TASK 72-41-21-300-014 HPC Stage 9 Case - Replace The Location Dowel, Repair-014 (VRS6251)

DMC:V2500-A0-72-41-2109-00A-920A-C|Issue No:002.00|Issue Date:2015-08-01

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 72-41-21-300-014 HPC Stage 9 Case - Replace The Location Dowel, Repair-014 (VRS6251)

Effectivity

FIG/ITEM

PART NO.

ASSEMBLY

03-800

6A3388

A

03-800

6A4311

A

03-800

6A4326

B

03-800

6A6511

B

03-800

6A6550

C

03-800

6B1434

D

Material of component

PART IDENT

MATERIAL

HP compressor stage 9 case assembly

Heat resisting alloy

HP compressor stage 10 rotor path case assembly

Heat resisting alloy

Universal head solid rivet

Heat resisting alloy

Washer

Corrosion resistant steel

Dowel

Heat resisting alloy

Headless shoulder pin

Heat resisting alloy

General

This TASK gives the procedure to replace the location dowel on the HP compressor stage 9 case and stage 10 rotor path case assembly.

The practices and processes referred to in the procedure by the TASK/SUBTASK numbers are in the Standard Practices and Processes Manual (SPM).

Price and availability - Refer to International Aero Engines

Related Repairs - none

NOTE

Equipment and materials necessary to do this repair are in the SPM TASKs given below:

NOTE

  1. It is not possible that some material in the consumable materials chart cannot be used for some or all of the necessary applications. Before you use the materials, make sure the types, quantities and applications of the materials necessary are legally permitted in your location. All persons must obey all applicable federal, state, local and provincial laws and regulations when it is necessary to work with these materials.

  2. To identify the consumable materials, refer to the Consumable Materials Manual (CoMat).

  3. Other necessary consumable materials are referred to in the SPM TASKS in this TASK.

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NameManufacturerPart Number / IdentificationQuantityRemark
Air operated hand grinderLOCALAir operated hand grinder
Chemical cleaning equipmentLOCALChemical cleaning equipment
Penetrant Crack Test EquipmentLOCALPenetrant crack test equipment
Standard workshop equipmentLOCALStandard workshop equipment
Vibro-engraving equipmentLOCALVibro-engraving equipment
Workshop inspection equipmentLOCALWorkshop inspection equipment

Consumables, Materials and Expendables

NameManufacturerPart Number / IdentificationQuantityRemark
CoMat 03-026 LIQUID NITROGENLOCALCoMat 03-026
CoMat 06-064 FLUORESCENT PENETRANT (WATER WASHABLE MEDIUM SENSITIVITY)LOCALCoMat 06-064

Spares

NameManufacturerPart Number / IdentificationQuantityRemark
Universal head solid rivetAS16295A/R
WasherEY29248A/R
DowelUP10743A/R
DowelUP60478A/R
Headless shoulder pinAS44803A/R

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-41-21-350-095 Remove the Loose or Damaged Dowel(s) - Assemblies A, B and C

      CAUTION

      DO NOT REMOVE PARENT MATERIAL FROM THE STAGE 9 CASE AND STAGE 10 ROTOR PATH CASE ASSEMBLY.

    1. Refer to Figure and Figure for Assembly A.

      Refer to Figure and Figure for Assembly B.

      Refer to Figure and Figure for Assembly C.

      2. Remove the loose or damaged dowel.

      1. Use an air operated hand grinder.

        Grind off the rivet head and remove the rivet, the washer and the dowel.

    2. SUBTASK 72-41-21-350-261 Remove the Loose or Damaged Pin - Assembly D

    1. Refer to Figure and Figure.

      2. Remove the loose or damaged pin.

      1. Use standard workshop equipment.

    3. SUBTASK 72-41-21-110-151 Clean the Dowel Location Hole or Pin Location Hole

      1. Chemically clean.

      1. Refer to TASK 72-41-21-100-000 (CLEANING-000) and TASK 72-41-21-100-001 (CLEANING-001).

        Use chemical cleaning equipment.

    4. SUBTASK 72-41-21-220-258 Examine the Dowel Location Hole - Assemblies A, B, C and D

    1. Refer to Figure and Figure for Assembly A.

      Refer to Figure and Figure for Assembly B.

      Refer to Figure and Figure for Assembly C.

      Refer to Figure and Figure for Assembly D.

      2. Do a dimensional inspection of the dowel location hole.

      1. The hole must not be oversized.

        If the dimensions are not in the limits, reject the part.

        Use workshop inspection equipment.

    5. SUBTASK 72-41-21-230-104 Do a Crack Test

      1. Do a local penetrant crack test around the location hole.

      1. Refer to the SPM TASK 70-23-02-230-501.

        Use CoMat 06-064 FLUORESCENT PENETRANT (WATER WASHABLE MEDIUM SENSITIVITY) fluorescent penetrant (water washable medium sensitivity).

        Use penetrant crack test equipment.

        If there is a crack, reject the part.

    6. SUBTASK 72-41-21-350-096-A00 Install the Dowel - Assembly A

      WARNING

      DO NOT GET LIQUID NITROGEN ON YOUR SKIN OR IN YOUR EYES. PUT ON PROTECTIVE CLOTHING, GLOVES, GOGGLES AND A MASK. LIQUID NITROGEN IS AN ASPHYXIATOR. USE THE LIQUID IN A GOOD VENTILATED AREA. IF YOU GET THE LIQUID NITROGEN ON YOUR SKIN OR IN YOUR EYES, FLUSH IT AWAY WITH WATER. GET MEDICAL AID IF YOUR SKIN OR EYES BECOME IRRITATED.

    1. Refer to Figure and Figure.

      2. Freeze the dowel.

      1. Use UP10743 dowel HPC Ring Cases And Related Parts (72-41-21,03-825) 1 off.

        Use locally made freeze plug.

      3. Install the dowel.

      1. Use standard workshop equipment.

    7. SUBTASK 72-41-21-350-096-B00 Install the Dowel - Assemblies B and C

      WARNING

      DO NOT GET LIQUID NITROGEN ON YOUR SKIN OR IN YOUR EYES. PUT ON PROTECTIVE CLOTHING, GLOVES, GOGGLES AND A MASK. LIQUID NITROGEN IS AN ASPHYXIATOR. USE THE LIQUID IN A GOOD VENTILATED AREA. IF YOU GET THE LIQUID NITROGEN ON YOUR SKIN OR IN YOUR EYES, FLUSH IT AWAY WITH WATER. GET MEDICAL AID IF YOUR SKIN OR EYES BECOME IRRITATED.

    1. Refer to Figure and Figure for Assembly B.

      Refer to Figure and Figure for Assembly C.

      2. Freeze the dowel.

      1. Use UP60478 dowel HPC Ring Cases And Related Parts (72-41-21,03-825) 1 off.

        Use locally made freeze plug.

      3. Install the dowel.

      1. Use standard workshop equipment.

    8. SUBTASK 72-41-21-350-096-C00 Install the Pin - Assembly D

      WARNING

      DO NOT GET LIQUID NITROGEN ON YOUR SKIN OR IN YOUR EYES. PUT ON PROTECTIVE CLOTHING, GLOVES, GOGGLES AND A MASK. LIQUID NITROGEN IS AN ASPHYXIATOR. USE THE LIQUID IN A GOOD VENTILATED AREA. IF YOU GET THE LIQUID NITROGEN ON YOUR SKIN OR IN YOUR EYES, FLUSH IT AWAY WITH WATER. GET MEDICAL AID IF YOUR SKIN OR EYES BECOME IRRITATED.

    1. Refer to Figure and Figure.

      2. Freeze the pin.

      1. Use AS44803 headless shoulder pin HPC Ring Cases And Related Parts (72-41-21,03-868) 1 off.

        Use locally made freeze plug.

      3. Install the pin.

      1. Use standard workshop equipment.

    9. SUBTASK 72-41-21-350-155 Install the Universal Head Solid Rivet - Assemblies A, B and C

    1. Refer to Figure and Figure for Assembly A.

      Refer to Figure and Figure for Assembly B.

      Refer to Figure and Figure for Assembly C.

      2. Install the universal head solid rivet and washer into the case and dowel.

      1. Use AS16295 universal head solid rivet HPC Ring Cases And Related Parts (72-41-21,03-822) 1 off and EY29248 washer HPC Ring Cases And Related Parts (72-41-21,03-824) 1 off as necessary.

        Use standard workshop equipment.

    10. SUBTASK 72-41-21-390-051 Make the Head of the Rivet - Assemblies A, B and C

      CAUTION

      YOU MUST MAKE SURE THAT THE FLANGE IS SUFFICIENTLY SUPPORTED DURING THE COLD SQUEEZE PROCESS. IF YOU DO NOT OBEY, DAMAGE TO THE COMPONENT CAN OCCUR.

    1. Refer to Figure and Figure for Assembly A.

      Refer to Figure and Figure for Assembly B.

      Refer to Figure and Figure for Assembly C.

      2. Cold squeeze the universal head solid rivet in place.

      1. Refer to the SPM TASK 70-39-03-390-501.

        Use standard workshop equipment.

    11. SUBTASK 72-41-21-220-259-A00 Examine the Case Assembly - Assemblies A, B and C

    1. Refer to Figure and Figure for Assembly A.

      Refer to Figure and Figure for Assembly B.

      Refer to Figure and Figure for Assembly C.

      2. Do a dimensional inspection of the installed rivet.

      1. Make sure that the rivet is not loose and fully installed.

        Measure the dimensions of the installed rivet.

        Use workshop inspection equipment.

        If the dimensions of the installed rivet are in the limit, continue with Step.

        If the dimensions of the installed rivet are not in the limit, do the repair from Step again.

    12. SUBTASK 72-41-21-220-686 Examine the Case Assembly - Assembly D

    1. Refer to Figure and Figure.

      2. Do a visual inspection of the installed pin.

      1. Make sure that the pin is not loose and fully installed.

        If the installed pin is not loose or damaged, continue with Step.

        If the installed pin is loose or damaged, do the repair from Step again.

    13. SUBTASK 72-41-21-110-159 Chemically Clean

      1. Locally chemical clean the rivet head and dowel.

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

        Use chemical cleaning equipment.

    14. SUBTASK 72-41-21-230-105 Do a Crack Test

      1. Do a local penetrant crack test on the rivet head and dowel.

      1. Refer to the SPM TASK 70-23-02-230-501.

        Use CoMat 06-064 FLUORESCENT PENETRANT (WATER WASHABLE MEDIUM SENSITIVITY) fluorescent penetrant (water washable medium sensitivity).

        Use penetrant crack test equipment.

        If there are cracks, do the repair from Step again.

    15. SUBTASK 72-41-21-350-198 Identify the Repair

    1. Refer to Figure for Assembly A.

      Refer to Figure for Assembly B.

      Refer to Figure for Assembly C.

      Refer to Figure for Assembly D.

      2. Vibration peen VRS6251 adjacent to the assembly number.

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

        Use vibro-engraving equipment.

    16. 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 D

    Repair Details and Dimensions - Assembly D

    Figure: Repair Details and Dimensions - Assemblies A and B

    Repair Details and Dimensions - Assemblies A and B

    Figure: Repair Details and Dimensions - Assembly C

    Repair Details and Dimensions - Assembly C

    Figure: Repair Details and Dimensions - Assembly D

    Repair Details and Dimensions - Assembly D

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Replaced Figure 3 with correct figure (inadvertently switched during conversion). (PSCOMM HAJ362 HI)

Link not Found
Manufacturer Code:LOCAL
Enterprise Name:LOCALLY SUPPLIED
Link not Found
Link not Found
Link not Found
Link not Found
Link not Found
Manufacturer Code:LOCAL
Supply Number:CoMat 03-026
Type:sp01
Supply Short Name:CoMat 03-026 LIQUID NITROGEN
Supply Name:CoMat 03-026 LIQUID NITROGEN
Specification Groups:
Doc NumberType
OMAT:220BB-N-411 T2GBC1
JCR-135BB-N-411 T2GBC1
Suppliers:
ManufacturerRemarks
LOCAL
U2046
U2096
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
Manufacturer Code:LOCAL
Tool Number:Air operated hand grinder
Tool Name:Air operated hand grinder
Manufacturer Code:LOCAL
Tool Number:Chemical cleaning equipment
Tool Name:Chemical cleaning equipment
Manufacturer Code:LOCAL
Tool Number:Penetrant crack test equipment
Tool Name:Penetrant Crack Test Equipment
Link not Found
Manufacturer Code:LOCAL
Tool Number:Vibro-engraving equipment
Tool Name:Vibro-engraving equipment
Manufacturer Code:LOCAL
Tool Number:Workshop inspection equipment
Tool Name:Workshop inspection equipment