TASK 72-41-31-300-029 HPC Front Cases - Weld Repair Damage To The Stage 3, 4, 5, And 6 Rotor Path Ring Slots, Repair-029 (VRS6661)

DMC:V2500-A0-72-41-3101-01A-627A-C|Issue No:002.00|Issue Date:2019-02-01

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 72-41-31-300-029 HPC Front Cases - Weld Repair Damage To The Stage 3, 4, 5, And 6 Rotor Path Ring Slots, Repair-029 (VRS6661)

Effectivity

FIG/ITEM

PART NO.

ASSEMBLY

01-400

6A3462

B

01-400

6A3675

B

01-400

6A4439

A

01-400

6A5470

C

Material of component

The HP Compressor Front Case is made from titanium alloy.

General

This repair must only be done when the instruction to do so is given in 72-41-31, Inspection-XXX.

The practices and processes referred to in the procedure by the TASK/SUBTASK numbers are in the SPM.

Price and availability - Refer to International Aero Engines

Related repairs - none

NOTE

More equipment and materials necessary to do this repair are in the SPM TASKS given below:
SPM TASK 70-35-03-300-501
SPM TASK 70-11-08-300-503
SPM TASK 70-23-05-230-501
SPM TASK 70-11-26-300-503
SPM TASK 70-31-02-310-501-016
SPM TASK 70-09-00-400-501

NOTE

To identify the consumable materials, refer to the PCI.

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NameManufacturerPart Number / IdentificationQuantityRemark
Chemical Cleaning EquipmentLOCAL
Penetrant Crack Test EquipmentLOCAL
Standard Workshop EquipmentLOCAL
Welding equipmentLOCAL
Workshop inspection equipmentLOCAL
Vibrating Marking PencilLOCAL

Consumables, Materials and Expendables

NameManufacturerPart Number / IdentificationQuantityRemark
CoMat 03-195 WELDING WIRE TITANIUMLOCALCoMat 03-195
CoMat 06-064 FLUORESCENT PENETRANT (WATER WASHABLE MEDIUM SENSITIVITY)X222XCoMat 06-064

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-41-31-350-103 Dress to Remove Damage from HP Compressor Slot Faces, Assembly A, Assembly B, Assembly C and Stage 6 Rotor Path Ring Groove (Assembly A only)

    1. CAUTION

      TITANIUM COMPONENT - YOU MUST USE SILICON CARBIDE TYPE ABRASIVE WHEELS, STONES AND PAPERS TO DRESS, BLEND AND POLISH THIS COMPONENT.

      CAUTION

      TITANIUM COMPONENT - DO NOT USE FORCE WITH MECHANICAL CUTTERS OR THE MATERIAL WILL BECOME TOO HOT.

      CAUTION

      TITANIUM COMPONENT - MAXIMUM SPEED FOR MECHANICAL TOOLS MUST NOT EXCEED 1000 REVOLUTIONS PER MINUTE.

      CAUTION

      TITANIUM COMPONENT - YOU MUST MAKE SURE THAT WHEN YOU REMOVE MATERIAL, BLEND AND POLISH, TO MAKE SMOOTH, THAT NO SPARKS ARE PRODUCED. MASK ADJACENT AREAS OF THE COMPONENT.

      CAUTION

      TITANIUM COMPONENT - IF THE MATERIAL SHOWS A CHANGE IN COLOR, TO DARKER THAN A LIGHT STRAW COLOR, THE COMPONENT IS TO BE REJECTED.

      2. Remove damage as necessary by dressing.

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

        The maximum depth BD after dressing must not be more than 0.080 in. (2.03 mm).

        Use standard workshop equipment.

    2. SUBTASK 72-41-31-110-121 Do a Swab Etch

      1. Chemically clean the repair area(s).

      1. Refer to the SPM TASK 70-11-08-300-503, SUBTASK 70-11-08-300-001.

        Use chemical cleaning equipment.

      2. Swab etch the repair area(s).

      1. Refer to the SPM TASK 70-11-08-300-503, SUBTASK 70-11-08-300-002.

        Use chemical cleaning equipment.

    3. SUBTASK 72-41-31-230-117 Do a Local Crack Test

      1. Do a local penetrant crack test on the repair area(s).

      1. Refer to the SPM TASK 70-23-05-230-501.

        Use penetrant crack test equipment.

        Cracks are not permitted.

    4. SUBTASK 72-41-31-110-122 Chemically Clean

      1. Chemically clean the repair area(s).

      1. Refer to the SPM TASK 70-11-26-300-503.

        Use chemical cleaning equipment.

    5. SUBTASK 72-41-31-220-254 Dimensionally Examine

      2. Do a dimensional inspection of the dressed area(s).

      1. Use workshop inspection equipment.

        Make sure dressed area(s) are within the limits given.

        Maximum depth BD must not be more than 0.080 in. (2.03 mm).

    6. SUBTASK 72-41-31-310-003 Weld the HPC Front Case Slot Faces Assembly A, Assembly B, Assembly C and Stage 6 Rotor Path Groove (Assembly A only)

      2. Weld build-up the dressed area(s).

      1. Use CoMat 03-195 WELDING WIRE TITANIUM welding filler wire with argon arc welding equipment.

        Apply sufficient weld to allow slot dimensions to be recreated.

    7. SUBTASK 72-41-31-220-243 Visually Examine

      1. Do a visual inspection of the welded area(s).

      1. Refer to the SPM TASK 70-31-02-310-501-001, SUBTASK 70-31-02-220-001.

        If the weld bead shows a change in color to a darker than light straw color the component is to be rejected.

    8. SUBTASK 72-41-31-350-104 Reproduce Welded Area(s) Assembly A, Assembly B and Assembly C

    1. CAUTION

      TITANIUM COMPONENT - YOU MUST USE SILICON CARBIDE TYPE ABRASIVE WHEELS, STONES AND PAPERS TO DRESS, BLEND AND POLISH THIS COMPONENT.

      CAUTION

      TITANIUM COMPONENT - DO NOT USE FORCE WITH MECHANICAL CUTTERS OR THE MATERIAL WILL BECOME TOO HOT.

      CAUTION

      TITANIUM COMPONENT - MAXIMUM SPEED FOR MECHANICAL TOOLS MUST NOT EXCEED 1000 REVOLUTIONS PER MINUTE.

      CAUTION

      TITANIUM COMPONENT - YOU MUST MAKE SURE THAT WHEN YOU REMOVE MATERIAL, BLEND AND POLISH, TO MAKE SMOOTH, THAT NO SPARKS ARE PRODUCED. MASK ADJACENT AREAS OF THE COMPONENT.

      CAUTION

      TITANIUM COMPONENT - IF THE MATERIAL SHOWS A CHANGE IN COLOR, TO DARKER THAN A LIGHT STRAW COLOR, THE COMPONENT IS TO BE REJECTED.

      2. Dress the repaired area(s) as necessary to recreate the slot profile(s).

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

        Use standard workshop equipment.

    9. SUBTASK 72-41-31-110-123 Do a Swab Etch

      1. Chemically clean the repaired area(s).

      1. Refer to the SPM TASK 70-11-08-300-503, SUBTASK 70-11-08-300-001.

        Use chemically cleaning equipment.

      2. Swab etch the repaired area(s).

      1. Refer to SPM TASK 70-11-08-300-503, SUBTASK 70-11-08-300-002.

        Use chemically cleaning equipment.

    10. SUBTASK 72-41-31-230-118 Do a Local Crack Test

      1. Do a local penetrant crack test on the repaired area(s).

      1. Refer to the SPM TASK 70-23-05-230-501.

        Use penetrant crack test equipment.

        Cracks are not permitted.

    11. SUBTASK 72-41-31-110-124 Chemically Clean

      1. Chemically clean the repaired area(s) to remove fluorescent penetrant.

      1. Refer to the SPM TASK 70-11-26-300-503.

        Use chemical cleaning equipment.

    12. SUBTASK 72-41-31-220-244 Examine the Repair Area(s)

      2. Visually examine and measure the dimensions of the repaired areas.

      1. Use workshop inspection equipment.

        Make sure dimensions are within the limits given.

    13. SUBTASK 72-41-31-350-105 Identify the Repair

      1. Make a mark VRS6661 adjacent to the part number.

      1. Refer to the SPM TASK 70-09-00-400-501, SUBTASK 70-09-00-400-001.

        Use vibro-engraving equipment.

    14. Figure: Repair Details and Dimensions - Assembly A

    Repair Details and Dimensions - Assembly A

    Figure: Repair Details and Dimensions - Assembly A

    Repair Details and Dimensions - Assembly A

    Figure: Repair Details and Dimensions - Assembly A

    Repair Details and Dimensions - Assembly A

    Figure: Repair Details and Dimensions - Assembly A

    Repair Details and Dimensions - Assembly A

    Figure: Repair Details and Dimensions - Assembly A

    Repair Details and Dimensions - Assembly A

    Figure: Repair Details and Dimensions - Assembly B

    Repair Details and Dimensions - Assembly B

    Figure: Repair Details and Dimensions - Assembly C

    Repair Details and Dimensions - Assembly C

    Figure: Repair Details and Dimensions - Assembly A, Assembly B and Assembly C

    Repair Details and Dimensions - Assembly A, Assembly B and Assembly C

    Figure: Repair Details and Dimensions - Assembly A, Assembly B and Assembly C

    Repair Details and Dimensions - Assembly A, Assembly B and Assembly C

    Figure: Repair Details and Dimensions - Assembly A and Assembly B

    Repair Details and Dimensions - Assembly A and Assembly B

    Figure: Repair Details and Dimensions - Assembly A and Assembly B

    Repair Details and Dimensions - Assembly A and Assembly B

    Figure: Repair Details and Dimensions - Assembly B and Assembly C

    Repair Details and Dimensions - Assembly B and Assembly C

    Figure: Repair Details and Dimensions - Assembly B and Assembly C

    Repair Details and Dimensions - Assembly B and Assembly C

    Figure: Repair Details and Dimensions - Assembly B and Assembly C

    Repair Details and Dimensions - Assembly B and Assembly C

    Figure: Repair Details and Dimensions - Assembly B

    Repair Details and Dimensions - Assembly B

    Figure: Repair Details and Dimensions - Assembly B

    Repair Details and Dimensions - Assembly B

    Figure: Repair Details and Dimensions - Assembly B

    Repair Details and Dimensions - Assembly B

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Editorial - fix link in step 71 (CAS-26684-Z6T5Q8)

Manufacturer Code:LOCAL
Enterprise Name:LOCALLY SUPPLIED
Manufacturer Code:X222X
Enterprise Name:N/A – REFER TO APPLICABLE COMAT SUFFIX
Manufacturer Code:LOCAL
Supply Number:CoMat 03-195
Type:sp01
Supply Short Name:CoMat 03-195 WELDING WIRE TITANIUM
Supply Name:CoMat 03-195 WELDING WIRE TITANIUM
Specification Groups:
Doc NumberType
MSRR9500/73IMI 318
MSRR8632 COMPAMS 4954
OMAT:3/145AMS 4954
TI 6-4
Suppliers:
ManufacturerRemarks
LOCAL
U9025
K6835
2R602
58401
3G172
Manufacturer Code:X222X
Supply Number:CoMat 06-064
Type:sp01
Supply Short Name:CoMat 06-064FLUORESCENT PENETRANT (WATER WASHABLE MEDIUM SENSITIVITY)
Supply Name:CoMat 06-064 FLUORESCENT PENETRANT (WATER WASHABLE MEDIUM SENSITIVITY)
Specification Groups:
Doc NumberType
It is not permitted to mix the selected CoMat 06‐064 letter suffix material with other CoMat 06‐064 letter suffix materials.Where CoMat 06‐064 is specified with no suffix, use one of the CoMat 06‐064 letter suffix materials.
Suppliers:
ManufacturerRemarks
X222X
Link not Found