TASK 72-00-41-200-001 HPC Assembly - Examine, Inspection-001

DMC:V2500-A0-72-00-4100-00A-300A-B|Issue No:006.00|Issue Date:2020-05-01

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 72-00-41-200-001 HPC Assembly - Examine, Inspection-001

General

This TASK gives the procedure for the inspection of HP compressor cases and rotor assembly below soft time as given in the Engine Management Program. Where applicable the inspections are done as well as those given in the interface inspections. Refer to TASK 72-00-40-220-001, TASK 72-00-40-220-002-A00 or TASK 72-00-40-220-002-B00 and HPC rotor inspection (TASK 72-41-10-200-001-A00 and TASK 72-41-10-200-001-B00) to make sure the module can be put back into service to prevent further module disassembly.

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

Visually examine the module for any indication of "In Service" defects before cleaning. If any defects are found, refer to IAE Technical Services.

Visually examine for cracks at modular level given in this procedure. The part must be cleaned, before this visual inspection.

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

References

Refer to SPM for data on these items:

Definition of Damage, SPM TASK 70-02-02-350-501,

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

NOTE

The word "Reject" is used after an interface/SP50 inspection statement to show that a higher level inspection and possible repair to the damaged part is necessary if the part is rejected, refer to the respective inspection/check. Do the higher-level inspection procedure as found in the applicable chapter/section/subject of this manual the damaged part(s).

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NONE

Consumables, Materials and Expendables

NONE

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-00-41-110-001 Remove the Grease

      1. Remove the grease by aqueous cleaning.

      1. Refer to SPM TASK 70-11-03-300-503.

    2. SUBTASK 72-00-41-220-001 Examine the Curvic Coupling Bolt

      1. Examine the curvic coupling bolt.

    3. SUBTASK 72-00-41-220-002 Examine the HP Compressor Front Cases Split Line Faces at Location 5

    1. Refer to Figure.

      2. Scored.

      1. Reject.

      3. Scratched or Galled.

        1. Less than 0.002 in. (0.05 mm) in depth.

        1. Accept

        2. More than Step.

        1. Reject.

    4. SUBTASK 72-00-41-220-038 Examine the Rotor Path Ring Slot Faces BD and Rotor Path Ring Slot AF

    1. Refer to Figure, Figure, Figure and Figure.

      2. V2500-A1: Pre SBE 72-0027 Stages 3, 4, 5 and 6 Rotor Path Ring Slots AF.

        1. Wear marks, scored, scratched and fretted.

          1. Not more than 0.026 in. (0.65 mm) in depth over a localized arc of not more than 4.724 in. (120.00 mm) and not more than three positions in each half casing.

          1. Accept.

          2. More than Step.

          1. Reject.

      3. V2500-A1: Pre SBE 72-0027 Stages 3, 4, 5 and 6 Rotor Path Ring Slot Faces BD.

        1. Wear marks, scored, scratched and fretted.

          1. Not more than 0.053 in. (1.35 mm) in depth over a localized arc of not more than 0.472 in. (12.00 mm) and not more than three positions in each half casing.

          1. Accept.

          2. More than Step.

          1. Reject.

      4. V2500-A1: SBE 72-0027 Stages 5 and 6 Rotor Path Ring Slots AF.

        1. Wear marks, scored, scratched and fretted.

          1. Not more than 0.026 in. (0.65 mm) in depth over a localized arc of not more than 4.724 in. (120.00 mm) and not more than three positions in each half casing.

          1. Accept.

          2. More than Step.

          1. Reject.

      5. V2500-A1: SBE 72-0027 Stages 5 and 6 Rotor Path Ring Slot Faces BD.

        1. Wear marks, scored, scratched and fretted.

          1. Not more than 0.053 in. (1.35 mm) in depth over a localized arc of not more than 0.472 in. (12.00 mm) and not more than three positions in each half casing.

          1. Accept.

          2. More than Step.

          1. Reject.

      6. V2500-A5: Stages 4, 5 and 6 Rotor Path Ring Slots AF.

        1. Wear marks, scored, scratched and fretted.

          1. Not more than 0.026 in. (0.65 mm) in depth over a localized arc of not more than 4.724 in. (120.00 mm) and not more than three positions in each half casing.

          1. Accept.

          2. More than Step.

          1. Reject.

      7. V2500-A5: Stages 4, 5 and 6 Rotor Path Ring Slot Faces BD.

        1. Wear marks, scored, scratched and fretted.

          1. Not more than 0.053 in. (1 35 mm) in depth over a localized arc of not more than 0.472 in. (12.00 mm) and not more than three positions in each half casing.

          1. Accept.

        2. More than Step.

        1. Reject.

    5. SUBTASK 72-00-41-220-003 Examine the HP Compressor Front Cases Split Line Bolt Holes at Location 6

    1. Refer to Figure.

      2. Scored or with burred edges.

        1. Less than 0.005 in. (0.13 mm) in depth

        1. Remove the damage. Refer to SPM TASK 70-35-03-300-501

        2. More than Step

        1. Reject

    6. SUBTASK 72-00-41-220-004 Examine the HP Compressor Front Cases Front and Rear Flanges at Location 7

    1. Refer to Figure.

      2. Scored, Scratched or Galled.

        1. Less than 0.002 in. (0.05 mm) in depth

        1. Accept

        2. More Step and less than 0.005 in. (0.13 mm)

        1. Remove the damage. Refer to SPM TASK 70-35-03-300-501.

        3. More than Step

        1. Reject

    7. SUBTASK 72-00-41-220-005 Examine the HP Compressor Front Cases Location Bolt Holes at Location 8

    1. Refer to Figure.

      2. Scored or with burred edges.

        1. Less than 0.005 in. (0.13 mm)

        1. Remove the damage. Refer to SPM TASK 70-35-03-300-501

        2. More than Step

        1. Reject

    8. SUBTASK 72-00-41-220-006 Examine the HP Compressor Front Cases Screw Thread Inserts

      1. Broken, loose, worn, crossed thread or stripped thread

      1. Repair, VRS6521 TASK 72-00-41-300-002 (REPAIR-002)

    9. SUBTASK 72-00-41-220-007 Examine the HP Compressor Front Cases Blank Access, Stage 3 and 5 Borescope Access at Locations 9, 10 and 15

    1. Refer to Figure.

      2. Scored or scratched.

        1. Less than 0.002 in. (0.05 mm) in depth

        1. Accept

        2. More than in Step and less than 0.005 in. (0.13 mm)

        1. Remove the damage. Refer to SPM TASK 70-35-03-300-501

        3. More than in Step

        1. Reject

    10. SUBTASK 72-00-41-220-008 Examine the Rear Flange of the HP Compressor Rear Outer Case at Location 1

    1. Refer to Figure, Figure and Figure.

    2. V2500-A1: Examine the rear flange of HP compressor rear outer case at location 1, refer to TASK 72-00-40-220-002-A00, SUBTASK 72-00-40-220-058.

    3. V2500-A5: Examine the rear flange of HP compressor rear outer case at location 1, refer to TASK 72-00-40-220-002-B00, SUBTASK 72-00-40-220-117.

    11. SUBTASK 72-00-41-220-009 A5 TASK: Examine Stage 6 Segment Anti-Rotation Stop Pin at Location 19

    1. Refer to Figure.

      2. Replace the anti-rotation stop pin

      1. Repair, VRS6624 TASK 72-41-31-300-026 (REPAIR-026)

    12. SUBTASK 72-00-41-220-010 Visually Examine the VIGV at Location 2

    1. Refer to Figure and Figure.

    2. Visually examine the VIGV at location 2, refer to TASK 72-00-40-220-001, SUBTASK 72-00-40-220-052.

    13. SUBTASK 72-00-41-220-011 Visually Examine the VIGV Inner Shroud Seal Diameter at Location 3

    1. Refer to Figure and Figure.

    2. Visually examine the VIGV inner shroud seal diameter at location 3, refer to TASK 72-00-40-220-001, SUBTASK 72-00-40-220-053.

    14. SUBTASK 72-00-41-220-039 Examine the Stages 3, 4 and 5 Half Ring Seal Linings at Location X

    1. Refer to Figure.

      2. Grooved (if the parent metal is not exposed)

      1. Accept

      3. Abradable detachment

      1. Reject

    15. SUBTASK 72-00-41-220-040 Examine the VIGV and VSV Stages 3, 4 and 5 for Damaged or Missing Inner Bushings

      1. Missing or damaged bushing

      1. Reject

    16. SUBTASK 72-00-41-220-012 Visually Examine the VIGV and the VSV Mechanism at Location 7

    1. Refer to Figure and Figure.

    2. Visually examine the VIGV and the VSV mechanism at location 7, refer to TASK 72-00-40-220-001, SUBTASK 72-00-40-220-057.

    17. SUBTASK 72-00-41-220-041 Examine the Stage 3 Rotor Path Lining at Location Y

    1. Refer to Figure and Figure.

      2. Loss of coating (chipping, detachment and flaking) in location 1.

        1. Not more than 0.100 in. (2.54 mm) in width and any length at the split line if there is no loss of adhesion to the backing material and the accumulative loss of coating per stage is not more than 0.38 sq in. (250 0 sq mm)

        1. Make the edges smooth. Refer to SPM TASK 70-35-03-300-501

        2. More than in Step

        1. Reject

      3. Loss of coating (chipping, detachment and flaking) in locations 2 and 3

      1. Reject

      4. Scored or gouged.

        1. Not more than 0.0118 in. (0.300 mm) in depth

        1. Accept

        2. Between 0.0118 in. and 0.0197 in. (0.300 mm and 0.500 mm) in depth, not more than 1.969 in. (50.00 mm) in length and 0.197 in. (5.00 mm) in width with not more than five scores or gouges per liner

        1. Accept

        3. Between 0.0197 in. and 0.0276 in. (0.500 mm and 0.700 mm) in depth, not more than 0.787 in. (20.00 mm) in length and 0.197 in. (5.00 mm) in width with not more than five scores or gouges per liner

        1. Accept

        4. Between 0.0276 in. and 0.0394 in. (0.700 mm and 1.000 mm) in depth, not more than 0.394 in. (10.00 mm) in length and 0.118 in. (3.00 mm) in width and not more than two scores or gouges per liner

        1. Accept

        5. More than in Step, Step, Step or Step

        1. Reject

        6. If parent metal is exposed

        1. Reject

      5. Craze cracks (if there is no detachment of coating)

      1. Accept

      6. Wear.

        1. If you cannot see the parent metal

        1. Accept

    18. SUBTASK 72-00-41-220-070 Examine the Stage 4 and Stage 5 Rotor Path Lining Segments at Location Z

    1. Refer to Figure and Figure.

      2. Loss of coating (chipping, detachment and flaking) in location 1

        1. Not more than 0.100 in. (2.54 mm) in width and any length at the split line if there is no loss of adhesion to the backing material and the accumulative loss of coating per stage is not more than 0.38 sq in. (250.0 sq mm)

        1. Make the edges smooth. Refer to SPM TASK 70-35-03-300-501

        2. More than in Step

        1. Reject

      3. Loss of coating (chipping, detachment and flaking) in locations 2 and 3

      1. Reject

      4. Scored or gouged

        1. Not more than 0.010 in. (0.25 mm) in depth

        1. Accept

        2. More than in Step

        1. Reject

      5. If parent material is exposed

      1. Reject

      6. Craze cracks (if there is no detachment of coating)

      1. Accept

      7. Worn

        1. If you cannot see the parent metal

        1. Accept

    19. SUBTASK 72-00-41-220-042 Examine the Stage 6 Rotor Path Lining Segments

    1. Refer to Figure and Figure.

      2. Location 1.

        1. Scored.

          1. Not more than 0.010 in. (0.25 mm) in depth

          1. Accept

          2. More than in Step

          1. Reject

        2. Gouges or impact damage down to base material

        1. Reject

        3. Loss of top coat.

          1. No cracks

          1. Accept

          2. Cracks

          1. Reject

      3. Location 2.

        1. Scored.

          1. Not more than 0.010 in. (0.25 mm) in depth

          1. Accept

          2. More than in Step

          1. Reject

        2. Gouges or impact damage down to base material

        1. Reject

        3. Loss of top coat

        1. Reject

      4. Location 3.

        1. Scored.

          1. Not more than 0.010 in. (0.25 mm) in depth

          1. Accept

          2. More than in Step

          1. Reject

        2. Gouges or impact damage down to base material

        1. Reject

        3. Loss of top coat.

          1. With cracks and less than 5 percent loss

          1. Accept

          2. With cracks and more than 5 percent loss

          1. Reject

      5. Craze cracks

      1. Reject

    20. SUBTASK 72-00-41-220-043 Examine the Variable Inlet Guide Vanes and VSVs Inner Pivot Spindle at Location 1205 ((72-00-41,01-500) and (72-00-41,01-600))

    1. Refer to Figure.

      2. Worn.

        1. Diameter W minimum of 0.2644 in. (6.716 mm)

        1. Accept

        2. Less than in Step

        1. Reject

    21. SUBTASK 72-00-41-220-044 Examine the Variable Inlet Guide Vanes

    1. Refer to Figure.

      2. Zone A.

        1. Cracked or torn

        1. Reject

        2. Nicked

        1. Reject

        3. Dented (not related to cracks, nicks or tears)

        1. Accept

      3. Zone B.

        1. Cracked

        1. Reject

        2. Nicked or torn.

          1. Not more than 0.060 in. (1.52 mm) in depth

          1. Accept

          2. More than in Step and in the limits of VRS6522

          1. Repair, VRS6522 TASK 72-00-41-300-003 (REPAIR-003)

          3. More than in Step and Step

          1. Reject

        3. Dented (not related to cracks, nicks or tears)

        1. Accept

        4. Light erosion not affecting leading edge profile (not related to cracks, nicks or tears)

        1. Accept

      4. Zone C.

        1. Cracked or torn

        1. Reject

        2. Nicked

        1. Reject

        3. Dented (not related to cracks, nicks or tears)

        1. Reject

      5. All areas.

        1. Deposits.

          1. Light deposits of abradable or atmospheric contamination

          1. Accept

      6. Quantity.

        1. Not more than eight vanes with nicks or tears in the limits above

        1. Accept

        2. More than eight vanes with nicks or tears in the limits above

        1. Repair, VRS6522 TASK 72-00-41-300-003 (REPAIR-003)

    22. SUBTASK 72-00-41-220-045 Examine the Stage 3 HP Compressor VSVs

    1. Refer to Figure.

      2. Zone A.

        1. Cracked

        1. Reject

        2. Nicked or torn.

          1. Not more than 0.060 in. (1.52 mm) in depth

          1. Accept

          2. More than in Step and in the limits of VRS6522

          1. Repair, VRS6522 TASK 72-00-41-300-003 (REPAIR-003)

          3. More than in Step and Step

          1. Reject

        3. Dented (not related to cracks, nicks or tears)

        1. Accept

      3. Zone B.

        1. Cracked

        1. Reject

        2. Nicked or torn.

          1. Not more than 0.030 in. (0.76 mm) in depth

          1. Accept

          2. More than in Step and in the limits of VRS6522

          1. Repair, VRS6522 TASK 72-00-41-300-003 (REPAIR-003)

          3. More than in Step and Step

          1. Reject

        3. Dented (not related to cracks, nicks or tears)

        1. Accept

        4. Light erosion not affecting leading edge profile (not related to cracks, nicks or tears)

        1. Accept

      4. Zone C.

        1. Cracked or torn

        1. Reject

        2. Nicked

        1. Reject

        3. Dented (not related to cracks, nicks or tears)

        1. Reject

      5. All areas.

        1. Deposits.

          1. Light deposits of abradable or atmospheric contamination

          1. Accept

      6. Quantity.

        1. Not more than four vanes with nicks or tears in the limits above

        1. Accept

        2. More than four vanes with nicks or tears in the limits above

        1. Repair, VRS6522 TASK 72-00-41-300-003 (REPAIR-003)

    23. SUBTASK 72-00-41-220-046 Examine the Stage 4 HP Compressor VSVs

    1. Refer to Figure.

      2. Zone A.

        1. Cracked

        1. Reject

        2. Nicked or torn.

          1. Not more than 0.060 in. (1.52 mm) in depth

          1. Accept

          2. More than in Step and in the limits of VRS6522

          1. Repair, VRS6522 TASK 72-00-41-300-003 (REPAIR-003)

          3. More than in Step and Step

          1. Reject

        3. Dents

        1. Reject

      3. Zone B.

        1. Cracked

        1. Reject

        2. Nicked or torn.

          1. Not more than 0.030 in. (0.76 mm) in depth

          1. Accept

          2. More than in Step and in the limits of VRS6522

          1. Repair, VRS6522 TASK 72-00-41-300-003 (REPAIR-003)

          3. More than in Step and Step

          1. Reject

        3. Dented (not related to cracks, nicks or tears)

        1. Accept

        4. Light erosion not affecting leading edge profile (not related to cracks, nicks or tears)

        1. Accept

      4. Zone C.

        1. Cracked or torn

        1. Reject

        2. Nicked

        1. Reject

        3. Dented (not related to cracks, nicks or tears)

        1. Reject

      5. All areas.

        1. Deposits.

          1. Light deposits of abradable or atmospheric contamination

          1. Accept

      6. Quantity.

        1. Not more than five vanes with nicks or tears in the limits above

        1. Accept

        2. More than five vanes with nicks or tears in the limits above

        1. Repair, VRS6522 TASK 72-00-41-300-003 (REPAIR-003)

    24. SUBTASK 72-00-41-220-066 Examine the Stage 5 HP Compressor VSVs

    1. Refer to Figure.

      2. Zone A.

        1. Cracked or torn

        1. Reject

        2. Nicked

        1. Reject

        3. Dents

        1. Accept

      3. Zone B.

        1. Cracked

        1. Reject

        2. Dented (not related to cracks, nicks or tears)

        1. Accept

        3. Nicked or torn.

          1. Not more than 0.015 in. (0.38 mm) in depth

          1. Accept

          2. More than in Step and in the limits of VRS6522

          1. Repair, VRS6522 TASK 72-00-41-300-003 (REPAIR-003)

          3. More than in Step and Step

          1. Reject

        4. Light erosion not affecting leading edge profile (not related to cracks, nicks or tears)

        1. Accept

      4. Zone C.

        1. Cracked or torn

        1. Reject

        2. Nicked

        1. Reject

        3. Dented (not related to cracks, nicks or tears)

        1. Reject

      5. All areas.

        1. Deposits.

          1. Light deposits of abradable or atmospheric contamination

          1. Accept

      6. Quantity.

        1. Not more than 21 vanes with nicks or tears in the limits above

        1. Accept

        2. More than 21 vanes with nicks or tears in the limits above

        1. Repair, VRS6522 TASK 72-00-41-300-003 (REPAIR-003)

    25. SUBTASK 72-00-41-220-047 Examine the Stage 6 HP Compressor VSVs or Fix Vanes

    1. Refer to Figure and Figure.

      2. Zone A.

        1. Cracked

        1. Reject

        2. Nicked or torn.

          1. Not more than 0.030 in. (0.76 mm) in depth

          1. Accept

          2. More than in Step and in the limits of VRS6522

          1. Repair, VRS6522 TASK 72-00-41-300-003 (REPAIR-003)

          3. More than in Step and Step

          1. Reject

        3. Dents

        1. Reject

      3. Zone B.

        1. Cracked

        1. Reject

        2. Nicked or torn.

          1. Not more than 0.015 in. (0.38 mm) in depth

          1. Accept

          2. More than in Step and in the limits of VRS6522

          1. Repair, VRS6522 TASK 72-00-41-300-003 (REPAIR-003)

          3. More than in Step and Step

          1. Reject

        3. Dented (not related to cracks, nicks or tears)

        1. Accept

        4. Light erosion not affecting leading edge profile (not related to cracks, nicks or tears)

        1. Accept

      4. Zone C.

        1. Cracked or torn

        1. Reject

        2. Nicked

        1. Reject

        3. Dented (not related to cracks, nicks or tears)

        1. Reject

      5. Stage 6 vanes tips.

        1. Missing piece

        1. Reject

        2. Discoloration (related to tip rub)

        1. Accept

        3. Bent or curled

        1. Reject

        4. Tip rub (not related to cracks or tears)

        1. Accept

      6. All areas.

        1. Light deposits of abradable or atmospheric contamination

        1. Accept

      7. Quantity.

        1. Not more than 14 vanes with nicks or tears in the limits above

        1. Accept

        2. More than 14 vanes with nicks or tears in the limits above

        1. Repair, VRS6522 TASK 72-00-41-300-003 (REPAIR-003)

    26. SUBTASK 72-00-41-220-018 A1 TASK: Measure the Stage 6 VSV Bushing Wear

    1. Measure the stage 6 VSV bushing wear, refer to TASK 72-00-40-220-001, SUBTASK 72-00-40-220-137.

    27. SUBTASK 72-00-41-220-019Check the Variable Inlet Guide Vane (VIGV) And Variable Stator Vane (VSV) Actuating Mechanism

    1. V2500 A1: Refer to TASK 72-00-40-700-001-A00.

    2. V2500 A5: Refer to TASK 72-00-40-700-001-B00.

    28. SUBTASK 72-00-41-220-020 Visually Examine the Front Face of the Stage 3 HP Compressor Disk at Location 4

    1. Refer to Figure and Figure.

    2. Visually examine the front face of the stage 3 HP compressor disk at Location 4, refer to TASK 72-00-40-220-001, SUBTASK 72-00-40-220-054.

    29. SUBTASK 72-00-41-220-021 Visually Examine the Stage 3 HP Compressor Curvic Coupling Inner Seal Diameter at Location 5

    1. Refer to Figure and Figure.

    2. Visually examine the stage 3 HP compressor curvic coupling inner seal diameter at location 5, refer to TASK 72-00-40-220-001, SUBTASK 72-00-40-220-055.

    30. SUBTASK 72-00-41-220-022 Visually Examine the Stage 3 HP Compressor Curvic Coupling at Location 6

    1. Refer to Figure and Figure.

    2. Visually examine the stage 3 HP compressor curvic coupling at location 6, refer to TASK 72-00-40-220-001, SUBTASK 72-00-40-220-056.

    31. SUBTASK 72-00-41-220-023 Examine the HP Compressor Rotor Blades

    1. V2500 A1: Refer to TASK 72-41-10-200-001-A00.

    2. V2500 A5: Refer to TASK 72-41-10-200-001-B00.

    32. SUBTASK 72-00-41-220-024 Examine the Disk at the Stage 8, 9, 10 and 11 Ceramic Liners

    1. Refer to Figure.

    2. V2500 A1: Examine the disk at the stage 8, 9, 10, and 11 ceramic liners, refer to TASK 72-41-10-200-001-A00, SUBTASK 72-41-10-210-052 and SUBTASK 72-41-10-210-053.

    3. V2500 A5: Examine the disk at the stage 8, 9, 10, and 11 ceramic liners, refer to TASK 72-41-10-200-001-B00, SUBTASK 72-41-10-210-055.

    33. SUBTASK 72-00-41-220-025 Examine the Stage 12 HP Compressor Disk at Location 3

    1. Refer to Figure, Figure and Figure.

    2. V2500 A1: Examine the stage 12 HP compressor disk at location 3, refer to TASK 72-00-40-220-002-A00, SUBTASK 72-00-40-220-060.

    3. V2500 A5: Examine the stage 12 HP compressor disk at location 3, refer to TASK 72-00-40-220-002-B00, SUBTASK 72-00-40-220-119.

    34. SUBTASK 72-00-41-220-026 Examine the HP Compressor Shaft Rotating Seal Diameter at Location 4

    1. Refer to Figure, Figure and Figure.

      2. V2500 A1: Examine the HP compressor shaft rotating seal diameter at location 4:

      1. Pre SBE 72-0041: Refer to TASK 72-00-40-220-002-A00, SUBTASK 72-00-40-220-061-A00.

      2. Post SBE 72-0041: Refer to TASK 72-00-40-220-002-A00, SUBTASK 72-00-40-220-061-B00.

    3. V2500 A5: Examine the HP compressor shaft rotating seal diameter at location 4, refer to TASK 72-00-40-220-002-B00, SUBTASK 72-00-40-220-120.

    35. SUBTASK 72-00-41-220-027-A00 A1 Task: Examine the HP Compressor Rotating Air Seals at Locations 1401A, 1401B and 1401C

    1. Refer to Figure and Figure.

    2. Examine the HP compressor rotating air seals at locations 1401A, 1401B and 1401C, refer to TASK 72-00-40-220-002-A00, SUBTASK 72-00-40-220-062.

    3. V2500 A5: Examine the HP compressor rotating air seals at locations 1401A, 1401B and 1401C, refer to TASK 72-00-40-220-002-B00, SUBTASK 72-00-40-220-121.

    36. SUBTASK 72-00-41-220-027-B00 A5 Task: Examine the HP Compressor Rotating Air Seals at Locations 1401A, 1401B, 1401C and 1401D

    1. Refer to Figure.

    2. Examine the HP compressor rotating air seals at locations 1401A, 1401B, 1401C and 1401D, refer to TASK 72-00-40-220-002-B00, SUBTASK 72-00-40-220-121.

    37. SUBTASK 72-00-41-220-028 Examine the HP Compressor Shaft Location Diameter at Location 5

    1. Refer to Figure, Figure and Figure.

    2. V2500 A1: Examine the HP compressor shaft location diameter at location 5, refer to TASK 72-00-40-220-002-A00, SUBTASK 72-00-40-220-063.

    3. V2500 A5: Examine the HP compressor shaft location diameter at location 5, refer to TASK 72-00-40-220-002-B00, SUBTASK 72-00-40-220-122.

    38. SUBTASK 72-00-41-220-029 Examine the HP Compressor Shaft Bearing Location Diameter at Location 6

    1. Refer to Figure, Figure and Figure.

    2. V2500 A1: Examine the HP compressor shaft bearing location diameter at location 6, refer to TASK 72-00-40-220-002-A00, SUBTASK 72-00-40-220-064.

    3. V2500 A5: Examine the HP compressor shaft bearing location diameter at location 6, refer to TASK 72-00-40-220-002-B00, SUBTASK 72-00-40-220-123.

    39. SUBTASK 72-00-41-220-030 Examine the HP Compressor Shaft Snap Diameter at Location 7

    1. Refer to Figure, Figure and Figure.

    2. V2500 A1: Examine the HP compressor shaft snap diameter at location 7, refer to TASK 72-00-40-220-002-A00, SUBTASK 72-00-40-220-065.

    3. V2500 A5: Examine the HP compressor shaft snap diameter at location 7, refer to TASK 72-00-40-220-002-B00, SUBTASK 72-00-40-220-124.

    40. SUBTASK 72-00-41-220-031 Examine the HP Compressor Shaft Splines at Location 8

    1. Refer to Figure, Figure and Figure.

    2. V2500 A1: Examine the HP compressor shaft splines at location 8, refer to TASK 72-00-40-220-002-A00, SUBTASK 72-00-40-220-066.

    3. V2500 A5: Examine the HP compressor shaft splines at location 8, refer to TASK 72-00-40-220-002-B00, SUBTASK 72-00-40-220-125.

    41. SUBTASK 72-00-41-220-032 Examine the HP Compressor Shaft Snap Diameter at Location 9

    1. Refer to Figure, Figure and Figure.

    2. V2500 A1: Examine the HP compressor shaft snap diameter at location 9, refer to TASK 72-00-40-220-002-A00, SUBTASK 72-00-40-220-079.

    3. V2500 A5: Examine the HP compressor shaft snap diameter at location 9, refer to TASK 72-00-40-220-002-B00, SUBTASK 72-00-40-220-126.

    42. SUBTASK 72-00-41-220-033 Examine the HP Compressor Shaft Diameter at Location 10

    1. Refer to Figure, Figure and Figure.

    2. V2500 A1: Examine the HP compressor shaft diameter at location 10, refer to TASK 72-00-40-220-002-A00, SUBTASK 72-00-40-220-080.

    3. V2500 A5: Examine the HP compressor shaft diameter at location 10, refer to TASK 72-00-40-220-002-B00, SUBTASK 72-00-40-220-127.

    43. SUBTASK 72-00-41-220-034 Examine the HP Compressor Shaft Threads at Location 11

    1. Refer to Figure, Figure and Figure.

    2. V2500 A1: Examine the HP compressor shaft threads at location 11, refer to TASK 72-00-40-220-002-A00, SUBTASK 72-00-40-220-081.

    3. V2500 A5: Examine the HP compressor shaft threads at location 11, refer to TASK 72-00-40-220-002-B00, SUBTASK 72-00-40-220-128.

    44. SUBTASK 72-00-41-220-035 Examine the HP Compressor Shaft Slots at Location 12

    1. Refer to Figure, Figure and Figure.

    2. V2500 A1: Examine the HP compressor shaft slots at location 12, refer to TASK 72-00-40-220-002-A00, SUBTASK 72-00-40-220-082.

    3. V2500 A5: Examine the HP compressor shaft slots at location 12, refer to TASK 72-00-40-220-002-B00, SUBTASK 72-00-40-220-129.

    45. SUBTASK 72-00-41-220-067 Examine the HP Compressor Rear Shaft Inner Bore at Location 15

    1. Refer to Figure.

      2. Surface damage.

        1. Not more than 0.003 in. (0.076 mm) in depth

        1. Accept

        2. More than Step

        1. Reject

    46. SUBTASK 72-00-41-220-036 Examine the HP Compressor Shaft Heatshield at Location 13

    1. Refer to Figure, Figure and Figure.

    2. V2500 A1: Examine the HP compressor shaft heatshield at location 13, refer to TASK 72-00-40-220-002-A00, SUBTASK 72-00-40-220-083.

    3. V2500 A5: Examine the HP compressor shaft heatshield at location 13, refer to TASK 72-00-40-220-002-B00, SUBTASK 72-00-40-220-130.

    47. SUBTASK 72-00-41-220-037Examine the HP Compressor Shaft Ring Nut at Location 14

    1. Refer to Figure, Figure and Figure.

    2. V2500 A1: Examine the HP compressor shaft ring nut at location 14, refer to TASK 72-00-40-220-002-A00, SUBTASK 72-00-40-220-084.

    3. V2500 A5: Examine the HP compressor shaft ring nut at location 14, refer to TASK 72-00-40-220-002-B00, SUBTASK 72-00-40-220-131.

    48. SUBTASK 72-00-41-220-068 Examine the HP Compressor Rear Case Screw Thread Inserts

      1. Broken, loose, worn, crossed thread or stripped thread

      1. Repair, VRS6518 TASK 72-00-41-300-001 (REPAIR-001).

    49. SUBTASK 72-00-41-220-069 Examine the HP Compressor Rear Outer Case Surface Protection

      CAUTION

      BEFORE YOU DO THE TOUCH UP REPAIR OF THE HP COMPRESSOR REAR OUTER CASE SURFACE, INSTALL MECHANICAL BLANKING PLATES TO THE AREAS OF THE CASE NOT TO BE COATED TO PREVENT CONTAMINATION OR FOREIGN MATERIAL TO ENTER THE ENGINE.

    1. Refer to Figure, Figure and Figure.

      2. Outer surface cumulative damage to the protection above 40 percent of the surface.

      1. Reject.

      3. Damage areas on the outer surface not more than 0.090 sqin. (58.06 sqmm).

      1. Refer to SPM TASK 70-38-21-380-501, SUBTASK 70-38-21-380-010.

      4. More than Step.

      1. Reject.

    50. SUBTASK 72-00-41-220-055 Examine the HP Compressor Shaft Washer at Location AA

    1. Refer to Figure, Figure and Figure.

      2. Missing tabs.

      1. Accept.

        NOTE

        The HPC module may return to service with missing tabs from the tab washers. The tabs are only necessary to aid installation of the washer. However, the bores of the HPC rear shaft, HPT module and LPT module should be examined to make sure that no secondary damage has occurred. In addition the LP Shaft should be examined for secondary damage.

    51. Figure: HP Compressor Front Cases - Inspection Locations

    HP Compressor Front Cases - Inspection Locations

    Figure: V2500-A1: Locations at Interface C-41

    V2500-A1: Locations at Interface C-41

    Figure: V2500-A5: Locations at Interface C-41

    V2500-A5: Locations at Interface C-41

    Figure: V2500-A1 Pre SBE 72-0041: Locations at Interface H-41 Rear Face

    V2500-A1 Pre SBE 72-0041: Locations at Interface H-41 Rear Face

    Figure: V2500-A1, SBE 72-0041: Locations at Interface H-41 Rear Face

    V2500-A1, SBE 72-0041: Locations at Interface H-41 Rear Face

    Figure: V2500-A5: Locations at Interface H-41

    V2500-A5: Locations at Interface H-41

    Figure: Stages 8, 9, 10 and 11 Ceramic Vane Rub Strips

    Stages 8, 9, 10 and 11 Ceramic Vane Rub Strips

    Figure: Front Case Bearing Pads - Inspection Locations

    Front Case Bearing Pads - Inspection Locations

    Figure: Split Line Ring Slots Face (in Assembled Condition)

    Split Line Ring Slots Face (in Assembled Condition)

    Figure: V2500-A1, Pre SBE 72-0027: Rotor Path Ring Slots AF and Slot Faces BD

    V2500-A1, Pre SBE 72-0027: Rotor Path Ring Slots AF and Slot Faces BD

    Figure: V2500-A1, Pre SBE 72-0027: Rotor Path Ring Slots AF and Slot Faces BD

    V2500-A1, Pre SBE 72-0027: Rotor Path Ring Slots AF and Slot Faces BD

    Figure: V2500-A5, Rotor Path Ring Slots AF and Slot Faces BD

    V2500-A5, Rotor Path Ring Slots AF and Slot Faces BD

    Figure: Spindle Wear Inspection

    Spindle Wear Inspection

    Figure: Variable Inlet Guide Vane Zones

    Variable Inlet Guide Vane Zones

    Figure: Stage 3 to 5 Variable Stator Vane Zone

    Stage 3 to 5 Variable Stator Vane Zone

    Figure: Stage 6 Variable Stator Vane Zone

    Stage 6 Variable Stator Vane Zone

    Figure: Stage 6 Vane Zones

    Stage 6 Vane Zones

    Figure: Rotor Path Lining Segments Areas

    Rotor Path Lining Segments Areas

    Figure: HP Compressor Rear Shaft Inner Bore - Inspection Location

    HP Compressor Rear Shaft Inner Bore - Inspection Location

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Revised subtask title. (19VG234)

Change Type:

Correct duplicate subtask number (CAS-70229-X3Z0K9)