TASK 72-00-00-200-009 Engine General - Examine (Borescope) The No. 4 Bearing Scavenge Tube As Required By Fault Isolation, Inspection-009

DMC:V2500-A0-72-00-0000-01A-312A-B|Issue No:001.00|Issue Date:2014-05-01

Export Control

EAR Export Classification: Not subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3), except for the following Service Bulletins which are currently published as EAR Export Classification 9E991: SBE70-0992, SBE72-0483, SBE72-0580, SBE72-0588, SBE72-0640, SBE73-0209, SBE80-0024 and SBE80-0025.

Copyright

© IAE International Aero Engines AG (2001, 2014 - 2021) The information contained in this document is the property of © IAE International Aero Engines AG and may not be copied or used for any purpose other than that for which it is supplied without the express written authority of © IAE International Aero Engines AG. (This does not preclude use by engine and aircraft operators for normal instructional, maintenance or overhaul purposes.).

Applicability

All

Common Information

TASK 72-00-00-200-009 Engine General - Examine (Borescope) The No. 4 Bearing Scavenge Tube As Required By Fault Isolation, Inspection-009

General

For standard torque data and procedures refer to the SPM TASK 70-41-00-400-501 and SPM TASK 70-41-02-400-501.

Lubricate all threads and abutment faces of nuts and bolts with CoMat 10-039 ENGINE OIL, unless other lubricants are referred to in the procedure.

For lockwire data and procedures, refer to SPM TASK 70-42-05-400-501.

NOTE

To identify the consumable materials refer to the PCI.

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NameManufacturerPart Number / IdentificationQuantityRemark
Flexible boroscope (6 or 8 mm)LOCALFlexible Boroscope
Rigid boroscope (6 or 8 mm)LOCALBoroscope
IAE 1R18001 Wrench0AM53IAE 1R18001
IAE 1R18003 Wrench0AM53IAE 1R18003

Consumables, Materials and Expendables

NameManufacturerPart Number / IdentificationQuantityRemark
CoMat 02-126 LOCKWIRELOCALCoMat 02-126
CoMat 10-039 ENGINE OILLOCALCoMat 10-039

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-00-00-050-058 Disconnect the PS3 Cooling Air Tubes

    1. Refer to Figure.

    2. Remove the lockwire from the tube nuts at both ends of the tubes.

    3. Disconnect the tube nuts at the valve end with the IAE 1R18003 Wrench 1 off.

    4. Disconnect the tube nuts at the diffuser case adapter with the IAE 1R18001 Wrench 1 off.

    5. NOTE

      Complete removal of the PS3 cooling air tubes is not necessary to do the boroscope inspection procedure.

      Disconnect the clips from the brackets, but do not remove them from the tubes.

    6. Move the cooling air tubes so that you can do a boroscope inspection through the diffuser case adapter.

    2. SUBTASK 72-00-00-220-095 Do a Boroscope Inspection through the Diffuser Case Adapters

    1. Refer to Figure and Figure.

      2. Do a boroscope inspection of the No. 4 bearing scavenge tube heatshield with a Flexible boroscope (6 or 8 mm) 1 off.

      1. Examine (from each side) the visible area of the No. 4 bearing scavenge tube heatshield for cracks and material which is gone.

      2. Reject the part if there are cracks or if there is material which is gone from the heatshield.

      3. Do a boroscope inspection of the area that is outside the front No.4 bearing compartment with a Flexible boroscope (6 or 8 mm) 1 off.

      1. Examine the area for oil leakage, fire, cracks and damage to the compartment heatshield.

      2. Reject the part is there are signs of oil leakage, fire, mechanical damage or overheating. Reject the part if there are cracks or damage to the compartment heatshield.

    3. SUBTASK 72-00-00-450-057 Connect the PS3 Cooling Air Tubes

    1. Refer to Figure.

    2. Attach the tubes to the diffuser case adapter and the stage 10 to HP turbine air valve.

    3. Connect all the clips with nuts (if applicable), bolts and washers. Torque the bolts to 36 to 45 lbf.in (4 to 5 Nm).

    4. Use the IAE 1R18003 Wrench 1 off to torque the tubes nuts at the stage 10 to HP turbine air valve to 566 to 611 lbf.in (64 to 69 Nm).

    5. Use the IAE 1R18001 Wrench 1 off to torque the tube nuts at the diffuser case adapter to 398 to 434 lbf.in (45 to 49 Nm).

    6. Safety the tube nuts with CoMat 02-126 LOCKWIRE.

      .

    4. Figure: Disconnect and connect the PS3 cooling air tubes

    Disconnect and connect the PS3 cooling air tubes

    Figure: Boroscope installation transfer tube locations

    Boroscope installation transfer tube locations

    Figure: Inspection of the No.4 bearing scavenge tube assembly heatshields

    Inspection of the No.4 bearing scavenge tube assembly heatshields

Requirements After Job Completion

Follow-On Conditions

NONE
Manufacturer Code:0AM53
Enterprise Name:IAE INTERNATIONAL AERO ENGINES AG
BU Name:NULL
Building:SUITE 400
Street:628 HEBRON AVENUE
City:GLASTONBURY
State:CT
Zip Code:06033
Country:USA
Manufacturer Code:LOCAL
Enterprise Name:LOCALLY SUPPLIED
Manufacturer Code:K6835
Supply Number:CoMat 02-126
Type:sp01
Supply Short Name:CoMat 02-126 LOCKWIRE
Supply Name:CoMat 02-126 LOCKWIRE
Specification Groups:
Doc NumberType
DTD 189A, 0.028 TO 0.032 IN DIA
Suppliers:
ManufacturerRemarks
K6835
KB362
LOCAL
U06C8
Manufacturer Code:LOCAL
Supply Number:CoMat 10-039
Type:sp01
Supply Short Name:
Supply Name:CoMat 10-039 ENGINE OIL
Specification Groups:
Doc NumberType
DELETED
Suppliers:
ManufacturerRemarks
LOCAL
Manufacturer Code:LOCAL
Tool Number:Boroscope
Tool Name:Rigid boroscope (6 or 8 mm)
Manufacturer Code:LOCAL
Tool Number:Flexible Boroscope
Tool Name:Flexible boroscope (6 or 8 mm)
Manufacturer Code:0AM53
Tool Number:IAE 1R18001
Tool Name:IAE 1R18001 Wrench
Manufacturer Code:0AM53
Tool Number:IAE 1R18003
Tool Name:IAE 1R18003 Wrench