TASK 72-41-21-300-081 HPC Stage 11 Case - Replace The Borescope Access Port And/or Rivets, Repair-081 (VRS6352)

DMC:V2500-A0-72-41-2111-01A-920A-C|Issue No:003.00|Issue Date:2017-11-01

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 72-41-21-300-081 HPC Stage 11 Case - Replace The Borescope Access Port And/or Rivets, Repair-081 (VRS6352)

Effectivity

FIG/ITEM

PART NO.

Assembly

04-600

6A3390

A

04-600

6A4328

B

04-600

6A6552

C

04-600

6B1436

D

Material of component

PART IDENT

SYMBOL

MATERIAL

HP Compressor Stage 11 Compressor case Assembly

QRK

or QTX

Nickel Cobolt Steel

Borescope access port

EAK

Corrosion Resistant Steel

Rivet

Heat Resistant Alloy

General

This Repair must only be done when the instruction to do so is given in 72-41-21 Inspection.

When any of the rivet(s) which secure the borescope access port require to be replaced go to Step.

When the borescope access port requires to be replaced go to SUBTASK 72-41-21-350-190.

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

Equivalent materials or equipment can be used.
More equipment and materials necessary to do this Repair are in the SPM TASKS given below:
Marking Of Parts - Permanent Identification

NOTE

To identify the consumable materials refer to the PCI.

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NameManufacturerPart Number / IdentificationQuantityRemark
Chemical cleaning equipmentLOCALChemical cleaning equipment
Vertical drilling machineLOCALVertical drilling machine
Workshop inspection equipmentLOCALWorkshop inspection equipment
Dial indicatorLOCALDial indicator
DrillLOCALDrill
Standard workshop equipmentLOCALStandard workshop equipment
Penetrant Crack Test EquipmentLOCALPenetrant crack test equipment
Cold squeeze riveting equipmentLOCALCold squeeze riveting equipment
Vibrating marking pencilLOCALVibrating marking pencil

Consumables, Materials and Expendables

NameManufacturerPart Number / IdentificationQuantityRemark
CoMat 02-121 TEMPORARY MARKER PENCIL/CRAYONIE304CoMat 02-121
CoMat 02-122 TEMPORARY MARKER PENCIL/CRAYONK6835CoMat 02-122
CoMat 06-022 FLUORESCENT PENETRANT (POST-EMULSIFIED ULTRA HIGH SENSITIVITY)LOCALCoMat 06-022

Spares

NameManufacturerPart Number / IdentificationQuantityRemark
Rivet, solid CSK headAS166884 A/R
Rivet, solid CSK headAS167294 A/R

(oversize)

Boss, borescope access port6A41871 A/R

(Assy A)

Boss, borescope access port6A58701 A/R

(Assembly B, Assembly C and Assembly D)

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-41-21-350-190-A00 Disassemble the Borescope Access Port from the Stage 11 Case Assembly, Assembly A

    2. Refer to Figure, Figure and Figure.

      1. CAUTION

        DO NOT DAMAGE THE CASE ASSEMBLY.

        Drill out the rivets.

      2. Use a vertical drilling machine.

      3. Use a drill of diameter less than that of the rivets.

    3. Discard the borescope access port.

    1. SUBTASK 72-41-21-350-190-B00 Disassemble the Borescope Access Port from the Stage 11 Case Assembly, Assembly B

    2. Refer to Figure, Figure, Figure and Figure.

      1. CAUTION

        DO NOT DAMAGE THE CASE ASSEMBLY.

        Drill out the rivets.

      2. Use a vertical drilling machine.

      3. Use a drill of diameter less than that of the rivets.

    3. Discard the borescope access port.

    1. SUBTASK 72-41-21-350-190-C00 Disassemble the Borescope Access Port from the Stage 11 Case Assembly, Assembly C and Assembly D

      1. CAUTION

        DO NOT DAMAGE THE CASE ASSEMBLY.

        Drill out the rivets.

      2. Use a vertical drilling machine.

      3. Use a drill of diameter less than that of the rivets.

    2. Discard the borescope access port.

    1. SUBTASK 72-41-21-110-199 Clean the HP Compressor Stage 11 Case Assembly

      1. Chemically clean the case assembly.

      2. Refer to SPM TASK 70-11-03-300-503.

      3. Use chemical cleaning equipment.

    1. SUBTASK 72-41-21-220-516-A00 Examine the Rivet Holes on the HP Compressor Stage 11 Case Assembly, Assembly A

    2. Refer to Figure, Figure, Figure and Figure.

      1. Visually examine and measure the dimensions of the rivet holes.

      2. Use workshop inspection equipment.

    1. SUBTASK 72-41-21-220-516-B00 Examine the Rivet Holes on the HP Compressor Stage 11 Case Assembly, Assembly B

    2. Refer to Figure, Figure, Figure and Figure.

      1. Visually examine and measure the dimensions of the rivet holes.

      2. Use workshop inspection equipment.

    1. SUBTASK 72-41-21-220-516-C00 Examine the Rivet Holes on the HP Compressor Stage 11 Case Assembly, Assembly Cand Assembly D

      1. Visually examine and measure the dimensions of the rivet holes.

      2. Use workshop inspection equipment.

    1. SUBTASK 72-41-21-323-074-A00 Drill the Rivet Hole(s) on the Borescope Access Port and/or the HP Compressor Stage 11 Case Assembly, Assembly A

    2. Refer to Figure, Figure, Figure and Figure.

      1. Temporarily install the borescope access port on to the case assembly.

      2. Use 6A4187, Boss, borescope access port, 04-644, 1 off, with a locally made location clamp, standard workshop equipment and a dial test indicator.

      1. Use the holes on the case assembly as a template to drill the holes on the borescope access port.

      2. Use a portable drill and standard workshop equipment.

      1. If applicable, drill the damaged rivet holes in the case for larger rivets.

      2. Use a portable drill and standard workshop equipment.

    3. Remove the borescope access port from the casing.

      1. Remove the burrs.

      2. Use standard workshop equipment.

    1. SUBTASK 72-41-21-323-074-B00 Drill the Rivet Hole(s) on the Borescope Access Port and/or the HP Compressor Stage 11 Case Assembly, Assembly B

    2. Refer to Figure, Figure, Figure and Figure.

      1. Temporarily install the borescope access port on to the case assembly.

      2. Use 6A5870, Boss, borescope access port, 04-644, 1 off, with a locally made location clamp, standard workshop equipment and a dial test indicator.

      1. Use the holes on the case assembly as a template to drill the holes on the borescope access port.

      2. Use a portable drill and standard workshop equipment.

      1. If applicable, drill the damaged rivet holes in the case for larger rivets.

      2. Use a portable drill and standard workshop equipment.

    3. Remove the borescope access port from the casing.

      1. Remove the burrs.

      2. Use standard workshop equipment.

    1. SUBTASK 72-41-21-323-074-C00 Drill the Rivet Hole(s) on the Borescope Access Port and/or the HP Compressor Stage 11 Case Assembly, Assembly C and Assembly D

      1. Temporarily install the borescope access port on to the case assembly.

      2. Use 6A5870, Boss, borescope access port, 04-644, 1 off, with a locally made location clamp, standard workshop equipment and a dial test indicator.

      1. Use the holes on the case assembly as a template to drill the holes on the borescope access port.

      2. Use a portable drill and standard workshop equipment.

      1. If applicable, drill the damaged rivet holes in the case for larger rivets.

      2. Use a portable drill and standard workshop equipment.

    2. Remove the borescope access port from the casing.

      1. Remove the burrs.

      2. Use standard workshop equipment.

    1. SUBTASK 72-41-21-220-517-A00 Examine the HP Compressor Stage 11 Case Assembly, Assembly A

    2. Refer to Figure, Figure, Figure and Figure.

      1. Visually examine and measure the dimensions of the rivet holes.

      2. Use workshop inspection equipment.

    1. SUBTASK 72-41-21-220-517-B00 Examine the HP Compressor Stage 11 Case Assembly, Assembly B

    2. Refer to Figure, Figure, Figure and Figure.

      1. Visually examine and measure the dimensions of the rivet holes.

      2. Use workshop inspection equipment.

    1. SUBTASK 72-41-21-220-517-C00 Examine the HP Compressor Stage 11 Case Assembly, Assembly C and Assembly D

      1. Visually examine and measure the dimensions of the rivet holes.

      2. Use workshop inspection equipment.

    1. SUBTASK 72-41-21-230-212 Do a Crack test

      1. Do a local penetrant crack test of the drilled holes.

      2. Refer to SPM TASK 70-23-05-230-501.

    1. SUBTASK 72-41-21-390-068-A00 Assemble the Borescope Access Port to the HP Compressor Case Assembly, Assembly A

    2. Refer to Figure, Figure, Figure, Figure and Figure.

      1. Assemble the HP Compressor Stage 11 Case Assembly, borescope access port and rivets.

      2. Use AS16688, rivet, solid CSK head, 04-642, 4 and/or solid CSK head (oversize), 04-643, 4, as required, and 6A187, boss, borescope access port, 04-644, 1 off.

      3. Use standard workshop equipment.

      1. Cold squeeze the rivets.

      2. Refer to SPM TASK 70-39-03-390-501.

      3. Use cold squeezing rivet equipment.

    1. SUBTASK 72-41-21-390-068-B00 Assemble the Borescope Access Port to the HP Compressor Case Assembly, Assembly B

      1. Assemble the HP Compressor Stage 11 Case Assembly, borescope access port and rivets.

      2. Use AS16688, rivet, solid CSK head, 04-642, 4 and/or solid CSK head (oversize), 04-643, 4, as required, and 6A187, boss, borescope access port, 04-644, 1 off.

      3. Use standard workshop equipment.

      1. Cold squeeze the rivets.

      2. Refer to SPM TASK 70-39-03-390-501.

      3. Use cold squeezing rivet equipment.

    1. SUBTASK 72-41-21-390-068-C00 Assemble the Borescope Access Port to the HP Compressor Case Assembly, Assembly C and Assembly D

      1. Assemble the HP Compressor Stage 11 Case Assembly, borescope access port and rivets.

      2. Use AS16688, rivet, solid CSK head, 04-642, 4 and/or solid CSK head (oversize), 04-643, 4 as required, and 6A187, boss, borescope access port, 04-644, 1 off.

      3. Use standard workshop equipment.

      1. Cold squeeze the rivets.

      2. Refer to SPM TASK 70-39-03-390-501.

      3. Use cold squeezing rivet equipment.

    1. SUBTASK 72-41-21-230-213 Do a Crack Test

      1. Do a penetrant crack test on the rivets.

      2. Refer to SPM TASK 70-23-05-230-501.

      3. Cracks are not permitted.

    1. SUBTASK 72-41-21-220-518-A00 Examine the HP Compressor Stage 11 Case Assembly, Assembly A

      1. Visually examine and measure the dimensions of the assembly.

      2. Refer to SPM TASK 70-39-03-390-501, SUBTASK 70-39--03-390-005.

      3. Use workshop inspection equipment.

    1. SUBTASK 72-41-21-220-518-B00 Examine the HP Compressor Stage 11 Case Assembly, Assembly B

      1. Visually examine and measure the dimensions of the assembly.

      2. Refer to SPM TASK 70-39-03-390-501, SUBTASK 70-39--03-390-005.

      3. Use workshop inspection equipment.

    1. SUBTASK 72-41-21-220-518-C00 Examine the HP Compressor Stage 11 Case Assembly, Assembly C and Assembly D

      1. Visually examine and measure the dimensions of the assembly.

      2. Refer to SPM TASK 70-39-03-390-501, SUBTASK 70-39-03-390-005.

      3. Use workshop inspection equipment.

    1. SUBTASK 72-41-21-350-191 Identify the Repair

      1. Make a mark VRS6352/1 adjacent to the assembly number when the borescope access port has been replaced.

      2. Refer to SPM TASK 70-09-00-400-501, SUBTASK 70-09-00-400-501.

      3. Use vibro-engraving equipment.

    1. SUBTASK 72-41-21-350-192 Remove Damaged Rivets

      1. CAUTION

        DO NOT DAMAGE THE BORESCOPE ACCESS PORT OR THE CASE ASSEMBLY.

        NOTE

        The SUBTASKS which follow must only be used to replace damaged rivet(s).

        Drill out the damaged rivet(s).

      2. Use a vertical drilling machine.

      3. Use a drill of a diameter less than that of the rivet(s).

      1. Remove burrs.

      2. Use standard workshop equipment.

    1. SUBTASK 72-41-21-220-519-A00 Examine the HP Compressor Stage 11 Case Assembly, Assembly A

    2. Refer to Figure, Figure, Figure and Figure.

      1. Visually examine and measure the dimensions of the rivet hole(s).

      2. Use workshop inspection equipment.

    1. SUBTASK 72-41-21-220-519-B00 Examine the HP Compressor Stage 11 Case Assembly, Assembly B

    2. Refer to Figure, Figure, Figure and Figure.

      1. Visually examine and measure the dimensions of the rivet hole(s).

      2. Use workshop inspection equipment.

    1. SUBTASK 72-41-21-220-519-C00 Examine the HP Compressor Stage 11 Case Assembly, Assembly C and Assembly D

      1. Visually examine and measure the dimensions of the rivet hole(s).

      2. Use workshop inspection equipment.

    1. SUBTASK 72-41-21-323-075-A00 Drill the Damaged Rivet Hole(s), Assembly A

    2. Refer to Figure, Figure, Figure and Figure.

      1. Drill the damaged rivet hole(s) in the stage 11 case assembly and borescope access port for larger rivet(s).

      2. Use a vertical drilling machine and standard workshop equipment.

      1. Remove the burrs.

      2. Use standard workshop equipment.

    1. SUBTASK 72-41-21-323-075-B00 Drill the Damaged Rivet Hole(s), Assembly B

    2. Refer to Figure, Figure, Figure and Figure.

      1. Drill the damaged rivet hole(s) in the stage 11 case assembly and borescope access port for larger rivet(s).

      2. Use a vertical drilling machine and standard workshop equipment.

      1. Remove the burrs.

      2. Use standard workshop equipment.

    1. SUBTASK 72-41-21-323-075-C00 Drill the Damaged Rivet Hole(s), Assembly C and Assembly D

      1. Drill the damaged rivet hole(s) in the stage 11 case assembly and borescope access port for larger rivet(s).

      2. Use a vertical drilling machine and standard workshop equipment.

      1. Remove the burrs.

      2. Use standard workshop equipment.

    1. SUBTASK 72-41-21-20-051-A00 Examine the Rivet Hole(s), Assembly A

    2. Refer to Figure, Figure, Figure and Figure.

      1. Visually examine and measure the dimensions of the rivet hole(s).

      2. Use workshop inspection equipment.

      1. Identify which holes have been drilled for the larger rivets.

      2. Refer to SPM TASK 70-09-01-400-501.

    1. SUBTASK 72-41-21-220-051-B00 Examine the Rivet Hole(s), Assembly B

    2. Refer to Figure, Figure, Figure and Figure.

      1. Visually examine and measure the dimensions of the rivet hole(s).

      2. Use workshop inspection equipment.

      1. Identify which holes have been drilled for the larger rivets.

      2. Refer to SPM TASK 70-09-01-400-501.

    1. SUBTASK 72-41-21-220-051-C00 Examine the Rivet Hole(s), Assembly C and Assembly D

      1. Visually examine and measure the dimensions of the rivet hole(s).

      2. Use workshop inspection equipment.

      1. Identify which holes have been drilled for the larger rivets.

      2. Refer to SPM TASK 70-09-01-400-501.

    1. SUBTASK 72-41-21-230-214 Do a Crack Test

      1. Do a local penetrant crack test on the rivet hole(s).

      2. Refer to SPM TASK 70-23-05-230-501.

      3. Cracks are not permitted.

    1. SUBTASK 72-41-21-390-069-A00 Install the Rivet(s), Assembly A

      1. Assemble the HP Compressor Stage 11 Case Assembly, borescope access port and rivets.

      2. Use AS16688, rivet, solid CSK head, 04-642, 4 off, and/or AS16729, solid CSK head (oversize), 04-643, 4 off, as required.

      3. Use standard workshop equipment.

      1. Cold squeeze the rivets.

      2. Refer to SPM TASK 70-39-03-390-501.

      3. Use cold squeeze riveting equipment.

    1. SUBTASK 72-41-21-390-069-B00 Install the Rivet(s), Assembly B

      1. Assemble the HP Compressor Stage 11 Case Assembly, borescope access port and rivets.

      2. Use AS16688, rivet, solid CSK head, 04-642, 4 off, and/or AS16729, solid CSK head (oversize), 04-643, 4 off, as required.

        Use standard workshop equipment.

      1. Cold squeeze the rivets.

      2. Refer to SPM TASK 70-39-03-390-501.

      3. Use cold squeeze riveting equipment.

    1. SUBTASK 72-41-21-390-069-C00 Install the Rivet(s), Assembly C and Assembly D

      1. Assemble the HP Compressor Stage 11 Case Assembly, borescope access port and rivets.

      2. Use AS16688, rivet, solid CSK head, 04-642, 4, and/or AS16729, solid CSK head (oversize), 04-643, 4, as required.

      3. Use standard workshop equipment.

      1. Cold squeeze the rivets.

      2. Refer to SPM TASK 70-39-03-390-501.

      3. Use cold squeeze riveting equipment.

    1. SUBTASK 72-41-21-230-215 Do a Crack Test

      1. Do a local penetrant crack test on the rivet hole(s).

      2. Refer to SPM TASK 70-23-05-230-501.

      3. Cracks are not permitted.

    1. SUBTASK 72-41-21-220-520-A00 Examine the HP Compressor Stage 11 Case Assembly, Assembly A

      1. Visually examine and measure the dimensions of the assembly.

      2. Refer to SPM TASK 70-39-03-390-501, SUBTASK 70-39-03-390-005.

      3. Use workshop inspection equipment.

    1. SUBTASK 72-41-21-2200-520-B00 Examine the HP Compressor Stage 11 Case Assembly, Assembly B

      1. Visually examine and measure the dimensions of the assembly.

      2. Refer to SPM TASK 70-39-03-390-501, SUBTASK 70-39-03-390-005.

      3. Use workshop inspection equipment.

    1. SUBTASK 72-41-21-220-520-C00 Examine the HP Compressor Stage 11 Case Assembly, Assembly C and Assembly D

      1. Visually examine and measure the dimensions of the assembly.

      2. Refer to SPM TASK 70-39-03-390-501, SUBTASK 70-39-03-390-005.

      3. Use workshop inspection equipment.

    1. SUBTASK 72-41-21-350-193 Identify the Repair

      1. Make a mark VRS6352/2 adjacent to the assembly number when the borescope access port has been replaced.

      2. Refer to SPM TASK 70-09-00-400-501, SUBTASK 70-09-00-400-501.

      3. Use vibro-engraving equipment.

  1. 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 - Assembly A, Assembly B and Assembly C

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

    Figure: Repair Details and Dimensions - Assembly D

    Repair Details and Dimensions - Assembly D

    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 And Assembly D

    Repair Details and Dimensions - Assembly C And Assembly D

    Figure: Repair Details and Dimensions - Assembly A

    Repair Details and Dimensions - Assembly A

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

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

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

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

    Figure: Repair Details and Dimensions - Assembly A

    Repair Details and Dimensions - Assembly A

    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 D

    Repair Details and Dimensions - Assembly D

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Corrected link for SPM Task 70-11-03-300-503 per REA17VC131

Link not Found
Manufacturer Code:IE304
Enterprise Name:DELETED
BU Name:DELETED,SEE CAGE CODE 0V6W9
Manufacturer Code:K6835
Enterprise Name:MED-LAB LTD
BU Name:MED-LAB LTD
Street:COPELAND ST
City:DERBY
Zip Code:DE1 2PU
Country:GREAT BRITAIN
Phone Number:44-1332-349094
Fax Number:44-1332-371237
Email:sales@med-lab.co.uk
Internet:www.med-lab.co.uk
Manufacturer Code:LOCAL
Enterprise Name:LOCALLY SUPPLIED
Link not Found
Link not Found
Link not Found
Link not Found
Manufacturer Code:IE304
Supply Number:CoMat 02-121
Type:sp01
Supply Short Name:CoMat 02-121 TEMPORARY MARKER PENCIL/CRAYON
Supply Name:CoMat 02-121 TEMPORARY MARKER PENCIL/CRAYON
Specification Groups:
Doc NumberType
OMAT: 261BEROL VERITHIN (HARD TYPE)
Suppliers:
ManufacturerRemarks
IE304
K5720
K6835
LOCAL
Manufacturer Code:K6835
Supply Number:CoMat 02-122
Type:sp01
Supply Short Name:CoMat 02-122 TEMPORARY MARKER PENCIL/CRAYON
Supply Name:CoMat 02-122 TEMPORARY MARKER PENCIL/CRAYON
Specification Groups:
Doc NumberType
DELETED
Suppliers:
ManufacturerRemarks
K6835
IE133
Manufacturer Code:X222X
Supply Number:CoMat 06-022
Type:sp01
Supply Short Name:CoMat 06-022 FLUORESCENT PENETRANT (POST-EMULSIFIED ULTRA HIGH SENSITIVITY)
Supply Name:CoMat 06-022 FLUORESCENT PENETRANT (POST-EMULSIFIED ULTRA HIGH SENSITIVITY)
Specification Groups:
Doc NumberType
ARDROX 985-P14 OMAT: 652 (CHEMETALL OAKITE 985-P14)It is not permitted to mix the selected CoMat 06‐022 letter suffix material with other CoMat 06‐022 letter suffix materials. Where CoMat 06‐022 is specified with no suffix, use one of the CoMat 06‐ 022 letter suffix materials.
Suppliers:
ManufacturerRemarks
X222X
Manufacturer Code:LOCAL
Tool Number:Chemical cleaning equipment
Tool Name:Chemical cleaning equipment
Manufacturer Code:LOCAL
Tool Number:Cold squeeze riveting equipment
Tool Name:Cold squeeze riveting equipment
Manufacturer Code:LOCAL
Tool Number:Dial indicator
Tool Name:Dial indicator
Manufacturer Code:LOCAL
Tool Number:Drill
Tool Name:Drill
Manufacturer Code:LOCAL
Tool Number:Penetrant crack test equipment
Tool Name:Penetrant Crack Test Equipment
Link not Found
Manufacturer Code:LOCAL
Tool Number:Vertical drilling machine
Tool Name:Vertical drilling machine
Link not Found
Manufacturer Code:LOCAL
Tool Number:Workshop inspection equipment
Tool Name:Workshop inspection equipment