TASK 72-45-24-200-002-C00 HPT Stage 2 Ring Segment And Vane Cluster - Examine, Inspection-002

DMC:V2500-A0-72-45-2401-00C-300A-C|Issue No:001.00|Issue Date:2013-11-01

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 72-45-24-200-002-C00 HPT Stage 2 Ring Segment And Vane Cluster - Examine, Inspection-002

Effectivity

FIG/ITEM

PART NO.

02-070

2A2772CL21

02-071

2A2772CL22

02-072

2A2772CL23

02-073

2A2272CL24

02-074

2A2772CL25

02-075

2A2772CL26

02-076

2A2772CL27

02-077

2A2772CL28

02-078

2A2772CL29

02-079

2A2772CL30

02-080

2A2772CL31

02-081

2A2772CL32

02-082

2A2772CL33

02-083

2A2772CL34

02-084

2A2772CL35

02-085

2A2772CL36

02-086

2A2772CL37

02-087

2A2772CL38

02-088

2A2772CL39

02-089

2A2772CL40

02-090

2A2772CL41

02-270

2A2872CL21

02-271

2A2872CL22

02-272

2A2872CL23

02-273

2A2873CL24

02-274

2A2872CL25

02-275

2A2872CL26

02-276

2A2872CL27

02-277

2A2872CL28

02-278

2A2872CL29

02-279

2A2872CL30

02-280

2A2872CL31

02-281

2A2872CL32

02-282

2A2872CL33

02-283

2A2872CL34

02-284

2A2872CL35

02-285

2A2872CL36

02-286

2A2872CL37

02-287

2A2872CL38

02-288

2A2872CL39

02-289

2A2872CL40

02-290

2A2872CL41

General

This TASK gives the procedure for the inspection of the stage 2 HPT ring segment and vane clusters.

Fig/item numbers in parentheses in the procedure agree with those used in the IPC.

The policy that is necessary for inspection is given in the SPM TASK 70-20-00-200-501.

All the parts must be cleaned before any part is examined. Refer to the SPM TASK 70-10-00-100-501.

All parts must be visually examined for damage, corrosion and wear. Any defects (distress, missing hardware etc.) that are not identified in the procedure must be documented and referred to IAE Technical Services.

The procedure for those parts which must have a crack test is given in SUBTASK 72-45-24-230-057. Do the test only if the visual examination of the vane cluster is unsatisfactory.

A ** following repair referenced in this inspection indicates that the repair is not yet published in the current revision of the manual and the part must be rejected. Contact IAE for additional information concerning FAA approved repair date.

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 later date.

All 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 numbers are in the SPM.

References

Refer to the SPM for data on these items.

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

Cleaning, SPM TASK 70-12-09-120-501

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

Heat Tint Test, SPM TASK 70-28-01-280-501

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NONE

Consumables, Materials and Expendables

NONE

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-45-24-230-057-001 Examine the Stage 2 HPT Ring Segment and Vane Clusters (02-070 thru 02-090 and 02-270 thru 02-290) for Cracks

    1. Refer to: Figure and Figure

    2. Clean the parts. Refer to TASK 72-45-24-100-000 (CLEANING-000).

      3. Do the crack test on the parts that are given below. Use the applicable penetrant inspection procedure. Look carefully at the airfoil-to-platform fillet radii, platform edges, convex side of airfoil and honeycomb seal braze.

        PART IDENT

        TASK/SUBTASK

        Stage 2 HPT ring segment

        and vane clusters

        (Spray)

        1. Cracks at locations 1 and 2

        1. Repair, VRS3218 TASK 72-45-24-300-001 (REPAIR-001) and VRS3221 TASK 72-45-24-300-007 (REPAIR-007) or VRS3492 TASK 72-45-24-300-015 (REPAIR-015)

        2. Cracks at locations 3 and 5.

          1. Any amount if the cracks do not go through into a crack

          1. Accept

          2. Cracks up to 0.050 in. (1.27 mm) in width

          1. Accept

          3. Other than (a) and (b)

          1. Repair, VRS3218 TASK 72-45-24-300-001 (REPAIR-001) or Repair, VRS3492 TASK 72-45-24-300-015 (REPAIR-015)

          4. Cracks that if extended would go through into a different crack.

          1. Repair, VRS3218 TASK 72-45-24-300-001 (REPAIR-001) or Repair, VRS3219 TASK 72-45-24-300-017 (REPAIR-017)

        3. Cracks at location 4.

          1. Any amount that are less than 0.500 in. (12.7 mm) in length and the cracks are tight. There must be no visual sign of burn at the crack

          1. Accept

          2. Other than (a)

          1. Repair, VRS3218 TASK 72-45-24-300-001 (REPAIR-001) or VRS3219 TASK 72-45-24-300-017 (REPAIR-017)

        4. Cracks at locations 6 and 7.

          1. Any amount less than 0.500 in. (12.7 mm) in length. The cracks must have no closed loops or point to right angles. There must be no visual sign of burn at the crack

          1. Accept

          2. Other than (a)

          1. Repair, VRS3218 TASK 72-45-24-300-001 (REPAIR-001) or VRS3219 TASK 72-45-24-300-017 (REPAIR-017)

    2. SUBTASK 72-45-24-230-057-002 Examine the Stage 2 HPT Ring Segment and Vane Clusters (02-070 thru 02-090 and 02-270 thru 02-290) for Cracks

    1. Refer to: Figure and Figure

    2. Clean the parts. Refer to TASK 72-45-24-100-000 (CLEANING-000).

      3. Do the crack test on the parts that are given below. Use the applicable penetrant inspection procedure. Look carefully at the airfoil-to-platform fillet radii, platform edges, convex side of airfoil and honeycomb seal braze.

        PART IDENT

        TASK/SUBTASK

        Stage 2 HPT ring segment

        and vane clusters

        (Spray)

        1. Cracks at locations 1 and 2

        1. Repair, VRS3218 TASK 72-45-24-300-001 (REPAIR-001) and VRS3221 TASK 72-45-24-300-007 (REPAIR-007) or VRS3492 TASK 72-45-24-300-015 (REPAIR-015)

        2. Cracks at locations 3 and 5.

          1. Any amount if the cracks do not go through into a crack

          1. Accept

          2. Cracks up to 0.050 in. (1.27 mm) in width

          1. Accept

          3. Other than (a) and (b)

          1. Repair, VRS3218 TASK 72-45-24-300-001 (REPAIR-001) or Repair, VRS3492 TASK 72-45-24-300-015 (REPAIR-015)

          4. Cracks that if extended would go through into a different crack

          1. Repair, VRS3218 TASK 72-45-24-300-001 (REPAIR-001) or Repair, VRS3219 TASK 72-45-24-300-017 (REPAIR-017)

        3. Cracks at location 4.

          1. Any amount that are less than 0.500 in. (12.7 mm) in length and the cracks are tight. There must be no visual sign of burn at the crack

          1. Accept

          2. Other than (a)

          1. Repair, VRS3218 TASK 72-45-24-300-001 (REPAIR-001) or VRS3219 TASK 72-45-24-300-017 (REPAIR-017)

        4. Cracks at locations 6 and 7.

          1. Any amount less than 0.500 in. (12.7 mm) in length. The cracks must have no closed loops or point to right angles. There must be no visual sign of burn at the crack

          1. Accept

          2. Other than (a)

          1. Repair, VRS3218 TASK 72-45-24-300-001 (REPAIR-001) or VRS3219 TASK 72-45-24-300-017 (REPAIR-017)

    3. SUBTASK 72-45-24-220-092 Examine the Stage 2 HPT ring Segment and Vane Clusters (02-070 thru 02-090 and 02-270 thru 02-290) Airfoil and Platform

    1. Refer to: Figure and Figure

      2. Examine the vane clusters airfoil and platform for corrosion and burned areas. Use a white light and 10X magnification.

        1. Corrosion and burned areas at locations 1, 2, 3, 4, 7 and 8

        1. Repairs, VRS3217 TASK 72-45-24-300-002 (REPAIR-002), VRS3222 TASK 72-45-24-300-003 (REPAIR-003) and VRS3417 TASK 72-45-24-300-004 (REPAIR-004)

        2. Any amount of corrosion and burned areas at locations 5 and 6

        1. Accept

      3. Examine the vane cluster airfoil and platform for chips and erosion. Use a white light and 10X magnification.

        1. Any amount of chips and nicks at locations 1, 4, 5 and 6

        1. Accept

        2. Any amount of chips and erosion when the base metal is not shown at locations 2, 3, 7, and 8

        1. Accept

        3. If the base metal is shown at locations 2, 3, 7 and 8

        1. Repair, VRS3226 TASK 72-45-24-300-011 (REPAIR-011)

        4. Less than 0.050in. (1.27 mm) from any film cooling hole on the platform at location 7

        1. Accept

          NOTE

          To find if the base metal is shown, use the heat tint test in the SPM TASK 70-28-01-280-501.

        5. Other than (4)

        1. Repair, VRS3217 TASK 72-45-24-300-002 (REPAIR-002), VRS3222 TASK 72-45-24-300-003 (REPAIR-003) and VRS3417 TASK 72-45-24-300-004 (REPAIR-004)

      4. Examine the vane clusters for nicks and dents. All dents must have a round bottom. All nicks and dents must not show base metal. Use a white light and 10X magnification.

        1. Any amount of nicks and dents, up to 0.010in. (0.254 mm) in depth at locations 1 and 4

        1. Accept

        2. Any amount of nicks and dents on each side up to 0.010in. (0.254 mm) in depth at location 2. The nicks and dents must not block any of the cooling air slots by more than 50 percent

        1. Accept

        3. Any amount of nicks and dents on each side up to 0.020in. (0.508 mm) in depth at locations 3, 5, 6, 7 and 8

        1. Accept

        4. Other than (1) through (3)

        1. Repairs, VRS3217 TASK 72-45-24-300-002 (REPAIR-002), VRS3222 TASK 72-45-24-300-003 (REPAIR-003) and VRS3417 TASK 72-45-24-300-004 (REPAIR-004)

    4. SUBTASK 72-45-24-220-093 Examine the Stage 2 HPT Ring Segment and Vane Clusters (02-270 thru 02-290) Outer Diameter Borescope Hole

    1. Refer to: Figure and Figure

      2. Examine the vane clusters outer diameter borescope hole for chipped coating at location 9.

        1. Up to 0.050in. (1.27 mm) all around the borescope hole when the base metal is not shown

        1. Accept

        2. Other than (1)

        1. Repair, VRS3217 TASK 72-45-24-300-002 (REPAIR-002)

      3. Examine the vane clusters outer diameter borescope hole diameter at location 1512.

        1. If the dimension is between 0.504 and 0.515in. (12.8 and 13.08 mm)

        1. Accept

        2. Write down the dimension of diameter.

        2. Other than (1)

        1. Repair, VRS3708 TASK 72-45-24-300-028 (REPAIR-028)

    5. SUBTASK 72-45-24-220-094 Examine the Stage 2 HPT Ring Segment and Vane Clusters (02-070 thru 02-090 and 02-270 thru 02-290) Outer Diameter Positioning Lugs

    1. Refer to: Figure

      2. Examine the vane clusters outer diameter positioning lugs for wear at locations 3 and 4.

        1. Wear.

          1. Fretting and rub, up to 0.005 in. (0.127 mm) in depth on the lugs contact surfaces

          1. Accept

          2. Other than (a)

          1. Repair, VRS3218 TASK 72-45-24-300-001 (REPAIR-001)

    6. SUBTASK 72-45-24-220-095 Examine the Stage 2 HPT Ring Segment and Vane Clusters (02-070 thru 02-090 and 02-270 thru 02-290) Outer Diameter Vane Buttress

    1. Refer to: Figure

      2. Examine the vane clusters outer diameter vane buttress for wear at locations 1 and 2.

        1. Wear.

          1. Fretting and rub, up to 0.005in. (0.127 mm) in depth on the contact surfaces

          1. Accept

          2. Other than (a)

          1. Repair, VRS3218 TASK 72-45-24-300-001 (REPAIR-001)

    7. SUBTASK 72-45-24-220-096 Examine the Stage 2 HPT Ring Segment and Vane Clusters (02-070 thru 02-090 and 02-270 thru 02-290) Inner Diameter Platform Honeycomb

    1. Refer to: Figure

      2. Examine the vane clusters inner diameter honeycomb (front and rear) for burns, damage, bond and wear at locations 1 and 4.

        1. Burns

        1. Repair, VRS3223 TASK 72-45-24-300-006 (REPAIR-006)

        2. Wear.

          1. Grooves, up to 0.075 in. (1.905 mm) in depth and 0.200 in. (5.08 mm) in width

          1. Accept

          2. Other than (a)

          1. Repair, VRS3223 TASK 72-45-24-300-006 (REPAIR-006)

        3. Voids in bonded edges, loose honeycomb and missing braze material (not bonded)

        1. Repair, VRS3223 TASK 72-45-24-300-006 (REPAIR-006)

        4. Crushed or broken honeycomb

        1. Repair, VRS3223 TASK 72-45-24-300-006 (REPAIR-006)

    8. SUBTASK 72-45-24-220-097 Examine the Stage 2 HPT Ring Segment and Vane Clusters (02-070 thru 02-090 and 02-270 thru 02-290) Ring Segment Inner Diameter Honeycomb

    1. Refer to: Figure

      2. Examine the ring segment honeycomb for burns, damage, bond and wear at location 3.

        1. Burns

        1. Repair, VRS3221 TASK 72-45-24-300-007 (REPAIR-007) or VRS3380 TASK 72-45-24-300-016 (REPAIR-016) or VRS3492 TASK 72-45-24-300-015 (REPAIR-015)

        2. Wear

          1. Grooves, up to 0.075in. (1.905 mm) in depth and 0.200in. (5.08 mm) in width

          1. Accept

          2. Other than (a)

          1. Repair, VRS3221 TASK 72-45-24-300-007 (REPAIR-007) or VRS3380 TASK 72-45-24-300-016 (REPAIR-016) or VRS3492 TASK 72-45-24-300-015 (REPAIR-015)

        3. Voids in bonded edges, loose honeycomb and missing braze material (not bonded)

        1. Repair, VRS3221 TASK 72-45-24-300-007 (REPAIR-007) or VRS3380 TASK 72-45-24-300-016 (REPAIR-016) or VRS3492 TASK 72-45-24-300-015 (REPAIR-015)

        4. Crushed or broken honeycomb

        1. Repair, VRS3221 TASK 72-45-24-300-007 (REPAIR-007) or VRS3380 TASK 72-45-24-300-016 (REPAIR-016) or VRS3492 TASK 72-45-24-300-015 (REPAIR-015)

    9. SUBTASK 72-45-24-220-098 Examine the Stage 2 HPT Ring Segment and Vane Clusters (02-070 thru 02-090 and 02-270 thru 02-290) Air Seal Ring Segment Rivets

    1. Refer to: Figure

      2. Examine the air seal ring segment for loose rivets at location 2.

        1. Loose rivets

        1. Repair, VRS3319 TASK 72-45-24-300-009 (REPAIR-009)

    10. SUBTASK 72-45-24-220-099 Examine the Stage 2 HPT Ring Segment and Vane Clusters (02-070 thru 02-090 and 02-270 thru 02-290) Air Seal Ring Segment Rivet Holes

      NOTE

      If the vane cluster and ring segment rivets are removed do this inspection.

    1. Refer to: Figure

      2. Examine the air seal ring segment for oval rivet holes at location 2.

        1. Oval diameter.

          1. 0.165in. (4.191 mm) maximum in diameter

          1. Accept

          2. Other than (a)

          1. Repair, VRS3321 TASK 72-45-24-300-014 (REPAIR-014)

      3. Examine the air seal ring segment for oversize rivet holes at location 2.

        1. More than 0.165in. (4.191 mm) in diameter

        1. Repair, VRS3321 TASK 72-45-24-300-014 (REPAIR-014)

      4. Examine the air seal ring segment rivet holes at location 2.

        1. Cracks

        1. Repair, VRS3321 TASK 72-45-24-300-014

    11. SUBTASK 72-45-24-220-100 Examine the Stage 2 HPT Ring Segment and Vane Clusters (02-070 thru 02-090 and 02-270 thru 02-290) Trailing Edge Cooling Air Slots

    1. Refer to: Figure

      2. Examine the vane clusters trailing edge cooling air slots for plugging at location 7.

        1. Plugging

        1. Repair, VRS3317 TASK 72-45-24-300-010 (REPAIR-010)

    12. SUBTASK 72-45-24-220-101 Examine the Stage 2 HPT Ring Segment and Vane Clusters (02-070 thru 02-090 and 02-270 thru 02-290) for Feather Seals

    1. Refer to: Figure

      2. Examine the vane clusters for feather seals between the detail vanes at locations 1, 2 and 3.

        1. All feather seals are installed and not damaged

        1. Accept

        2. Other than (1)

        1. Repair, VRS3218 TASK 72-45-24-300-001 (REPAIR-001)

    13. SUBTASK 72-45-24-220-102 Examine the Stage 2 HPT Ring Segment and Vane Clusters (02-070 thru 02-090 and 02-270 thru 02-290) Feather Seal Slots

    1. Refer to: Figure

      2. Examine the vane clusters for feather seal slots for burned areas and unwanted material on each end at locations 1, 2, 3, 4, 5 and 6.

        1. Burned areas and unwanted material

        1. Repair, VRS3225 TASK 72-45-24-300-008 (REPAIR-008)**

    14. SUBTASK 72-45-24-280-055 Examine the Stage 2 HPT Ring Segment and Vane Clusters (02-070 thru 02-090 and 02-270 thru 02-290) Vane Coat by Heat Tint

    1. Do the heat tint procedure for the stage 2 ring segment and vane. Cluster assembly by the procedure given in the SPM TASK 70-28-01-280-501.

    15. SUBTASK 72-45-24-280-062 Examine the Stage 2 HPT Ring Segment and Vane Clusters (02-070 thru 02-090 and 02-270 thru 02-290) by the Airflow Check

      NOTE

      Do all the inspections and repairs on the vane before you do the airflow check.

    1. Do the airflow check by the procedure given in VRS3219 TASK 72-45-24-300-017 (REPAIR-017).

    16. SUBTASK 72-45-24-220-103 Examine the Stage 2 HPT Ring Segment and Vane Clusters (02-070 thru 02-090 and 02-270 thru 02-290) Feather Seal Slots where vanes mated

      NOTE

      If the vane cluster and ring segment rivets are removed do this inspection.

    1. Refer to: Figure

      2. Examine the vane feather seal slots where vanes mated, for burned areas and unwanted material at locations 1, 2, 3, 4, 5 and 6.

        1. Burned areas and unwanted material

        1. Repair, VRS3225 TASK 72-45-24-300-008 (REPAIR-008)**

    17. SUBTASK 72-45-24-220-104 Examine the Stage 2 HPT Ring Segment and Vane Clusters (02-070 thru 02-090 and 02-270 thru 02-290) Rivet Holes

      NOTE

      If the vane cluster and ring segment rivets are removed do this inspection.

    1. Refer to: Figure

      2. Examine the vane rivet hole for the oval diameter at location 2.

        1. Oval diameter.

          1. 0.165in. (4.191 mm) maximum in diameter

          1. Accept

          2. Other than (a)

          1. Repair, VRS3318 TASK 72-45-24-300-013 (REPAIR-013)

      3. Examine the vane rivet hole for oversize diameter at location 2.

        1. More than 0.165in. (4.191 mm) in diameter

        1. Repair, VRS3318 TASK 72-45-24-300-013 (REPAIR-013)

      4. Examine the vane rivet hole for cracks at location 2.

        1. Cracks

        1. Repair, VRS3318 TASK 72-45-24-300-013 (REPAIR-013)

    18. SUBTASK 72-45-24-220-221 Examine the Stage 2 HPT Ring Segment and Vane Clusters (02-070 thru 02-090 and 02-093 thru 02-096 and 02-270 thru 02-290 and 02-293 thru 02-296) Inner Diameter Mateface

    1. Refer to Figure and Figure.

      2. Examine the vane inner mateface dimension.

        1. Not more than 0.016 in. (0.41 mm) below nominal

        1. Accept

        2. More than 0.016 in. (0.41 mm) below nominal

        1. Repair, VRS3783 TASK 72-45-24-300-033 (REPAIR-033)

          NOTE

          If the vane cluster and ring segment rivets are removed, do this inspection.

    19. Figure: Stage 2 HPT Ring Segment and Vane Cluster Fluorescent Penetrant Inspection Locations

    Sheet 1

    Legend
    Stage 2 HPT Ring Segment and Vane Cluster Fluorescent Penetrant Inspection Locations

    Sheet 1

    Close

    Figure: Stage 2 HPT Ring Segment and Vane Cluster Fluorescent Penetrant Inspection Locations

    Sheet 2

    Legend
    Stage 2 HPT Ring Segment and Vane Cluster Fluorescent Penetrant Inspection Locations

    Sheet 2

    Close

    Figure: Stage 2 HPT Ring Segment and Vane Cluster Airfoil and Platform Inspection Locations

    Sheet 1

    Legend
    Stage 2 HPT Ring Segment and Vane Cluster Airfoil and Platform Inspection Locations

    Sheet 1

    Close

    Figure: Stage 2 HPT Ring Segment and Vane Cluster Airfoil and Platform Inspection Locations

    Sheet 2

    Legend
    Stage 2 HPT Ring Segment and Vane Cluster Airfoil and Platform Inspection Locations

    Sheet 2

    Close

    Figure: Stage 2 HPT Ring Segment and Vane Cluster Positioning Lugs and Buttress Inspection Locations

    Stage 2 HPT Ring Segment and Vane Cluster Positioning Lugs and Buttress Inspection Locations

    Figure: Stage 2 HPT Ring Segment and Vane Cluster Honeycomb Inspection Locations

    Stage 2 HPT Ring Segment and Vane Cluster Honeycomb Inspection Locations

    Figure: Stage 2 HPT Ring Segment and Vane Cluster Trailing Edge and Feather Seal Inspection Locations

    Stage 2 HPT Ring Segment and Vane Cluster Trailing Edge and Feather Seal Inspection Locations

    Figure: Stage 2 HPT Ring Segment and Vane Cluster Feather Seals Inspection Locations

    Stage 2 HPT Ring Segment and Vane Cluster Feather Seals Inspection Locations

    Figure: Stage 2 HPT Vane - Mateface Dimensional Restoration

    Sheet 1

    Legend
    Stage 2 HPT Vane - Mateface Dimensional Restoration

    Sheet 1

    Close

    Figure: Stage 2 HPT Vane - Mateface Dimensional Restoration

    Sheet 2

    Legend
    Stage 2 HPT Vane - Mateface Dimensional Restoration

    Sheet 2

    Close

Requirements After Job Completion

Follow-On Conditions

NONE