TASK 72-41-22-200-004-A00 HPC Stage 10 Stator Vane - Examine, Inspection-004

DMC:V2500-A0-72-41-2210-00A-300A-C|Issue No:004.00|Issue Date:2017-11-01

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 72-41-22-200-004-A00 HPC Stage 10 Stator Vane - Examine, Inspection-004

Effectivity

FIG/ITEM

PART NO.

05-350

6A3276

05-400

6A3275C01

05-448

6A3275C01

05-450

6A3275C02

General

This TASK gives the procedure for the inspection of the HP compressor stage 10 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 given 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 the 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 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 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 the 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 72-41-22-230-054 Examine the Stage 10 Stator Vanes for Cracks

    1. Clean the parts. Refer to TASK 72-41-22-100-000.

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

        PART IDENT

        TASK/SUBTASK

        Stage 10 Stator Vanes

        SPM TASK 70-23-03-230-501

        1. Cracked.

          1. Airfoil tips.

          1. Refer to Step.

          2. All remaining areas.

          1. Reject.

    2. SUBTASK 72-41-22-220-082 Examine the Stage 10 Stator Vanes Concave and Convex Airfoil Surfaces at Locations 1 and 2

    1. Refer to Figure.

      2. Nicked.

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

        1. Accept.

        2. More than the Step.

        1. Reject.

          NOTE

          A Tallysurf measuring instrument must not be used.

      3. Dented.

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

        1. Accept.

        2. More than in Step.

        1. Reject.

      4. Measure the surface finish of the vanes. Use 10 percent of the vanes that have been remove.

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

        1. Accept

        2. More than in Step.

        1. Repair, VRS6083 TASK 72-41-22-300-014 (REPAIR-014)

    3. SUBTASK 72-41-22-220-083 Examine the Stage 10 Stator Vanes Stop Slot at Location 3

    1. Refer to Figure.

      2. Galled

      1. Reject

      3. Damage.

        1. To the corners of the slot.

        1. Reject.

    4. SUBTASK 72-41-22-220-084 Examine the Stage 10 Stator Vanes Leading and Trailing Edges at Locations 4 and 5

    1. Refer to Figure.

      2. Nicked

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

        1. Accept.

        2. More than the 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.

    5. SUBTASK 72-41-22-220-086 Examine the Stage 10 Stator Vanes Faces at Locations 8 and 9

    1. Refer to Figure.

      2. Galled.

        1. Not more than 0.002 in. (0.05 mm) in depth. This must not be more than 25 percent of the touch area

        1. Accept

        2. Not more than 0.005 in. (0.13 mm) in depth. This must not be more than 25 percent of the touch area and not less than 0.0787 in. (2.000 mm) from face 10

        1. Accept

        3. More than in Step or Step.

        1. Reject

    6. SUBTASK 72-41-22-220-087 Examine the Stage 10 Stator Vanes Faces at Location 10

    1. Refer to Figure.

      2. Galled.

        1. Up to 0.006 in. (0.15 mm) in depth, not less than 0.040 in. (1.00 mm) away from the land face.

        1. Accept

        2. More than in Step.

        1. Reject

    7. SUBTASK 72-41-22-220-117 Examine the Stage 10 Stator Vanes Airfoil Tips for Cracks and Rubs at Locations 1060

    1. Refer to Figure.

      2. Cracked

      1. Repair, VRS6063 TASK 72-41-22-300-016 (REPAIR-016)

      3. Rubbed

      1. Repair, VRS6063 TASK 72-41-22-300-016 (REPAIR-016)

    8. SUBTASK 72-41-22-220-088 Examine the Stage 10 Stator Vanes Cheeks at Locations 11 to 14

    1. Refer to Figure.

      2. Galled.

        1. Up to 0.015 in. (0.38 mm) in depth. This must not be in an area more than 50 percent of each surface

        1. Accept

        2. More than in Step.

        1. Reject

    9. SUBTASK 72-41-22-220-090 Examine the Stage 10 Stator Vanes at Locations 1135 and 1137

    1. Refer to Figure.

      2. Location 1135.

        1. If the thickness of the land is between 0.0755 in. to 0.0787 in. (1.92 mm to 2.00 mm)

        1. Accept

        2. If the thickness of the land is between 0.0680 in. to 0.0755 in. (1.73 mm to 1.92 mm) over an area of not more than 25 percent

        1. Accept

        3. If the thickness of the land is between 0.0680 in. to 0.0755 in. (1.73 mm to 1.92 mm) over an area of more than 25 percent

        1. Reject

        4. If the thickness of the land is less than the minimum in Step.

        1. Reject

        5. If less than 10 percent reduction in thickness over an areas of less than 25 percent

        1. Accept

        6. More than in Step.

        1. Reject

      3. Location 1137.

        1. If the thickness of the land is between 0.0952 in. to 0.0984 in. (2.42 mm to 2.50 mm)

        1. Accept

        2. If the thickness of the land is between 0.0856 in. to 0.0952 in. (2.18 mm to 2.42 mm) over an area of not more than 25 percent

        1. Accept

        3. If the thickness of the land is between 0.0856 in. to 0.0952 in. (2.18 mm to 2.42 mm) over an area of more than 25 percent

        1. Reject

        4. If the thickness of the land is less than the minimum in Step.

        1. Reject

        5. If less than 10 percent reduction in thickness over an areas of less than 25 percent

        1. Accept

        6. More than in Step.

        1. Reject

    10. SUBTASK 72-41-22-220-250 Examine the Stage 10 Stator Vanes Platform (Annulus Surface) at Location 15

      NOTE

      Class identification marks as scores.

    1. Refer to Figure.

      2. Surface finish.

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

        1. Accept

        2. Roughness more than in Step.

        1. Reject

      3. Scored/Scratched.

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

        1. Reject

        2. Not more than 0.005 in. (0.13 mm) in depth

        1. Accept

        3. Airfoil fillet radius.

        1. Reject.

        4. On face edge.

        1. Refer to SPM TASK 70-35-03-300-501 to remove score.

        5. Remaining face.

        1. Accept.

      4. Nicked.

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

        1. Accept.

        2. More than Step.

        1. Reject.

      5. Dented.

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

        1. Accept.

        2. More than in Step.

        1. Reject.

    11. SUBTASK 72-41-22-220-251 Examine the Stage 10 Stator Vanes Platform (Bottom Face)

    1. Refer to Figure and Figure.

      NOTE

      Class identification marks as scores.

      2. Part marking and repair symbol location 16.

        1. On face edge

        1. Refer to SPM TASK 70-35-03-300-501 to remove score

        2. Remaining face

        1. Accept.

      3. Examine the stage 10 stator vane at location 17.

        1. On face edge

        1. Refer to SPM TASK 70-35-03-300-501 to remove score

        2. Remaining face

        1. Accept

    12. SUBTASK 72-41-22-220-118 Examine the Stage 10 Stator Vanes all Remaining Surfaces

      1. Nicked, dented or scored/scratched.

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

        1. Accept

        2. More than in Step.

        1. Reject

    13. Figure: Stage 10 Stator Vanes - Inspection Locations

    Stage 10 Stator Vanes - Inspection Locations

    Figure: Stage 10 Stator Vanes - Inspection Locations

    Stage 10 Stator Vanes - Inspection Locations

    Figure: Stage 10 Stator Vanes - Inspection Locations

    Stage 10 Stator Vanes - Inspection Locations

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Revised the procedure to update SPM reference. (17VC212)