TASK 72-45-24-200-002-E00 HPT Stage 2 Ring Segment And Vane Cluster - Examine, Inspection-002

DMC:V2500-A0-72-45-2401-00E-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-E00 HPT Stage 2 Ring Segment And Vane Cluster - Examine, Inspection-002

Effectivity

FIG/ITEM

PART NO.

02-260

2A3172

02-070

2A3272CL21

02-071

2A3272CL22

02-072

2A3272CL23

02-073

2A3272CL24

02-074

2A3272CL25

02-075

2A3272CL26

02-076

2A3272CL27

02-077

2A3272CL28

02-078

2A3272CL29

02-079

2A3272CL30

02-080

2A3272CL31

02-081

2A3272CL32

02-082

2A3272CL33

02-083

2A3272CL34

02-084

2A3272CL35

02-085

2A3272CL36

02-086

2A3272CL37

02-087

2A3272CL38

02-088

2A3272CL39

02-089

2A3272CL40

02-090

2A3272CL41

02-130

2A3152CL21

02-131

2A3152CL22

02-132

2A3152CL23

02-133

2A3152CL24

02-134

2A3152CL25

02-135

2A3152CL26

02-136

2A3152CL27

02-137

2A3152CL28

02-138

2A3152CL29

02-139

2A3152CL30

02-140

2A3152CL31

02-141

2A3152CL32

02-142

2A3152CL33

02-143

2A3152CL34

02-144

2A3152CL35

02-145

2A3152CL36

02-146

2A3152CL37

02-147

2A3152CL38

02-148

2A3152CL39

02-149

2A3152CL40

02-150

2A3152CL41

02-260

2A3172

02-420

2A3252CL21

02-421

2A3252CL22

02-422

2A3252CL23

02-423

2A3252CL24

02-424

2A3252CL25

02-425

2A3252CL26

02-426

2A3252CL27

02-427

2A3252CL28

02-428

2A3252CL29

02-429

2A3252CL30

02-430

2A3252CL31

02-431

2A3252CL32

02-432

2A3252CL33

02-433

2A3252CL34

02-434

2A3252CL35

02-435

2A3252CL36

02-436

2A3252CL37

02-437

2A3252CL38

02-438

2A3252CL39

02-439

2A3252CL40

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 Step. 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

Airflow - Turbine blades and vanes, SPM TASK 70-72-01-720-501

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NONE

Consumables, Materials and Expendables

NONE

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-45-24-230-060 Examine the Stage 2 HPT Ring Segment and Vane Clusters (02-260, 02-050, 02-070 thru 02-090) 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

        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 different 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) or Repair, VRS3737 TASK 72-45-24-300-030 (REPAIR-030)

        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) or Repair, VRS3737 TASK 72-45-24-300-030 (REPAIR-030)

        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) or Repair, VRS3737 TASK 72-45-24-300-030 (REPAIR-017)

    2. SUBTASK 72-45-24-230-061 Examine the Stage 2 HPT Ring Segment and Vane Clusters (02-260, 02-050, 02-070 thru 02-090) for Cracks

      NOTE

      Do this procedure only if you think cracks are possible after the completion of the visual inspection of the vane cluster.

    1. Do a penetrant inspection on the vane cluster. Send the vane cluster to the approved source that follows:

      Pratt and Whitney - Engine Services
      Airfoil Repair Technology
      415 Washington Avenue
      North Haven, CT 06473 USA

    3. SUBTASK 72-45-24-220-128 Examine the Stage 2 HPT Ring Segment and Vane Clusters (02-260, 02-050, 02-070 thru 02-090) 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. VRS3222 TASK 72-45-24-300-003 (REPAIR-003) and VRS3597 TASK 72-45-24-300-023 (REPAIR-023)

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

        1. Accept

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

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

        1. Accept

        2. Any amount of chips and erosion when the metallic bond layer or base metal is not shown at locations 7 and 8

        1. Accept

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

        1. Repair, VRS3578 TASK 72-45-24-300-022 (REPAIR-022)

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

        1. Accept

        5. Other than (4)

        1. Repair, VRS3222 TASK 72-45-300-003 (REPAIR-003) and VRS3597 TASK 72-45-24-300-023 (REPAIR-023) or Repair, VRS3578 TASK 72-45-24-300-022 (REPAIR-022)

      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 0.010 in. (0.254 mm) in depth at locations 1 and 4

        1. Accept

        2. Any amount of nicks and dents on each side not more than 0.010 in. (0.25 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 not more than 0.020 in. (0.51 mm) in depth at locations 5, 6, 7 and 8

        1. Accept

    4. SUBTASK 72-45-24-220-129 Examine the Stage 2 HPT Ring Segment and Vane Clusters (02-260) Outer Diameter Borescope Hole

    1. Refer to Figure and Figure.

      2. Examine the vane clusters outer diameter borescope hole for chipped coating at location 1512.

        1. Not more than 0.050 in. (1.27 mm) all around the borescope hole when the base metal is not shown

        1. Accept

        2. Other than (1)

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

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

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

        1. Accept

        2. Write down the dimension of the diameter.

        2. Other than (1)

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

    5. SUBTASK 72-45-24-220-130 Examine the Stage 2 HPT Ring Segment and Vane Clusters (02-260, 02-050, 02-070 thru 02-090) 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 72-45-24-220-131 Examine the Stage 2 HPT Ring Segment and Vane Clusters (02-260, 02-050, 02-070 thru 02-090) 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 0.005 in. (0.127 mm) in depth on the contact surfaces

          1. Accept

          2. Other than (a)

          1. Repair, VRS3218 TASK 72-45-24-300-001 (72-4-24, REPAIR 001)

    7. SUBTASK 72-45-24-220-132 Examine the Stage 2 HPT Ring Segment and Vane Clusters (02-260, 02-050, 02-070 thru 02-090) 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. Grooves

        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 72-45-24-220-133 Examine the Stage 2 HPT Ring Segment and Vane Clusters (02-260, 02-050, 02-070 thru 02-090) 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. Grooves

        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 72-45-24-220-134 Examine the Stage 2 HPT Ring Segment and Vane Clusters (02-260, 02-050, 02-070 thru 02-090 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 72-45-24-220-135 Examine the Stage 2 HPT Ring Segment and Vane Clusters (02-260, 02-050, 02-070 thru 02-090 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. 0.165 in. (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 0.165 in. (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 (REPAIR-014)

    11. SUBTASK 72-45-24-220-136 Examine the Stage 2 HPT Ring Segment and Vane Clusters (02-260, 02-050, 02-070 thru 02-090) 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 72-45-24-220-137 Examine the Stage 2 HPT Ring Segment and Vane Clusters (02-260, 02-050, 02-070 thru 02-090) 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 72-45-24-220-138 Examine the Stage 2 HPT Ring Segment and Vane Clusters (02-260, 02-050, 02-070 thru 02-090) 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. Reject

    14. SUBTASK 72-45-24-220-139 Examine the Stage 2 HPT ring Segment and Vane Clusters (02-260, 02-050, 02-070 thru 02-090) by the Airflow check

    1. Refer to Figure.

    2. NOTE

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

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

    15. SUBTASK 72-45-24-220-140 Examine the Stage 2 HPT Ring Segment and Vane Clusters (02-260, 02-050, 02-070 thru 02-090) Feather Seal Slots where Vanes Mated

    1. Refer to: Figure

      2. NOTE

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

        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. Reject

    16. SUBTASK 72-45-24-220-141 Examine the Stage 2 HPT Ring Segment and Vane Clusters (02-260, 02-050, 02-070 thru 02-090) Rivet Holes

      NOTE

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

    1. Refer to: Figure

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

        1. Oval diameter.

          1. 0.165 in. (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 0.165 in. (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.

    17. SUBTASK 72-45-24-220-222 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 02-293) 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.

    18. 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 Patform Inspection Locations

    Sheet 2

    Legend
    Stage 2 HPT Ring Segment and Vane Cluster Airfoil and Patform 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 Inspecton Locations

    Stage 2 HPT Ring Segment and Vane Cluster Trailing Edge and Feather Seal Inspecton 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 2HPT Vane - Mateface Dimensional Restoration

    Sheet 1

    Legend
    Stage 2HPT Vane - Mateface Dimensional Restoration

    Sheet 1

    Close

    Figure: Stage 2HPT Vane - Mateface Dimensional Restoration

    Sheet 2

    Legend
    Stage 2HPT Vane - Mateface Dimensional Restoration

    Sheet 2

    Close

Requirements After Job Completion

Follow-On Conditions

NONE