TASK 72-41-32-200-004 HPC Stage 5 Variable Stator Vane - Examine, Inspection-004

DMC:V2500-A0-72-41-3205-00A-300A-C|Issue No:005.00|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 72-41-32-200-004 HPC Stage 5 Variable Stator Vane - Examine, Inspection-004

Effectivity

FIG/ITEM

PART NO.

04-500

6A3697

04-500

6A3881

04-500

6A4331

04-500

6A5762

04-500

6A7479

04-500

6A7559

04-500

6A8065

04-500

6A8070

04-600

6A3698

04-600

6A3882

04-600

6A4332

04-600

6A5763

04-600

6A7480

04-600

6A7560

04-600

6A8066

04-600

6A8071

General

This TASK gives the procedure for the inspection of the stage 5 variable stator vanes.

Nicks and dents 0.005 in. (0.13 mm) or less are acceptable without limit to the airfoil and gas washed surfaces of the platforms.

Fig/item numbers in parentheses in the procedure agree with those used in the EIPC. Only the primary Fig/item numbers are used. For the service bulletin alpha variants refer to the EIPC.

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. Refer to TASK 72-41-32-100-000 (CLEANING-000).

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. 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 could 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 numbers are in SPM.

References

Refer to SPM for data on these items.

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

Recording and control of component lives, TASK 70-05-00-220-501.

Inspection of Parts, TASK 70-20-01-220-501.

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 72-41-32-230-054 Examine the Stage 5 Variable Stator Vanes for Cracks, (04-500 and 04-600)

    1. Clean the parts. Refer to TASK 72-41-32-100-000 (CLEANING-000).

      2. Do the test for cracks on the part that is given below.

        PART IDENT

        TASK/SUBTASK

        Stage 5 Variable Stator Vanes

        1. Cracked.

        1. Reject.

    2. SUBTASK 72-41-32-220-080 Examine the Stage 5 Variable Stator Vanes Airfoil at Location 1, (04-500 and 04-600)

    1. Refer to Figure.

      2. Nicked.

        1. Up to 0.005 in. (0.13 mm) in depth.

        1. Accept.

        2. More than in Step.

        1. Reject.

      3. Dents.

        1. Up to 0.005 in. (0.13 mm) in depth.

        1. Accept.

        2. More than in Step.

        1. Reject.

      4. Scratched.

        1. Up to 0.005 in. (0.13 mm) in depth.

        1. Repair, VRS6036 TASK 72-41-32-300-007 (REPAIR-007).

      5. Pitted.

        1. Isolated pitting up to 0.005 in. (0.13 mm) in depth.

        1. Accept.

        2. Heavy pitting up to 0.005 in. (0.13 mm) in depth.

        1. Repair, VRS6036 TASK 72-41-32-300-007 (REPAIR-007).

    3. SUBTASK 72-41-32-220-081-001 Examine the Stage 5 Variable Stator Vanes Surfaces at Locations 2, 3 and 4, (04-500 and 04-600, 6A3697, 6A3881, 6A4331, 6A5762, 6A7479, 6A3698, 6A3882, 6A4332, 6A5763 and 6A7480) (Pre SBE 72-0410)

    1. Refer to Figure.

      2. Scored/Scratched.

        1. Up to 0.005 in. (0.13 mm) in depth.

        1. Accept.

        2. More than in Step.

        1. Reject.

      3. Wear.

      1. Reject.

    4. SUBTASK 72-41-32-220-081-002 Examine the Stage 5 Variable Stator Vanes Surfaces at Locations 3 and 4, (04-500 and 04-600, 6A7559, 6A8070, 6A8065, 6A7560, 6A8071 and 6A8066) (SBE 72-0410 and SBE 72-0422)

    1. Refer to Figure.

      2. Scored/Scratched.

        1. Up to 0.005 in. (0.13 mm) in depth.

        1. Accept.

        2. More than in Step.

        1. Reject.

      3. Wear.

      1. Reject.

    5. SUBTASK 72-41-32-220-082 Examine the Stage 5 Variable Stator Vanes Leading and Trailing Edges at Locations 5 and 6, (04-500 and 04-600)

    1. Refer to Figure.

      2. Nicked.

        1. Up to 0.005 in. (0.13 mm) in depth.

        1. Accept.

        2. More than in Step.

        1. Reject.

      3. Dents.

        1. Up to 0.005 in. (0.13 mm) in depth.

        1. Accept.

        2. More than in Step.

        1. Reject.

      4. Scored/Scratched.

        1. Up to 0.005 in. (0.13 mm) in depth.

        1. Repair, VRS6036 TASK 72-41-32-300-007 (REPAIR-007).

    6. SUBTASK 72-41-32-220-083-001 Examine the Stage 5 Variable Stator Vanes Airfoil Surface Finish at Location 1, (04-500 and 04-600, 6A3697, 6A3881, 6A4331, 6A5762, 6A7559, 6A8070, 6A8065, 6A3698, 6A3882, 6A4332, 6A5763, 6A7560, 6A8071 and 6A8066) (Pre SBE 70-0714, SBE 70-0726, SBE 72-0410 and SBE 72-0422)

    1. Refer to Figure.

      NOTE

      A tallysurf measuring instrument must not be used.

      2. Measure the surface finish of the vanes. Use 10 percent of the vanes that have been removed.

        1. Roughness up to 30 micro-inches (0.80 micrometers).

        1. Accept.

        2. More than in Step.

        1. Repair, VRS6078 TASK 72-41-32-300-008 (REPAIR-008).

    7. SUBTASK 72-41-32-220-083-002 Examine the Stage 5 Variable Stator Vanes Airfoil Surface Finish at Location 1, (04-500 and 04-600, 6A7479 and 6A7480) (SBE 70-0714)

    1. Refer to Figure.

      2. Roughness of 10 micro-inches (0.25 micrometers) or less.

      1. Accept.

      3. More than in Step.

      1. Reject.

    8. SUBTASK 72-41-32-220-084 Examine the Stage 5 Variable Stator Vanes Spindle at Locations 7 and 8, (04-500 and 04-600)

    1. Refer to Figure.

      2. Scored/Scratched.

        1. Up to 0.005 in. (0.13 mm) in depth.

        1. Accept.

        2. More than in Step.

        1. Repair, VRS6184 TASK 72-41-32-300-015 (REPAIR-015), or VRS9131 TASK 72-41-32-300-023 (REPAIR-023).

      3. Wear.

        1. If the diameter of the spindle is equal to or greater than 0.467 in. (11.86 mm).

        1. Accept.

        2. If the diameter of the spindle is equal to or greater than 0.4585 in. (11.646 mm) and less than 0.4670 in. (11.860 mm).

        1. Repair, VRS6184 TASK 72-41-32-300-015 (REPAIR-015).

        3. If the diameter of the spindle is less than 0.4585 in. (11.646 mm) and greater than or equal to 0.4500 (11.430 mm) for part numbers 6A4331, 6A4332, 6A5762, 6A5763, 6A7479, 6A7480, 6A7559 and 6A7560.

        1. Repair, VRS9131 TASK 72-41-32-300-023 (REPAIR-023).

      4. Spindle Flat.

        1. Wear.

        1. Reject.

        2. Scored/Scratched.

        1. Reject.

    9. SUBTASK 72-41-32-220-085 Examine the Stage 5 Variable Stator Vanes Stud at Location 9

    1. Refer to Figure.

      2. Thread.

        1. Crossed.

        1. Reject.

        2. Stripped.

        1. Reject.

        3. Pick-up.

        1. Reject.

    10. SUBTASK 72-41-32-220-086 Examine the Stage 5 Variable Stator Vanes Inner Pivot Spindle at Location 1241, (04-500 and 04-600)

    1. Refer to Figure.

      2. Scored/scratched.

        1. Up to 0.005 in. (0.13 mm) in depth.

        1. Accept.

        2. More than in Step.

        1. Repair, VRS6184 TASK 72-41-32-300-015 (REPAIR-015), or VRS9131 TASK 72-41-32-300-023 (REPAIR-023).

      3. Wear.

        1. If the diameter is equal to or greater than 0.2701 in. (6.86 mm) for part numbers 6A5762, 6A5763, 6A7559 and 6A7560.

        1. Accept.

        2. If the diameter is equal to or greater than 0.2710 in. (6.881 mm) for all part numbers except 6A5762, 6A5763, 6A7559 and 6A7560.

        1. Accept.

        3. If the diameter of the spindle is equal to or greater than 0.2609 in. (6.627 mm) and less than 0.2701 in. (6.86 mm) for part numbers 6A5762, 6A5763, 6A7559 and 6A7560.

        1. Repair, VRS6184 TASK 72-41-32-300-015 (REPAIR-015).

        4. If the diameter of the spindle is equal to or greater than 0.2609 in. (6.627 mm) and less than 0.2710 in. (6.881 mm) for all part numbers except 6A5762, 6A5763, 6A7559 and 6A7560.

        1. Repair, VRS6184 TASK 72-41-32-300-015 (REPAIR-015).

        5. If the diameter of the spindle is less than 0.2609 in. (6.627 mm) and greater than or equal to 0.2530 in. (6.426 mm) for part numbers 6A4331, 6A4332, 6A5762, 6A5763, 6A7479, 6A7480, 6A7559 and 6A7560.

        1. Repair, VRS9131 TASK 72-41-32-300-023 (REPAIR-023).

    11. SUBTASK 72-41-32-220-087 Examine the Stage 5 Variable Stator Vanes Seal Ring at Location 10

    1. Refer to Figure.

      2. Wear.

      1. Reject.

      3. Damaged.

      1. Reject.

    12. SUBTASK 72-41-32-220-172 Examine the Stage 5 Variable Stator Vanes Annulus Surfaces at Locations 11 and 12, (04-500 and 04-600, 6A7479 and 6A7480) (SBE 70-0714)

    1. Refer to Figure.

      2. Nicked.

        1. Up to 0.005 in. (0.13 mm) in depth.

        1. Accept.

        2. More than in Step.

        1. Reject.

      3. Dented.

        1. Up to 0.005 in. (0.13 mm) in depth.

        1. Accept.

        2. More than in Step.

        1. Reject.

      4. Surface finish.

        1. Roughness of 16 micro-inches (0.40 micrometers) or less.

        1. Accept.

        2. Roughness more than in Step.

        1. Reject.

    13. SUBTASK 72-41-32-220-232 Examine the Stage 5 Variable Stator Vanes at Location 13 (04-500 and 04-600)

    1. Refer to Figure.

      2. Examine the engraved identity markings.

        1. Identity markings not encroaching into the fillet radius.

        1. Accept.

        2. Other than Step.

        1. Reject.

    14. Figure: Stage 5 Variable Stator Vanes - Inspection Locations

    Stage 5 Variable Stator Vanes - Inspection Locations

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Revised inspection criteria for spindle at locations 7, 8 and 1241. (18VG092)