performed
ATA
CFM56-3 #5 Bearing Nut
Typical P/N’s
Major EM Repairs Performed
R001-Repair of Mating Faces.
R002-Recondition of Silver Coating
Air Canada Technical Services Centre Air Canada 1026, C.P. 9000, Dorval, Quebec, H4Y 1C2 - Canada
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24. CFM56-3 Duct Rear Vent Typical P/N’s Major EM Repairs Performed
ATA
CFM56-3 Duct Rear Vent
Typical P/N’s
Major EM Repairs Performed
R001-Replacement of Locating Pins
R002-Locating Slots by Welding.
R003- Recondition Front Locating Diameter.
Air Canada Technical Services Centre Air Canada 1026, C.P. 9000, Dorval, Quebec, H4Y 1C2 - Canada
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25. CFM56-3 LPT Frame (TRF) Typical P/N’s Major EM Repairs Performed
ATA
CFM56-3 LPT Frame (TRF)
Typical P/N’s
Major EM Repairs Performed
R001 To R005
Replace Details
R006- Restore Face
R007- Restore Diameter
R008- Restore Face
R009- Replace Tube Fittings
R011 To R013-Restore Faces
R015,016- Restore diameters
R017- Replace Tube
R018- Replace Tube
R020- Weld Repair Cracks
ACR01- Blend Repair Cracks (DER # RDE )
ACR02- Weld Repair Cracks (DER# RDE )
R022- Stud Replacement.
R023- Install Bushings
R025- Install Bushings
R026-Replace Clevis Bushes.
R027-Replace heat Shields.
Note: ACR01 and ACR02 are in-house developed repairs based on R021.
Air Canada Technical Services Centre Air Canada 1026, C.P. 9000, Dorval, Quebec, H4Y 1C2 - Canada
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26. CFM56-3 #5 Bearing Support Typical P/N’s Major EM Repairs Performed
ATA
CFM56-3 #5 Bearing Support
Typical P/N’s
Major EM Repairs Performed
R001-Replace Swaged Self Locking Inserts.
R002- Recondition Abradable Coating.
R003-Recondition Rabbet Diameter F.
R004-Recondition Oil Scavenge Tube Nipple Spherical Seating Surface.
R005- Recondition Rabbet Diameter D.
R006- Recondition Rabbet Diameter G.
Air Canada Technical Services Centre Air Canada 1026, C.P. 9000, Dorval, Quebec, H4Y 1C2 - Canada
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27. CFM56-3 Inlet Gearbox Housing
ATA
CFM56-3 Inlet Gearbox Housing
Typical P/N’s
9976M74G04
Major EM Repairs Performed
R001-Replace Oil Nozzles and Plugs.
R002-Repair Stripped Jackscrew Holes.
Air Canada Technical Services Centre Air Canada 1026, C.P. 9000, Dorval, Quebec, H4Y 1C2 - Canada
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