TASK 72-41-32-200-002-A00 HPC Stage 3 Variable Stator Vane - Examine, Inspection-002

DMC:V2500-A0-72-41-3203-00A-300A-C|Issue No:007.00|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 72-41-32-200-002-A00 HPC Stage 3 Variable Stator Vane - Examine, Inspection-002

Effectivity

FIG/ITEM

PART NO.

02-500

6A3813

02-500

6A3883

02-500

6A4401

02-500

6A5677

02-500

6A7476

02-500

6A7729

02-500

6A8063

02-500

6A8068

02-600

6A3815

02-600

6A3884

02-600

6A4402

02-600

6A5678

02-600

6A7477

02-600

6A7730

02-600

6A8062

02-600

6A8067

General

This TASK gives the procedure for the inspection of the stage 3 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 IPC. Only the primary Fig/item numbers are used. For the service bulletin alpha variant 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 a 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.

Methods 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 72-41-32-230-052 Examine the Stage 3 Variable Stator Vanes for Cracks

    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 3 Variable Stator Vane

        1. Cracked.

        1. Reject.

    2. SUBTASK 72-41-32-220-061 Examine the Stage 3 Variable Stator Vanes Airfoil at Location 1, (02-500 and 02-600)

    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. Dented.

        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, VRS6034 TASK 72-41-32-300-003 (REPAIR-003).

      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, VRS6034 TASK 72-41-32-300-003 (REPAIR-003).

    3. SUBTASK 72-41-32-220-062-001 Examine the Stage 3 Variable Stator Vanes Surfaces at Locations 2, 3 and 4, (02-500 and 02-600, 6A3813, 6A3883, 6A4401, 6A5677, 6A7476, 6A3815, 6A3884, 6A4402, 6A5678 and 6A7477) (Pre SBE 72-0410)

    1. Refer to Figure.

      2. Scored/Scratched.

        1. Up to 0.002 in. (0.05 mm) in depth.

        1. Accept.

        2. More than Step.

        1. Reject.

      3. Wear.

      1. Reject.

    4. SUBTASK 72-41-32-220-062-002 Examine the Stage 3 Variable Stator Vanes Surfaces at Locations 3 and 4, (02-500 and 02-600, 6A7729, 6A8068, 6A8063, 6A7730, 6A8067 and 6A8062) (SBE 72-0410 and SBE 72-0422)

    1. Refer to Figure.

      2. Scored/Scratched.

        1. Up to 0.002 in. (0.05 mm) in depth.

        1. Accept.

        2. More than Step.

        1. Reject.

      3. Wear.

      1. Reject.

    5. SUBTASK 72-41-32-220-063 Examine the Stage 3 Variable Stator Vanes Leading and Trailing Edges at Locations 5 and 6, (02-500 and 02-600)

    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. Dented.

        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, VRS6034 TASK 72-41-32-300-003 (REPAIR-003).

    6. SUBTASK 72-41-32-220-064-001 Examine the Stage 3 Variable Stator Vanes Airfoil Surface Finish at Location 1, (02-500 and 02-600, 6A3813, 6A3883, 6A4401, 6A5677, 6A7729, 6A8068, 6A8063, 6A3815, 6A3884, 6A4402, 6A5678, 6A7730, 6A8067 and 6A8062) (Pre SBE 70-0714, SBE 70-0726, SBE 72-0410 and SBE 72-0422)

    1. Refer to Figure.

      2. NOTE

        A Tallysurf measuring instrument must not be used.

        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 Step.

        1. Repair, VRS6076 TASK 72-41-32-300-004 (REPAIR-004).

    7. SUBTASK 72-41-32-220-064-002 Examine the Stage 3 Variable Stator Vanes Airfoil Surface Finish at Location 1, (02-500 and 02-600, 6A7476 and 6A7477) (SBE 70-0714)

    1. Refer to Figure.

      2. Surface finish.

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

        1. Accept.

        2. Roughness more than in Step.

        1. Reject.

    8. SUBTASK 72-41-32-220-065 Examine the Stage 3 Variable Stator Vanes Spindle at Location 7, (02-500)

    1. Refer to Figure.

      2. Scored/Scratched.

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

        1. Accept.

        2. More than Step.

        1. Repair, VRS6182 TASK 72-41-32-300-013 (REPAIR-013) or VRS9129 TASK 72-41-32-300-022(REPAIR-022).

      3. Wear.

        1. If the diameter of the spindle is not less than 0.6260 in. (15.900 mm).

        1. Accept.

        2. If the diameter of the spindle is between 0.6160 in. to 0.6260 in. (15.646 mm to 15.900 mm).

        1. Repair, VRS6182 TASK 72-41-32-300-013 (REPAIR-013).

        3. If the diameter of the spindle is less than 0.6160 in. (15.646 mm).

        1. Repair, VRS9129 TASK 72-41-32-300-022(REPAIR-022).

      4. Spindle flat.

        1. Wear.

        1. Reject.

        2. Scored/Scratched.

        1. Reject.

    9. SUBTASK 72-41-32-220-066 Examine the Stage 3 Variable Stator Vanes Spindles at Location 8, (02-600)

    1. Refer to Figure.

      2. Scored/Scratched.

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

        1. Accept.

        2. More than Step.

        1. Repair, VRS6182 TASK 72-41-32-300-013 (REPAIR-013) or VRS9129 TASK 72-41-32-300-022(REPAIR-022).

      3. Wear.

        1. If the diameter of the spindle is not less than 0.6260 in. (15.900 mm).

        1. Accept.

        2. If the diameter of the spindle is between 0.6160 in. to 0.6260 in. (15.646 mm to 15.900 mm).

        1. Repair, VRS6182 TASK 72-41-32-300-013 (REPAIR-013).

        3. If the diameter of the spindle is less than 0.6160 in. (15.646 mm).

        1. Repair, VRS9129 TASK 72-41-32-300-022(REPAIR-022).

      4. Spindle flat.

        1. Wear.

        1. Reject.

        2. Scored/Scratched.

        1. Reject.

    10. SUBTASK 72-41-32-220-067 Examine the Stage 3 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.

    11. SUBTASK 72-41-32-220-068 Examine the Stage 3 Variable Stator Vanes Inner Pivot Spindle at Location 1217, (02-500 and 02-600)

    1. Refer to Figure.

      2. Scored/Scratched.

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

        1. Accept.

        2. More than Step.

        1. Repair, VRS6182 TASK 72-41-32-300-013 (REPAIR-013) or VRS9129 TASK 72-41-32-300-022(REPAIR-022).

      3. Wear.

        1. If the diameter is not less than 0.2710 in. (6.883 mm).

        1. Accept.

        2. If the diameter of the spindle is between 0.2609 in. to 0.2710 in. (6.627 mm to 6.883 mm).

        1. Repair, VRS6182 TASK 72-41-32-300-013 (REPAIR-013).

        3. If the diameter of the spindle is less than 0.2609 in. (6.627 mm).

        1. Repair, VRS9129 TASK 72-41-32-300-022(REPAIR-022).

    12. SUBTASK 72-41-32-220-069 Examine the Stage 3 Variable Stator Vanes Seal Ring Groove at Location 10

    1. Refer to Figure.

      2. Wear.

      1. Reject.

      3. Damaged.

      1. Reject.

    13. SUBTASK 72-41-32-220-170 Examine the Stage 3 Variable Stator Vanes Annulus Surfaces at Locations 12 and 13, (02-500 and 02-600, 6A7476 and 6A7477) (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 micrometres) or less.

        1. Accept.

        2. More than Step.

        1. Reject.

    14. SUBTASK 72-41-32-220-173 Examine the Stage 3 Variable Stator Vanes at Location 14 (02-500 and 02-550)

    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.

    15. Figure: Stage 3 Variable Stator Vanes - Inspection Locations

    Stage 3 Variable Stator Vanes - Inspection Locations

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Fix repair link due to task number duplication (CAS-65061-G1D1R6)