TASK 72-41-34-200-027-C00 HPC Vane Actuating Crankshaft And Housings Assembly - Examine, Inspection-027

DMC:V2500-A0-72-41-3410-00C-300A-C|Issue No:004.00|Issue Date:2019-11-01

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 72-41-34-200-027-C00 HPC Vane Actuating Crankshaft And Housings Assembly - Examine, Inspection-027

Effectivity

FIG/ITEM PART NO.

01-600

6A7804

01-600

6A7975

01-600

6A8610

General

This TASK gives the procedure for the inspection of the vane actuating crank shaft assembly.

Fig./item numbers in parentheses in the procedure agree with those used in the IPC. Only the primary Fig./item numbers are used. For the Service Bulletin alpha variants refer to the IPC.

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

All the parts must be cleaned before any part is examined.

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 the parts which must have a crack test is given in Step. Do the crack 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 can be shown to be necessary at a subsequent date.

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

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.

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

Method of Testing for Crack Indications,

Chemical Processes,

Surface Protection.

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NONE

Consumables, Materials and Expendables

NONE

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-41-34-230-117 Examine the Vane Actuating Crank Shaft Assembly for Cracks

    1. Clean the parts. Refer to TASK 72-41-34-100-000 (CLEANING-000).

      2. Do the test for cracks on the parts that are given below.

        PART IDENT

        TASK/SUBTASK

        Vane actuating crank shaft assy

        1. Cracked

        1. Reject

    2. SUBTASK 72-41-34-220-320 Examine the Vane Actuating Crank Shaft Assembly Front Bearing Housing at Location 1

    1. Refer to Figure and Figure.

      2. Bearing housing assembly freedom.

        1. Bearing housing assembly movement should be smooth with no radial movement

        1. Accept

        2. Rotational binding

        1. Reject

        3. Radial movement

        1. Reject

    3. SUBTASK 72-41-34-220-321-A00 Examine the Vane Actuating Crank Shaft Assembly Bearing Surface at Location 1354 (Pre SBE 72-0564)

    1. Refer to Figure.

      2. Scored.

        1. Not more than 0.002 in. (0.05 mm) in depth

        1. Accept

        2. More than in step B.(1)

        1. Reject

      3. Scratched.

        1. Not more than 0.002 in. (0.05 mm) in depth

        1. Accept

        2. More than in step C.(1)

        1. Reject

      4. Wear.

        1. If the crank shaft diameter is between 2.4725 in. to 2.4735 in. (62.8010 mm to 62.8260 mm).

        1. Accept

        2. Less than in step D.(1)

        1. Reject

    4. SUBTASK 72-41-34-220-321-B00 Examine the Vane Actuating Crank Shaft Assembly Bearing Surface at Location 1354 (SBE 72-0564)

      SBE 72-0564: HP compressor- V2500 SelectOne Production - Introduction of redesigned variable stator vane system.

    1. Refer to Figure.

      2. Scored.

        1. Not more than 0.002 in. (0.05 mm) in depth

        1. Accept

        2. More than in step B.(1)

        1. Reject

      3. Scratched.

        1. Not more than 0.002 in. (0.05 mm) in depth

        1. Accept

        2. More than in step C.(1)

        1. Reject

      4. Wear.

        1. If the crank shaft diameter is between 2.8662 in. to 2.8672 in. (72.8010 mm to 72.8260 mm).

        1. Accept

        2. Less than in step D.(1)

        1. Reject

    5. SUBTASK 72-41-34-220-322 Examine the Vane Actuating Crank Shaft Assembly Wire Thread Insert at Location 6

    1. Refer to Figure and Figure.

      2. Broken

      1. Reject

      3. Crossed threads

      1. Reject

      4. Worn excessively

      1. Reject

      5. Threads that are not there

      1. Reject

    6. SUBTASK 72-41-34-220-323 Examine the Vane Actuating Crank Shaft Assembly Surface at Locations 3 and 4 (Pre SBE 72-0564)

    1. Refer to Figure.

      2. Galled.

        1. Not more than 0.005 in. (0.13 mm) in depth. The total area must not be more than 10 percent of the surface area.

        1. Accept.

        2. More than in Step.

        1. Reject.

      3. For PN 6A7975 only, nicked and scratched damage at edges of Location 3.

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

        1. Repair, VRS9392 TASK 72-41-34-300-012 (REPAIR-012).

        2. More than in Step.

        1. Reject.

      4. For PN 6A7975 only, nicked and scratched damage at Location 4.

      1. Reject.

    7. SUBTASK 72-41-34-220-325-A00 Examine the Vane Actuating Crank Shaft Assembly Bolt Holes at Location 9 and 11 (Pre SBE 72-0564)

    1. Refer to Figure.

      2. Elongated

      1. Reject

      3. Burred edges

      1. Reject

      4. Worn - hole 9.

        1. If the large diameter of the holes is less than 0.361 in. (9.16 mm)

        1. Accept

        2. If the large diameter of the hole is more than in step D.(1)

        1. Reject

        3. If the smaller diameter of the hole is less than 0.314 in. (7.97 mm)

        1. Accept

        4. If the smaller diameter of the hole is more than in step D.(3)

        1. Reject

      5. Worn - hole 11.

        1. If the diameter of the hole is less than 0.314 in. (7.97 mm)

        1. Accept

        2. If the diameter of the hole is more than in step E.(1)

        1. Reject

    8. SUBTASK 72-41-34-220-325-B00 Examine the Vane Actuating Crank Shaft Assembly Bolt Holes at Locations 12, 13, 14 and 15 (SBE 72-0564)

      SBE 72-0564: HP compressor - V2500 SelectOne Production - Introduction of redesigned variable stator vane system.

    1. Refer to Figure and Figure.

      2. Elongated

      1. Reject

      3. Burred edges

      1. Reject

      4. Worn.

        1. If the diameter of the hole is less than 0.314 in. (7.97 mm)

        1. Accept

        2. If the diameter of the hole is more than in step D.(1)

        1. Reject

    9. SUBTASK 72-41-34-220-326 Examine the Vane Actuating Crank Shaft Assembly Bush Holes at Location 7

    1. Refer to Figure.

      2. Elongated

      1. Reject

      3. Wear.

        1. The hole bore is between 0.375 in. to 0.376 in. (9.54 mm to 9.56 mm).

        1. Accept

        2. More than in step C.(1)

        1. Reject

      4. Burred edges

      1. Reject

    10. SUBTASK 72-41-34-220-327 Examine the Vane Actuating Crank Shaft Screw Thread Inserts at Location 2 (Pre SBE 72-0564)

    1. Refer to Figure.

      2. Broken

      1. Repair, VRS6258 TASK 72-41-34-300-018 (REPAIR-018)

      3. Crossed threads

      1. Repair, VRS6258 TASK 72-41-34-300-018 (REPAIR-018)

      4. Worn excessively

      1. Repair, VRS6258 TASK 72-41-34-300-018 (REPAIR-018)

      5. Threads that are not there

      1. Repair, VRS6258 TASK 72-41-34-300-018 (REPAIR-018)

    11. SUBTASK 72-41-34-220-328 Examine the Vane Actuating Crank Shaft Assembly Rigging Position Location 8

    1. Refer to Figure and Figure.

      2. Bent.

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

        1. Accept

        2. More than in step B.(1)

        1. Reject

      3. Scored.

        1. Not more than 0.002 in. (0.05 mm) in depth

        1. Accept

        2. More than in step C.(1)

        1. Reject

      4. Scratched.

        1. Not more than 0.002 in. (0.05 mm) in depth

        1. Accept

        2. More than in step D.(1)

        1. Reject

      5. Wear.

        1. If the slot width is less than 0.2770 in. (7.022 mm)

        1. Accept

        2. More than in step E.(1)

        1. Reject

    12. SUBTASK 72-41-34-220-652 Examine the Vane Actuating Crank Shaft Assembly Radii at Location 16 (SBE 72-0564)

      SBE 72-0564: HP compressor - V2500 SelectOne Production - Introduction of redesigned variable stator vane system.

    1. Refer to Figure.

      2. Any mark, nick, dent, scratch or burr.

      1. Reject.

    13. SUBTASK 72-41-34-220-329 Examine the Vane Actuating Crank Shaft Assembly, Hole 10

    1. Refer to Figure and Figure.

      2. Hole 10 (Air Outlet Hole).

        1. Blocked.

        1. Clear hole with air blast.

    14. SUBTASK 72-41-34-220-685 Examine the Vane Actuating Crank Shaft Assembly, Wrench Flat Surfaces (For PN 6A7975 Only)

    1. Refer to Figure and Figure.

      2. Nicked and scratched.

        1. Not more than 0.002 in. (0.05 mm) in depth.

        1. Accept.

        2. More than 0.002 in. (0.05 mm) and not more than 0.020 in. (0.50 mm) in depth.

        1. Repair, VRS9392 TASK 72-41-34-300-012 (REPAIR-012).

        3. More than in Step and Step.

        1. Reject.

      3. Wear.

        1. Not more than 0.020 in. (0.50 mm) in depth.

        1. Repair, VRS9392 TASK 72-41-34-300-012 (REPAIR-012).

        2. More than in Step.

        1. Reject.

      4. Dented.

        1. Not more than 0.002 in. (0.05 mm) in depth.

        1. Accept.

        2. More than in Step.

        1. Repair, VRS6187 TASK 72-41-34-300-019 (REPAIR-019).

      5. Burred.

        1. Not more than 0.002 in. (0.05 mm) in depth.

        1. Accept.

        2. More than in Step.

        1. Repair, VRS6187 TASK 72-41-34-300-019 (REPAIR-019).

    15. SUBTASK 72-41-34-220-686 Examine the Vane Actuating Crank Shaft Assembly, Aft Flange Surfaces (For PN 6A8610 Only)

    1. Refer to Figure and Figure.

      2. Nicked and scratched.

        1. Not more than 0.002 in. (0.05 mm) in depth.

        1. Accept.

        2. More than 0.002 in. (0.05 mm) and not more than 0.010 in. (0.25 mm) in depth.

        1. Repair, VRS9392 TASK 72-41-34-300-012 (REPAIR-012).

        3. More than in Step and Step.

        1. Reject.

      3. Dented.

        1. Not more than 0.002 in. (0.05 mm) in depth.

        1. Accept.

        2. More than in Step.

        1. Repair, VRS6187 TASK 72-41-34-300-019 (REPAIR-019).

    16. SUBTASK 72-41-34-220-687 Examine All Remaining Surfaces on the Vane Actuating Crank Shaft Only

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

      2. Nicked, dented, scratched and burred.

        1. Not more than 0.002 in. (0.05 mm) in depth.

        1. Accept.

        2. More than in Step.

        1. Repair, VRS6187 TASK 72-41-34-300-019 (REPAIR-019).

    17. SUBTASK 72-41-34-220-331 Examine the Vane Actuating Crank Shaft Assembly All Remaining Surfaces

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

      2. Nicked, dented, scratched and burred.

        1. Not more than 0.002 in. (0.05 mm) in depth.

        1. Accept.

        2. More than in Step.

        1. Reject.

    18. SUBTASK 72-41-34-220-688 Examine the Clevis Leg Inner Face

    1. Refer to Figure and Figure.

      2. Surface damage.

        1. Not more than 0.001 in. (0.03 mm) in depth. Remove raised material.

        1. Accept.

        2. More than in Step.

        1. Repair, VRS6187 TASK 72-41-34-300-019 (REPAIR-019).

    19. Figure: SBE 72-0406, SBE 72-0426 and Pre SBE 72-0564: Vane Actuating Crank Shaft - Inspection Locations

    SBE 72-0406, SBE 72-0426 and Pre SBE 72-0564: Vane Actuating Crank Shaft - Inspection Locations

    Figure: SBE 72-0564: Vane Actuating Crank Shaft Assembly - Inspection Locations

    SBE 72-0564: Vane Actuating Crank Shaft Assembly - Inspection Locations

    Figure: SBE 72-0564: Vane Actuating Crank Shaft Assembly - Inspection Locations

    SBE 72-0564: Vane Actuating Crank Shaft Assembly - Inspection Locations

    Figure: SBE 72-0564: Vane Actuating Crank Shaft Assembly - Inspection Locations

    SBE 72-0564: Vane Actuating Crank Shaft Assembly - Inspection Locations

    Figure: Vane Actuating Crank Shaft Assembly - Wrench Flat Inspection Locations (Applicable to PN 6A7975 Only)

    Vane Actuating Crank Shaft Assembly - Wrench Flat Inspection Locations (Applicable to PN 6A7975 Only)

    Figure: Vane Actuating Crank Shaft Assembly - Aft Flange Surfaces Inspection Locations (Applicable to PN 6A8610 Only)

    Vane Actuating Crank Shaft Assembly - Aft Flange Surfaces Inspection Locations (Applicable to PN 6A8610 Only)

    Figure: Vane Actuating Crank Shaft Assembly - Clevis Leg Inner Surface Inspection Locations

    Vane Actuating Crank Shaft Assembly - Clevis Leg Inner Surface Inspection Locations

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Revised the procedure to update the inspection criteria for part numbers. (18VG300)