TASK 72-42-20-200-101 No. 4 Bearing Pressure Oil Tube - Examine, Inspection-001

DMC:V2500-A0-72-42-2011-00A-310A-C|Issue No:001.00|Issue Date:2013-11-01

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 72-42-20-200-101 No. 4 Bearing Pressure Oil Tube - Examine, Inspection-001

Effectivity

FIG/ITEM

PART NO.

01-060

2A0835-01

01-060

2A2493-01

01-060

2A4256-01

General

This TASK gives the procedure for the inspection of the No. 4 bearing pressure tube. For the other part of the No. 4 bearing compartment tubes, refer to Inspection-000 TASK 72-42-20-200-100.

Fig/item numbers in parentheses in the procedure agree with those used in the IPC.

The policy that is necessary for inspection is given in the SPM TASK 70-20-01-200-501.

All the parts must be cleaned before any part is examined. Refer to SPM TASK 70-10-00-100-501.

All the parts must be visually examined for damage, corrosion and wear. Any defects that are not identified in the procedure must be referred to IAE.

The procedure for those parts which must have a crack test is given in Step or Step Do the test before the part is visually examined.

Do not discard any part until you are sure there are no repairs available. Refer to the instructions in Repair before a discarded part is used again or oversize parts are installed.

Parts which should be discarded can be held although no repair is available. The repair of a discarded part could be shown to be necessary at a later date.

All parts must be examined to make sure that all the repairs have been completed satisfactorily.

Practices and processes referred to in the procedure by the TASK/SUBTASK number are in the SPM.

References

Refer to the SPM for data on these items:

Definitions of Damage, SPM TASK 70-02-02-350-501.

Inspection of Parts, SPM TASK 70-20-01-200-501.

Some data on these items is contained in this TASK. For more data on these items refer to the SPM:

Method of Testing for Crack Indications

Chemical Processes

Surface Protection

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NameManufacturerPart Number / IdentificationQuantityRemark
IAE 2P16243 Pressure test adapter0AM53IAE 2P162431 off
IAE 2P16244 Pressure test plug0AM53IAE 2P162441 off

Consumables, Materials and Expendables

NONE

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-42-20-230-051-001 Examine the No. 4 Bearing Pressure Tube (01-060) for Cracks

    1. Clean the Part. Refer to the Cleaning-000 TASK 72-42-20-100-100.

      2. Do the test for cracks on the part that is given below. Use the applicable penetrant procedures. Carefully examine the heat shields.

        1. No. 4 bearing pressure tube. Refer to SPM TASK 70-23-03-230-501.

          1. Cracked

          1. Repair, VRS3728 (Repair-023) TASK 72-42-20-300-023

    2. SUBTASK 72-42-20-230-051-002 Examine the No. 4 Bearing Pressure Tube (01-060) for Cracks

    1. Clean the Part. Refer to the Cleaning-000 TASK 72-42-20-100-100.

      2. Do the test for cracks on the part that is given below. Use the applicable penetrant procedures. Carefully examine the heat shields.

        1. No. 4 bearing pressure tube. Refer to SPM TASK 70-23-08-230-501 (Dip or spray).

          1. Cracked

          1. Repair, VRS3728 (Repair-023) TASK 72-42-20-300-023

    3. SUBTASK 72-42-20-220-051-A00 Examine the No. 4 Bearing Pressure Tube (01-060) for Dents, Nicks and Wear on the Heat Shields and Surface

    1. Refer to Figure or Figure.

      2. Examine the tube at locations 1, 2, 3 and 6 for dents, nicks, looseness, and wear on the heat shields and surface.

        1. Dents

          1. As much as 0.040 in. (1.02 mm) in depth. Dents must be smooth

          1. Accept

          2. Other than Step.

          1. Repair, VRS3021 (Repair-001) TASK 72-42-20-300-001 or Repair, VRS3728 (Repair-023) TASK 72-42-20-300-023.

        2. Nicks or wear

          1. As much as 0.004 in. (0.10 mm) in depth. Nicks must be smooth.

          1. Repair, VRS3021 (Repair-001) TASK 72-42-20-300-001.

          2. Other than Step.

          1. Repair, VRS3728 (Repair-023) TASK 72-42-20-300-023.

        3. Looseness (with a minimum of force applied, you can move heatshield axially more than 0.250 in. (6.35 mm)).

          1. Not loose

          1. Accept

          2. Loose

          1. Repair, VRS3728 (Repair-023) TASK 72-42-20-300-023.

    4. SUBTASK 72-42-20-220-052 Examine the No. 4 Bearing Pressure Tube (01-060) for the Diameter of the Middle Seal

    1. Refer to Figure or Figure.

      2. Examine the tube at location 2066 for the diameter of the middle seal.

        1. Diameter

          1. If the diameter is between 0.7415 and 0.7455 in. (18.834 and 18.936 mm).

          1. Accept

          2. Other than Step.

          1. Repair, VRS3690 (Repair-020) TASK 72-42-20-300-020 or Repair, VRS3728 (Repair-023) TASK 72-42-20-300-023.

        2. Examine the tube for wear in the areas given in A and B in the figures.

          1. If dimensions are in the limits given

          1. Accept

          2. Other than Step.

          1. Repair, VRS3690 (Repair-020) TASK 72-42-20-300-020 or Repair, VRS3728 (Repair-023) TASK 72-42-20-300-023.

    5. SUBTASK 72-42-20-220-151 Examine the No. 4 Bearing Pressure Tube (01-060) for Groove Width Wear of the Middle Seal

    1. Refer to Figure.

      2. Examine the tube at location 2065 for the groove width of the middle seal.

        1. Groove width

          1. If the groove width is between 0.064 and 0.066 in. (1.63 and 1.68 mm).

          1. Accept

          2. Other than Step.

          1. Repair VRS3577 (Repair-024) TASK 72-42-20-300-024.

    6. SUBTASK 72-42-20-220-113-A00 Examine the No. 4 Bearing Pressure Tube (PN 2A0835-01) (01-060) for Damage on the Round End Connector and Seat

    1. Refer to Figure.

      2. Examine the tube at location 4 for damage on the round end connector and seat.

        1. High material

        1. Reject

    7. SUBTASK 72-42-20-220-113-B00 Examine the No. 4 Bearing Pressure Tube (PN 2A2493-01) (01-060) and (PN 2A4256-01) (01-060) for Damage on the Round End Connector and Seat

    1. Refer to Figure.

      2. Examine the tube at location 3 for damage on the round end connector and seat.

        1. High material

        1. Repair, VRS3728 (Repair-023) TASK 72-42-20-300-023.

    8. SUBTASK 72-42-20-220-114-A00 Examine the No. 4 Bearing Pressure Tube (PN 2A0835-01) (01-060) for Wear on the Outer Connector

    1. Refer to Figure.

      2. Examine the tube at location 5 for Diameter X

        1. If Diameter X is between 0.634 and 0.641 in. (16.104 and 16.281 mm).

        1. Accept

        2. Other than Step.

        1. Repair, VRS3690 (Repair-020) TASK 72-42-20-300-020.

      3. Examine the tube for wear in the areas given in views C and D

        1. If the dimensions are in the limits given

        1. Accept

        2. Other than Step.

        1. Repair, VRS3690 (Repair-020) TASK 72-42-20-300-020.

    9. SUBTASK 72-42-20-220-114-B00 Examine the No. 4 Bearing Pressure Tube (PN 2A2493-01) (01-060) and (PN 2A4256-01) (01-060) for Wear on the Outer Connector

    1. Refer to Figure.

      2. Examine the tube at location 4 for Diameter X

        1. If Diameter X is between 0.634 and 0.641 in. (16.10 and 16.28 mm).

        1. Accept

        2. Other than Step.

        1. Repair, VRS3690 (Repair-020) TASK 72-42-20-300-020 or Repair, VRS3728 (Repair-023) TASK 72-42-20-300-023.

      3. Examine the tube for wear in the areas given in views C and D.

        1. If the dimensions are in the limits given

        1. Accept

        2. Other than Step.

        1. Repair, VRS3690 (Repair-020) TASK 72-42-20-300-020 or Repair, VRS3728 (Repair-023) TASK 72-42-20-300-023.

    10. SUBTASK 72-42-20-220-152-A00 Examine the No. 4 Bearing Pressure Tube (PN 2A0835-01) (01-060) for Groove Width Wear on the Outer Connector

    1. Refer to Figure.

      2. Examine the tube at location 2079 for the groove width wear of the outer connector.

        1. Groove width

          1. If the groove width is between 0.0645 and 0.0665 in. (1.638 and 1,.689 mm).

          1. Accept

          2. Other than Step.

          1. Repair VRS3577 (Repair-024) TASK 72-42-20-300-024.

    11. SUBTASK 72-42-20-220-152-B00 Examine the No. 4 Bearing Pressure Tube (PN 2A2493-01) (01-060) and (PN 2A4256-01) (01-060) for Groove Width Wear on the Outer Connector

    1. Refer to Figure.

      2. Examine the tube at location 2079 for the groove width wear of the outer connector.

        1. Groove width

          1. If the groove width is between 0.0645 and 0.0665 in. (1.638 and 1.689 mm).

          1. Accept

          2. Other than Step.

          1. Repair VRS3577 (Repair-024) TASK 72-42-20-300-024.

    12. SUBTASK 72-42-20-220-053 Examine the No. 4 Bearing Pressure Tube (01-060) for Leaks

    1. Install IAE 2P16243 Pressure test adapter 1 off onto the tube connecter. Attach standard pressure test equipment to the adapter.

    2. Install IAE 2P16244 Pressure test plug 1 off onto the opposite end of the tube.

      3. Do a pressure test with oil at 225 to 246 psig (1551.32 to 1696.11 kPa).

        1. Leaks

        1. Repair, VRS3728 (Repair-023) TASK 72-42-20-300-023.

    4. Remove the pressure test plug and the pressure test adapter from the ends of the tube.

    13. Figure: No. 4 Bearing Pressure Tube (PN 2A0835-01) Inspection Locations

    No. 4 Bearing Pressure Tube (PN 2A0835-01) Inspection Locations

    Figure: No. 4 Bearing Pressure Tube (PN 2A2493-01 and 2A4256-01) Inspection Locations

    No. 4 Bearing Pressure Tube (PN 2A2493-01 and 2A4256-01) Inspection Locations

    Figure: No. 4 Bearing Pressure Tube (PN 2A2493-01 and 2A4256-01) Inspection Locations

    No. 4 Bearing Pressure Tube (PN 2A2493-01 and 2A4256-01) Inspection Locations

    Figure: No. 4 Bearing Pressure Tube (PN 2A0835-01) Inspection Locations

    No. 4 Bearing Pressure Tube (PN 2A0835-01) Inspection Locations

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:0AM53
Tool Number:IAE 2P16243
Tool Name:IAE 2P16243 Pressure test adapter
Manufacturer Code:0AM53
Tool Number:IAE 2P16244
Tool Name:IAE 2P16244 Pressure test plug