TASK 72-45-33-300-003 HPT Stage 2 Blade Retaining Plate - Plasma Spray Repair The Front Inner Diameter, Repair-003 (VRS3323)

DMC:V2500-A0-72-45-3301-00A-609A-C|Issue No:004.00|Issue Date:2020-11-01

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 72-45-33-300-003 HPT Stage 2 Blade Retaining Plate - Plasma Spray Repair The Front Inner Diameter, Repair-003 (VRS3323)

Effectivity

FIG/ITEM

PART NO.

01-020

2A0160

01-020

2A1813

01-020

2A2097

01-020

2A3426

01-020

2A3437

Material of component

PART IDENT

SYMBOL

MATERIAL

Stage 2 HPT Blade Retaining Plate

-

Nickel Alloy

Preliminary Requirements

Pre-Conditions

Action/ConditionData Module/Technical Publication
Make sure that all the cleaning and inspection procedures are done before the repair.

Support Equipment

NONE

Consumables, Materials and Expendables

NameManufacturerPart Number / IdentificationQuantityRemark
CoMat 03-080 METAL SPRAYING POWDER,Co BASE ALLOYIE426CoMat 03-080

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-45-33-320-053-A00 Remove the Coating from the Front Diameter of the Stage 2 HPT Retaining Plate (PN 2A0160 and 2A1813)

      NOTE

      This procedure is an alternate to Step.

      NOTE

      Do this procedure only if the part was repaired by VRS3323 before. If the part was repaired before, you will see VRS3323 marked near the part number. If the part was not repaired before by VRS3323, do the procedure in Step.

      NOTE

      Unless specified differently, all dimensions apply when Surface F is flat by 0.010 in. (0.254 mm) in a free condition or 0.001 in. (0.025 mm) in a held condition and Diameter G maintains a clearance envelope of 17.387 in. (441.630 mm) in a free or held condition. Hold the part only on Surfaces F, H, S and T and on Diameter G.

      1. Grind the front inner diameter to remove the IAE 53-18 coating by SPM TASK 70-32-07-100-501. Refer to Figure and Figure.

      1. Remove the minimum amount of parent material necessary to meet the minimum coating thickness and diameter limits, but all the coating must be removed.

    2. SUBTASK 72-45-33-320-053-B00 Remove the Coating from the Front Diameter of the Stage 2 HPT Retaining Plate (PN 2A2097, 2A3426 and 2A3437)

      NOTE

      This procedure is an alternate to Step.

      NOTE

      Do this procedure only if the part was repaired by VRS3323 before. If the part was repaired before, you will see VRS3323 marked near the part number. If the part was not repaired before by VRS3323, do the procedure in Step.

      NOTE

      Unless specified differently, all dimensions apply when Surface F is flat by 0.010 in. (0.254 mm) in a free condition or 0.001 in. (0.025 mm) in a held condition and Diameter G maintains a clearance envelope of 17.215 in. (437.262 mm) in a free or a held condition. Hold the part only on Surfaces F, H, S and T and on Diameter G.

      1. Grind the front inner diameter to remove the IAE 53-18 coating by SPM TASK 70-32-07-100-501. Refer to Figure and Figure.

      1. Remove the minimum amount of parent material necessary to meet the minimum coating thickness and diameter limits, but all coating must be removed.

    3. SUBTASK 72-45-33-150-051 Remove the Coating from the Front Diameter of the Stage 2 HPT Retaining Plate

      NOTE

      This procedure is an alternate to Step and Step.
      Do this procedure only if the part was repaired by TASK 72-45-33-300-003 before. If the part was repaired before, you will see TASK 72-45-33-300-003 marked near the part number. If the part was not repaired before by TASK 72-45-33-300-003, do this procedure in Step or TASK 72-45-33-300-003.

    1. Strip the coating from the front diameter by SPM TASK 70-15-01-160-501. Refer to Figure and Figure or Figure and Figure.

    4. SUBTASK 72-45-33-320-054-A00 Machine or Grind the Front Diameter of the Stage 2 HPT Retaining Plate (PN 2A0160 and 2A1813) Before Plasma Spray

      NOTE

      Do this procedure only if the part was not repaired by TASK 72-45-33-300-003 before. If the part was repaired before, you will see TASK 72-45-33-300-003 marked near the part number.

      NOTE

      Unless specified differently, all dimensions apply when Surface F is flat by 0.010 in. (0.254 mm) in a free condition or 0.001 in. (0.025 mm) in a held condition and Diameter G maintains a clearance envelope of 17.387 in. (441.630 mm) in a free or a held condition. Hold the part only on Surfaces F, H, S and T and on Diameter G.

      1. Machine or grind the front inner diameter before coating. Refer to Figure and Figure.

      1. Remove the minimum amount of parent material necessary to meet the minimum coating thickness and diameter limits.

    5. SUBTASK 72-45-33-320-054-B00 Machine or Grind the Front Diameter of the Stage 2 HPT Retaining Plate (PN 2A2097, 2A3426 and 2A3437) Before Plasma Spray

      NOTE

      Do this procedure only if the part was not repaired by TASK 72-45-33-300-003 before. If the part was repaired before, you will see TASK 72-45-33-300-003 marked near the part number.

      NOTE

      Unless specified differently, all dimensions apply when Surface F is flat by 0.010 in. (0.254 mm) in a free condition or 0.001 in. (0.025 mm) in a held condition and Diameter G maintains a clearance envelope of 17.215 in. (437.262 mm) in a free or a held condition. Hold the part only on Surfaces F, H, S and T and on Diameter G.

      1. Machine or grind the front inner diameter before coating. Refer to Figure and Figure.

      1. Remove the minimum amount of parent material necessary to meet the minimum coating thickness and diameter limits.

    6. SUBTASK 72-45-33-110-057 Clean the Stage 2 HPT Retaining Plate

    1. Clean the retaining plate by SPM TASK 70-11-03-300-503.

    7. SUBTASK 72-45-33-230-058 Fluorescent Penetrant Inspect the Front Inner Diameter

      1. Fluorescent penetrant inspect the front inner diameter by applicable part number task given in SPM TASK 70-23-04-230-501.

      1. Cracks are not permitted.

    8. SUBTASK 72-45-33-380-052 Shotpeen the Front Inner Diameter

      1. Shotpeen the area machined or ground by SPM TASK 70-38-13-380-501. Refer to Figure.

      1. Minimum intensity 4A using SAE 170 maximum shot size.

      2. Use S-170, CW-20 or SCW-20 shot size with a hardness of 45 to 55 HRC or equivalent.

    9. SUBTASK 72-45-33-120-052 Prepare the Repair Area for Plasma Coat

      1. Prepare the repair area for plasma coat by SPM TASK 70-34-18-380-501. Refer to Figure and Figure.

      1. Deleted.

      2. Grit blast outside of the repair area is not permitted. Use masks or maskants.

    10. SUBTASK 72-45-33-340-052 Plasma Spray the Front Inner Diameter

      1. Coat the front inner diameter by SPM TASK 70-34-03-340-501 using CoMat 03-080 METAL SPRAYING POWDER,Co BASE ALLOY. Refer to Figure or Figure.

      1. Mask areas not to be coated. Apply coating thickness to allow finish grinding.

      2. Coating outside of repair area is not permitted. Use masks or maskants.

      3. Coat to a sufficient thickness to allow for finishing.

      4. The maximum thickness to be applied is 0.015 in. (0.381 mm).

      5. The minimum thickness of the coating after finish machining is 0.003 in. (0.076 mm).

    11. SUBTASK 72-45-33-320-055-A00 Finish Grind the Front Diameter of the Stage 2 HPT Retaining Plate (PN 2A0160 and 2A1813) After Plasma Spray

      NOTE

      Unless specified differently, all dimensions apply when Surface F is flat by 0.010 in. (0.254 mm) in a free condition or 0.001 in. (0.025 mm) in a held condition and Diameter G maintains a clearance envelope of 17.387 in. (441.630 mm) in a free or a held condition. Hold the part only on Sufaces F, H, S and T and on Diameter G.

      1. Finish grind the front inner diameter IAE 53-18 coating by SPM TASK 70-32-07-100-501. Refer to Figure and Figure.

      1. The minimum thickness of the coating after machining is 0.003 in. (0.076 mm). The maximum thickness of the coating after machining is 0.010 in. (0.254 mm). Break the edges 0.003 in. to 0.015 in. (0.08 mm to 0.38 mm).

    12. SUBTASK 72-45-33-320-055-B00 Finish Grind the Front Diameter of the Stage 2 HPT Retaining Plate (PN 2A2097, 2A3426 and 2A3437) After Plasma Spray

      NOTE

      Unless specified differently, all dimensions apply when Surface F is flat by 0.010 in. (0.254 mm) in a free condition or 0.001 in. (0.025 mm) in a held condition and Diameter G maintains a clearance envelope of 17.215 in. (437.262 mm) in a free or a held condition. Hold the part only on Surfaces F, H, S and T and on Diameter G.

      1. Finish grind the front inner diameter IAE 53-18 coating by SPM TASK 70-32-07-100-501. Refer to Figure and Figure.

      1. The minimum thickness of the coating after machining is 0.003 in. (0.076 mm). The maximum thickness of the coating after machining is 0.010 in. (0.254 mm). Break the edges 0.003 in. to 0.015 in. (0.08 mm to 0.38 mm).

    13. SUBTASK 72-45-33-220-089 Examine the Repair

    1. Measure the front inner diameter. Refer to Figure and Figure.

      2. Visually examine the coated area by SPM TASK 70-34-03-340-501.

      1. Deleted.

      2. Deleted.

      3. Deleted.

    14. SUBTASK 72-45-33-350-052 Identify the Repair

      1. Permanently mark the part. Refer to Figure for the marking location. Ensure the part is marked as follows:

      1. Mark the part with VRS3323 adjacent to the part number by SPM TASK 70-09-00-400-501, SUBTASK 70-09-00-400-001, using the vibration peen, dot peen or electrolytic etch methods. Remove high spots caused by marking.

      2. For electrolytic etch marking, refer to Figure for the electrical contact area. No burning, pitting or selective attach on the electrical contact areas is permitted.

    15. Figure: HPT Stage 2 Blade Retaining Plate Repair Areas

    HPT Stage 2 Blade Retaining Plate Repair Areas

    Figure: HPT Stage 2 Blade Retaining Plate Grind/Machine Before Plasma Spray Dimensions for PN 2A0160 and 2A1813

    HPT Stage 2 Blade Retaining Plate Grind/Machine Before Plasma Spray Dimensions for PN 2A0160 and 2A1813

    Figure: HPT Stage 2 Blade Retaining Plate Grind/Machine Before Plasma Spray Dimensions for PN 2A2097, 2A3426 and 2A3437

    HPT Stage 2 Blade Retaining Plate Grind/Machine Before Plasma Spray Dimensions for PN 2A2097, 2A3426 and 2A3437

    Figure: HPT Stage 2 Blade Retaining Plate Shotpeen Repair Areas

    HPT Stage 2 Blade Retaining Plate Shotpeen Repair Areas

    Figure: HPT Stage 2 Blade Retaining Plate After Plasma Coat and Finish Grind Repair Dimensions for PN 2A0160 and 2A1813

    HPT Stage 2 Blade Retaining Plate After Plasma Coat and Finish Grind Repair Dimensions for PN 2A0160 and 2A1813

    Figure: HPT Stage 2 Blade Retaining Plate After Plasma Coat and Finish Grind Repair Dimensions for PN 2A2097, 2A3426 and 2A3437

    HPT Stage 2 Blade Retaining Plate After Plasma Coat and Finish Grind Repair Dimensions for PN 2A2097, 2A3426 and 2A3437

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Revised prerequisites, procedure and deleted consumables. (18VC415)

Manufacturer Code:IE426
Enterprise Name:DELETED
BU Name:DELETED,SEE CAGE CODE 1DMQ3
Manufacturer Code:IE426
Supply Number:CoMat 03-080
Type:sp01
Supply Short Name:CoMat 03-080 METAL SPRAYING POWDER,Co BASE ALLOY
Supply Name:CoMat 03-080 METAL SPRAYING POWDER,Co BASE ALLOY
Specification Groups:
Doc NumberType
MSRR9507/3AI-1018 MIL-P-85856/6
OMAT:3/81DAI-1018 MIL-P-85856/6
Suppliers:
ManufacturerRemarks
IE426
IE102
IE208