t900 pre test inspection booklet
TRANSCRIPT
![Page 1: T900 Pre Test Inspection Booklet](https://reader036.vdocuments.mx/reader036/viewer/2022062312/5535edcf4a7959ca198b47d7/html5/thumbnails/1.jpg)
Trent Engine – 900 series
Engine Inspection Guide
![Page 2: T900 Pre Test Inspection Booklet](https://reader036.vdocuments.mx/reader036/viewer/2022062312/5535edcf4a7959ca198b47d7/html5/thumbnails/2.jpg)
Front View
Areas to observe
•Spinner
•Annulus Fillers
•Fan Blades
•Acoustic Panels
![Page 3: T900 Pre Test Inspection Booklet](https://reader036.vdocuments.mx/reader036/viewer/2022062312/5535edcf4a7959ca198b47d7/html5/thumbnails/3.jpg)
Location: Fan case 6 o’clock position System: Mechanical
Possible Defects:
Two-way adaptor connecting to oil tubes not indicated with torque seal.
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Location: SpinnerSystem: Non ModularPossible Defects:
Coating loss. Scoring, cracking and damaged or delaminated rubber nose cap.
![Page 5: T900 Pre Test Inspection Booklet](https://reader036.vdocuments.mx/reader036/viewer/2022062312/5535edcf4a7959ca198b47d7/html5/thumbnails/5.jpg)
Location: Fan case System: Mechanical
Possible Defects:
2 cases of FOD (1 metallic, 1 hard plastic) found.
![Page 6: T900 Pre Test Inspection Booklet](https://reader036.vdocuments.mx/reader036/viewer/2022062312/5535edcf4a7959ca198b47d7/html5/thumbnails/6.jpg)
Location: Fan case System: Mechanical
Possible Defects:
Bracket at 8 o’clock position found with missing clinch nut
![Page 7: T900 Pre Test Inspection Booklet](https://reader036.vdocuments.mx/reader036/viewer/2022062312/5535edcf4a7959ca198b47d7/html5/thumbnails/7.jpg)
Location: Annulus Fillers & Fan BladesSystem: Non ModularPossible Defects:
Nicks, dents, scratches, corrosion pitting or missing anti-erosion coating. Nicks, dents, corrosion pitting, blunt leading edge or burnt surfaces.
![Page 8: T900 Pre Test Inspection Booklet](https://reader036.vdocuments.mx/reader036/viewer/2022062312/5535edcf4a7959ca198b47d7/html5/thumbnails/8.jpg)
Location: Fan Case System: Mechanical
Possible Defects:
Air duct not blanked.
![Page 9: T900 Pre Test Inspection Booklet](https://reader036.vdocuments.mx/reader036/viewer/2022062312/5535edcf4a7959ca198b47d7/html5/thumbnails/9.jpg)
Location: Acoustic PanelsSystem: Module 34Possible Defects:
Abnormal galling, deep rubbing, delamination, cracks or dents.
![Page 10: T900 Pre Test Inspection Booklet](https://reader036.vdocuments.mx/reader036/viewer/2022062312/5535edcf4a7959ca198b47d7/html5/thumbnails/10.jpg)
LHS of engine
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1.3.
4.
2.
Areas to observe
1. Starter Control Valve
2. EEC and electrical harnesses
3. Igniters & Ignition System
4. IDG & IDG AOHE
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Location: Starter Control ValveSystem: Starter System – Non ModularPossible Defects:
Alignment marking & clamp secured & sealed – as indicated in red circle.Flapper valve is at close position – as indicated by red arrow.
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Location: EECSystem: E & I SystemPossible Defects:
Loose bolts, nuts, terminals, connections.
![Page 14: T900 Pre Test Inspection Booklet](https://reader036.vdocuments.mx/reader036/viewer/2022062312/5535edcf4a7959ca198b47d7/html5/thumbnails/14.jpg)
Location: Igniters & Ignition SystemSystem: Ignition SystemPossible Defects:
Loose connections, bolts, nuts. Chaffing or frayed wiring.
![Page 15: T900 Pre Test Inspection Booklet](https://reader036.vdocuments.mx/reader036/viewer/2022062312/5535edcf4a7959ca198b47d7/html5/thumbnails/15.jpg)
Location: IDG & IDG AOHESystem: Module 61Possible Defects:
Damage on the AOHE & loose or damaged connections
![Page 16: T900 Pre Test Inspection Booklet](https://reader036.vdocuments.mx/reader036/viewer/2022062312/5535edcf4a7959ca198b47d7/html5/thumbnails/16.jpg)
Location: Fire Detector & Starter ClampSystem: Module 61Possible Defects:
Bent or broken wire (fire detector), Improper Installation of starter clamp.
![Page 17: T900 Pre Test Inspection Booklet](https://reader036.vdocuments.mx/reader036/viewer/2022062312/5535edcf4a7959ca198b47d7/html5/thumbnails/17.jpg)
Location: Bifurcation Panel ServicesSystem: Fuel, Air and IgnitionPossible Defects:
Incorrect wire-locking, absence of sealant, loose bolts & nuts, loose installation of fuel, oil and air tubes on panel & chaffing of tubes & wires.
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Inside M34, on M32 (LHS & RHS of engine)
Areas to observe
• ‘A’ frame
• VIGV rubbing strips & bushings
• VSV Actuators
• Rear Acoustic Panels
![Page 19: T900 Pre Test Inspection Booklet](https://reader036.vdocuments.mx/reader036/viewer/2022062312/5535edcf4a7959ca198b47d7/html5/thumbnails/19.jpg)
Location: ‘A’ FrameSystem: Module 34Possible Defects:
Cracked screw holes
![Page 20: T900 Pre Test Inspection Booklet](https://reader036.vdocuments.mx/reader036/viewer/2022062312/5535edcf4a7959ca198b47d7/html5/thumbnails/20.jpg)
Location: VIGV rubbing strips & bushingsSystem: Module 32Possible Defects:
Missing or delaminated rubbing strips & missing bushings
![Page 21: T900 Pre Test Inspection Booklet](https://reader036.vdocuments.mx/reader036/viewer/2022062312/5535edcf4a7959ca198b47d7/html5/thumbnails/21.jpg)
Location: VSV ActuatorSystem: Module 32Possible Defects:
Unlocked split pins, improper wire locking, chaffing, nicks & dents on tubes.
![Page 22: T900 Pre Test Inspection Booklet](https://reader036.vdocuments.mx/reader036/viewer/2022062312/5535edcf4a7959ca198b47d7/html5/thumbnails/22.jpg)
Location: Rear Acoustic PanelsSystem: Module 34Possible Defects:
Delamination, cracks on trailing edges.Loosen screws, blanking on the AOHE should be there.
![Page 23: T900 Pre Test Inspection Booklet](https://reader036.vdocuments.mx/reader036/viewer/2022062312/5535edcf4a7959ca198b47d7/html5/thumbnails/23.jpg)
Areas to observe
1. Bleed system
2. Burners (FSNs)
3. Electrical connections
4. Overheat detectors thermocouples
2.4.
3.
1.
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Location: HP Bleed Valve DuctSystem: Bleed SystemPossible Defects:
Torn, cracked & worn rubber.
![Page 25: T900 Pre Test Inspection Booklet](https://reader036.vdocuments.mx/reader036/viewer/2022062312/5535edcf4a7959ca198b47d7/html5/thumbnails/25.jpg)
Location: Hose, Couplings & Vent ValveSystem: Bleed SystemPossible Defects:
Improper Installation of couplings, damaged hose & damaged threads on vent valve.
![Page 26: T900 Pre Test Inspection Booklet](https://reader036.vdocuments.mx/reader036/viewer/2022062312/5535edcf4a7959ca198b47d7/html5/thumbnails/26.jpg)
Location: Fuel Spray Nozzles & Igniters
System: Fuel & Ignition System
Possible Defects:
Nicks, dents, scoring or other damage on fuel tube as indicated by red arrow.Igniter & FSNs are properly installed & wire-locked as indicated by green arrow.
![Page 27: T900 Pre Test Inspection Booklet](https://reader036.vdocuments.mx/reader036/viewer/2022062312/5535edcf4a7959ca198b47d7/html5/thumbnails/27.jpg)
Location: Electrical harnessesSystem: E & I SystemPossible Defects:
Bent, burnt, chafed, broken & exposed harnesses. Loose or missing bolts & nuts & terminals
![Page 28: T900 Pre Test Inspection Booklet](https://reader036.vdocuments.mx/reader036/viewer/2022062312/5535edcf4a7959ca198b47d7/html5/thumbnails/28.jpg)
Location: ThermocouplesSystem: E & I system (on Module 51)Possible Defects:
Badly dented or elongated bolt holesPoor welding
![Page 29: T900 Pre Test Inspection Booklet](https://reader036.vdocuments.mx/reader036/viewer/2022062312/5535edcf4a7959ca198b47d7/html5/thumbnails/29.jpg)
Back of Engine
Areas to observe
1. Engine indicating System
2. Exhaust Strut Case
3. Drain Tubes
1.
2.
3.
![Page 30: T900 Pre Test Inspection Booklet](https://reader036.vdocuments.mx/reader036/viewer/2022062312/5535edcf4a7959ca198b47d7/html5/thumbnails/30.jpg)
Location: Speed probesSystem: Engine Indicating SystemPossible Defects:
Burnt or loose connections & clamps
![Page 31: T900 Pre Test Inspection Booklet](https://reader036.vdocuments.mx/reader036/viewer/2022062312/5535edcf4a7959ca198b47d7/html5/thumbnails/31.jpg)
RHS of engine
![Page 32: T900 Pre Test Inspection Booklet](https://reader036.vdocuments.mx/reader036/viewer/2022062312/5535edcf4a7959ca198b47d7/html5/thumbnails/32.jpg)
Areas to observe
1. Case Cooling Air Valve & Air System
2. Fuel & Ignition System
3. Bleed System
![Page 33: T900 Pre Test Inspection Booklet](https://reader036.vdocuments.mx/reader036/viewer/2022062312/5535edcf4a7959ca198b47d7/html5/thumbnails/33.jpg)
Location: Cooling Air ValveSystem: Module 51Possible Defects:
Broken, chafed, frayed, damaged or loose electrical connections and air tubes.Harnesses to be tied with frapping lash.
![Page 34: T900 Pre Test Inspection Booklet](https://reader036.vdocuments.mx/reader036/viewer/2022062312/5535edcf4a7959ca198b47d7/html5/thumbnails/34.jpg)
Location: Igniters, FSNs.System: Fuel SystemPossible Defects:
Loose connections, poor wirelocking on FSNs, Loose Boroscope ports, damaged tubings, bolts, nuts & clamps.
![Page 35: T900 Pre Test Inspection Booklet](https://reader036.vdocuments.mx/reader036/viewer/2022062312/5535edcf4a7959ca198b47d7/html5/thumbnails/35.jpg)
Location: Bleed Valve and surroundingsSystem: Bleed SystemPossible Defects:
Damaged, worn or torn seal. Loose connections, chaffing of tubes and harnesses. Ensure no missing bolts.
![Page 36: T900 Pre Test Inspection Booklet](https://reader036.vdocuments.mx/reader036/viewer/2022062312/5535edcf4a7959ca198b47d7/html5/thumbnails/36.jpg)
Areas to observe
1. Oil Pressure System
2. Fuel Metering Unit
1. 2.
![Page 37: T900 Pre Test Inspection Booklet](https://reader036.vdocuments.mx/reader036/viewer/2022062312/5535edcf4a7959ca198b47d7/html5/thumbnails/37.jpg)
Location: Oil Pressure Transmitter & FilterSystem: Oil SystemPossible Defects:
Loose & missing connections, damaged tubings & clamps. Loose bolts, nuts, clamps. Damaged brackets.
![Page 38: T900 Pre Test Inspection Booklet](https://reader036.vdocuments.mx/reader036/viewer/2022062312/5535edcf4a7959ca198b47d7/html5/thumbnails/38.jpg)
Location: Hydro Mechanical UnitSystem: Fuel SystemPossible Defects:
Loose or no wire locking, damaged tubings, loose or missing bolts, nuts & clamps, proper blanking and chaffing of tubes.
![Page 39: T900 Pre Test Inspection Booklet](https://reader036.vdocuments.mx/reader036/viewer/2022062312/5535edcf4a7959ca198b47d7/html5/thumbnails/39.jpg)
Areas to observe
1. FOHE & Fuel Filter
2. Fuel & Hydraulic Plumbing
3. Oil Tank
4. AOHE
5. Kevlar Wrap – to look for tears, punctures or delamination.
1.
2.
4.
3.
5.
![Page 40: T900 Pre Test Inspection Booklet](https://reader036.vdocuments.mx/reader036/viewer/2022062312/5535edcf4a7959ca198b47d7/html5/thumbnails/40.jpg)
Location: FOHE & Fuel Filter Differential Pressure SwitchSystem: Fuel SystemPossible Defects:
Proper Installation, loose connections, damaged tubings.
![Page 41: T900 Pre Test Inspection Booklet](https://reader036.vdocuments.mx/reader036/viewer/2022062312/5535edcf4a7959ca198b47d7/html5/thumbnails/41.jpg)
X
Location: Fan Case 11,2 o’clock positionSystem: Fuel & Hydraulic SystemPossible Defects:
No blanking
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X
Location: Fan Case 11,2 o’clock positionSystem: Fuel & Hydraulic SystemPossible Defects:
No blanking
![Page 43: T900 Pre Test Inspection Booklet](https://reader036.vdocuments.mx/reader036/viewer/2022062312/5535edcf4a7959ca198b47d7/html5/thumbnails/43.jpg)
Location: Oil TankSystem: Oil systemPossible Defects:
Damage on electrical harnesses and tubings, loose electrical connections.Wire locking on MCD & Oil Filler Cap as indicated by green arrows.
![Page 44: T900 Pre Test Inspection Booklet](https://reader036.vdocuments.mx/reader036/viewer/2022062312/5535edcf4a7959ca198b47d7/html5/thumbnails/44.jpg)
Location: On top of Module 41System: MechanicalPossible Defects:
Two tubes are not blanked and one tube chafe another
![Page 45: T900 Pre Test Inspection Booklet](https://reader036.vdocuments.mx/reader036/viewer/2022062312/5535edcf4a7959ca198b47d7/html5/thumbnails/45.jpg)
Location: Module 41 at 4 o’clockSystem: MechanicalPossible Defects:
Boroscope port not tightened.
![Page 46: T900 Pre Test Inspection Booklet](https://reader036.vdocuments.mx/reader036/viewer/2022062312/5535edcf4a7959ca198b47d7/html5/thumbnails/46.jpg)
Module 52 Module 41
Location: Module 52 10 o’clock position & Module 41 3 o’clock position
System: MechanicalPossible Defects:
Tube clip not tightened on raceway.Harness clip not tightened.
![Page 47: T900 Pre Test Inspection Booklet](https://reader036.vdocuments.mx/reader036/viewer/2022062312/5535edcf4a7959ca198b47d7/html5/thumbnails/47.jpg)
Location: Module 32 four o’clock position.
System: MechanicalPossible Defects:
Module 32 level arm bolt loose.
![Page 48: T900 Pre Test Inspection Booklet](https://reader036.vdocuments.mx/reader036/viewer/2022062312/5535edcf4a7959ca198b47d7/html5/thumbnails/48.jpg)
Location: Engine MountsSystem: Non ModularPossible Defects:
Potential Defects found on Engine Mounts. Dents.
![Page 49: T900 Pre Test Inspection Booklet](https://reader036.vdocuments.mx/reader036/viewer/2022062312/5535edcf4a7959ca198b47d7/html5/thumbnails/49.jpg)
Incorrect installation causing
Fuel tube to foul another fuel tube
91027 with straight joint incorrectly
connected to FCOC
Location: Trent 900 LP Fuel Tube (Fuel Pump to FOHE) InstallationSystem: Mechanical
Possible Defects:
Wrong Installation / Fuel tube chaffing
![Page 50: T900 Pre Test Inspection Booklet](https://reader036.vdocuments.mx/reader036/viewer/2022062312/5535edcf4a7959ca198b47d7/html5/thumbnails/50.jpg)
Location: Trent 900 LP Fuel Tube (Fuel Pump to FOHE) InstallationSystem: Mechanical
Possible Defects:
Wrong Installation / Fuel tube chaffing
![Page 51: T900 Pre Test Inspection Booklet](https://reader036.vdocuments.mx/reader036/viewer/2022062312/5535edcf4a7959ca198b47d7/html5/thumbnails/51.jpg)
Location: P160 Tube Assembly at 12 o'clock positionSystem: Mechanical
Possible Defects:
No Blanking. (Tube found not connected post engine delivery to customer)