TASK 72-45-24-200-002-F00 HPT Stage 2 Ring Segment And Vane Cluster - Examine, Inspection-002

DMC:V2500-A0-72-45-2401-00F-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-F00 HPT Stage 2 Ring Segment And Vane Cluster - Examine, Inspection-002

Effectivity

FIG/ITEM

PART NO.

02-050

2A2272-006

02-050

2A6102

02-260

2A2372-006

02-260

2A4072

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

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NONE

Consumables, Materials and Expendables

NONE

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-45-24-220-169 Examine the Stage 2 HPT Ring Segment and Vane Clusters (02-050) and (02-260) for Cracks

    1. Refer to Figure and Figure.

      NOTE

      When you do the visual inspection that is given below and if cracks are possible but you are not sure, do the penetrant inspection given in Step.

      2. Examine the vane clusters for cracks. use a white light and 10X magnification.

        1. Cracks at locations 1 and 2

        1. Repair, VRS3391 TASK 72-45-24-300-018 (REPAIR-018) and Repair, VRS3221 TASK 72-45-24-300-007 (REPAIR-007) or Repair, 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 not more than 0.050 in. (1.27 mm) in width

          1. Accept

          3. Other than (a) and (b)

          1. Repair, VRS3391 TASK 72-45-24-300-018 (REPAIR-018) 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, VRS3391 TASK 72-45-24-300-018 (REPAIR-018) or Repair, VRS3537 TASK 72-45-24-300-019 (REPAIR-019) or Repair, VRS3802 TASK 72-45-24-300-034 (REPAIR-034) or Repair, VRS3591 TASK 72-45-24-300-024 (REPAIR-024)

        3. Cracks at location 4.

          1. Any amount that are less than 0.50 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, VRS3391 TASK 72-45-24-300-018 (REPAIR-018) or Repair, VRS3537 TASK 72-45-24-300-019 (REPAIR-019) or Repair, VRS3591 TASK 72-45-24-300-024 (REPAIR-024)

        4. Cracks at locations 6 and 7.

          1. Any amount less than 0.50 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, VRS3391 TASK 72-45-24-300-018 (REPAIR-018), Repair, VRS3537 TASK 72-45-24-300-019 (REPAIR-019) or Repair, VRS3802 TASK 72-45-24-300-034 (REPAIR-034) or Repair, VRS3591 TASK 72-45-24-300-024 (REPAIR-024)

    2. SUBTASK 72-45-24-230-071 Examine the Stage 2 HPT Ring Segment and Vane Clusters (02-050) and (02-260) 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:

      Sequa Corp.,
      Chromalloy Research and Technology Div.
      108 Blaisdell Road
      Orangeburg, NY 10962
      USA
      Telephone: (845) 359-4700
      Fax: (845) 359-4409

    3. SUBTASK 72-45-24-220-170 Examine the Stage 2 HPT Ring Segment and Vane Clusters (02-050) and (02-260) 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. Repair, VRS3222 TASK 72-45-24-300-003 (REPAIR-003), Repair, VRS3537 TASK 72-45-24-300-019 (REPAIR-019) or Repair, VRS3802 TASK 72-45-24-300-034 (REPAIR-034) or Repair, VRS3591 TASK 72-45-24-300-024 (REPAIR-024)

        2. Any amount of corrosion and burned area 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 erosion at locations 1, 4, 5 and 6

        1. Accept

        2. Any amount of chips and erosion if base metal is not shown at locations 7 and 8

        1. Accept

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

        1. Repair, VRS3537 TASK 72-45-24-300-019 (REPAIR-019) or Repair, VRS3802 TASK 72-45-24-300-034 (REPAIR-034) or Repair, VRS3591 TASK 72-45-24-300-024 (REPAIR-024)

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

        1. Accept

        5. Other than (4)

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

        6. Chips and erosion at location 2.

          1. Any amount that is less than 0.100 in. (2.54 mm) in length from the trailing edge on the convex side of the vane if the base metal is not shown

          1. Accept

          2. Any amount that is less than 0.250 in. (6.35 mm) in length from the trailing edge on the concave side of the vane if the base metal is not shown

          1. Accept

          3. Other than (a) and (b)

          1. Repair, VRS3537 TASK 72-45-24-300-019 (REPAIR-019) or Repair, VRS3591 TASK 72-45-24-300-024 (REPAIR-024)

        7. Chips and erosion at location 3.

          1. Any amount that is less than 0.400 in. (10.16 mm) from any cooling holes if the base metal is not shown

          1. Accept

          2. Other than (a)

          1. Repair, VRS3537 TASK 72-45-24-300-019 (REPAIR-019) or Repair, VRS3591 TASK 72-45-24-300-024 (REPAIR-024)

      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 not more than 0.010 in. (0.25 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. Other than (1) through (3)

        1. Repair, VR3222 TASK 72-45-24-300-003 (REPAIR-003) and VRS3417 TASK 72-45-24-300-004 (REPAIR-004)

    4. SUBTASK 72-45-24-220-171 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.

        3. Other than (1)

        1. Repair, VRS3391 TASK 72-45-24-300-018 (REPAIR-018)

    5. SUBTASK 72-45-24-220-172 Examine the Stage 2 HPT Ring Segment and Vane Clusters (02-050) and (02-260) 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, not more than 0.005 in. (0.13 mm) in depth on the lugs contact surfaces

          1. Accept

          2. Other than (a)

          1. Repair, VRS3391 TASK 72-45-24-300-018 (REPAIR-018)

    6. SUBTASK 72-45-24-220-173 Examine the Stage 2 HPT Ring Segment and Vane Clusters (02-050) and (02-260) 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, not more than 0.005 in. (0.13 mm) in depth on the contact surfaces

          1. Accept

          2. Other than (a)

          1. Repair, VRS3391 TASK 72-45-24-300-018 (REPAIR-018)

    7. SUBTASK 72-45-24-220-174 Examine the Stage 2 HPT Ring Segment and Vane Clusters (02-050) and (02-260) 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 72-45-24-220-175 Examine the Stage 2 HPT Ring Segment and Vane Clusters (02-050) annd (02-260) 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 Repair, VRS3380 TASK 72-45-24-300-016 (REPAIR-016) or Repair, VRS3492 TASK 72-45-24-300-015 (REPAIR-015)

        2. Grooves

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

    9. SUBTASK 72-45-24-220-176 Examine the Stage 2 HPT Ring Segment and Vane Clusters (02-050) and (02-260) 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 72-45-24-220-177 Examine the Stage 2 HPT Ring Segment and Vane Clusters (02-050) and (02-260) Air Seal Ring Segment Rivet Holes

    1. Refer to Figure.

      NOTE

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

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

        1. Oval diameter.

          1. 0.165 in. (4.19 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. (4.19 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 72-45-24-220-178 Examine the Stage 2 HPT Ring Segment and Vane Clusters (02-050) and (02-260) Trailing Edge Cooling Air Slots

    1. Refer to Figure.

      2. Examine the vane clusters trailing edge cooling air slots and the leading edge cooling air holes for plugging at locations 4 and 8.

        1. Plugging

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

    12. SUBTASK 72-45-24-220-179 Examine the Stage 2 HPT Ring Segment and Vane Clusters (02-050) and (02-260) 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, VRS3319 TASK 72-45-24-300-009 (REPAIR-009)

    13. SUBTASK 72-45-24-220-180 Examine the Stage 2 HPT Ring Segment and Vane Clusters (02-050) and (02-260) 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, 5, 6 and 7.

        1. Burned areas and unwanted material

        1. Repair, VRS3537 TASK 72-45-24-300-019 (REPAIR-019) or Repair, VRS3591 TASK 72-45-24-300-024 (REPAIR-024)

    14. SUBTASK 72-45-24-280-066 Examine the Stage 2 HPT Ring Segment and Vane Clusters (02-050) and (02-260) 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 VRS3537 TASK 72-45-24-300-019 (REPAIR-019) or VRS3591 TASK 72-45-24-300-024 (REPAIR-024) as applicable.

    15. SUBTASK 72-45-24-220-181 Examine the Stage 2 HPT Ring Segment and Vane Clusters (02-050) and (02-260) Feather Seal Slots where Vanes Mated

    1. Refer to Figure.

      NOTE

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

      2. Examine the vane feather seal slots where vanes mated, for burned areas and unwanted material at locations 1, 2, 3, 5, 6 and 7.

        1. Burned areas and unwanted material

        1. Repair, VRS3537 TASK 72-45-24-300-019 (REPAIR-019) or Repair, VRS3591 TASK 72-45-24-300-024 (REPAIR-024)

    16. SUBTASK 72-45-24-220-182 Examine the Stage 2 HPT Ring Segment and Vane Clusters (02-050) and (02-260) Rivet Holes

    1. Refer to Figure.

      NOTE

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

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

        1. Oval diameter.

          1. 0.165 in. (4.19 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. (4.19 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)

    17. SUBTASK 72-45-24-220-183 Examine the Stage 2 HPT Ring Segment and Vane Clusters (02-050) and (02-260) Ring Segment Feather Seal Slots

    1. Refer to Figure.

      2. Examine both of the ring segment feather seal slots for waer at location 5.

        1. The wall thickness is 0.015 in. (0.38 mm)

        1. Accept

        2. Other than (1)

        1. Repair, VRS3681 TASK 72-45-24-300-029 (REPAIR-029)

    18. SUBTASK 72-45-24-220-184 Examine the Stage 2 HPT Air Sealing Ring Segment

    1. Refer to Figure.

      2. Examine the air sealing ring segment flange for wear.

        1. Not more than 0.010 in. (0.25 mm) maximum

        1. Accept

        2. Not more than 0.030 in. (0.76 mm) maximum

        1. Repair, VRS3570 TASK 72-45-24-300-026 (REPAIR-026)

      3. Greater than 0.030 in. (0.76 mm)

    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 Segments and Vane Cluster Airfoil and Platform Inspection Locations

    Sheet 1

    Legend
    Stage 2 HPT Ring Segments 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 Ring Segment and Vane Cluster Airflow Limits Table

    Stage 2 HPT Ring Segment and Vane Cluster Airflow Limits Table

    Figure: Stage 2 HPT Ring Segment Inspection/Check

    Stage 2 HPT Ring Segment Inspection/Check

    Figure: Stage 2 HPT Ring Segment and Vane Cluster Airflow Check Tools

    Stage 2 HPT Ring Segment and Vane Cluster Airflow Check Tools

Requirements After Job Completion

Follow-On Conditions

NONE