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 72-41-21-300-028 HPC Stage 9 Case - Replace The Intrascope Access Port And/or Rivet(s), Repair-028 (VRS6162)
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 | SYMBOL | MATERIAL |
|---|---|---|
HP Compressor, Stage 9 Case Assembly | QRK | Nickel, Cobalt Alloy |
Boss, intrascope access port | EAK | Corrosion Resistant Steel |
Rivet, solid | QBE or QPK | Nimonic 75 |
General
This Repair must only be done when the instruction to do so is given in TASK 72-41-21-200-000 (INSPECTION/CHECK-000).
This repair replaces any rivet(s) or a damaged intrascope access port, in the HP Compressor Stage 9 Case Assembly.
When the intrascope access port is to be replaced, do SUBTASK 72-41-21-323-054.
When any of the rivet(s), which secure the intrascope access port, are to be replaced, do Step.
The practices and processes referred to in the procedure by the TASK/SUBTASK numbers are given 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:
NOTE
Preliminary Requirements
Pre-Conditions
NONESupport Equipment
| Name | Manufacturer | Part Number / Identification | Quantity | Remark |
|---|---|---|---|---|
| Vertical drilling machine | LOCAL | Vertical drilling machine | ||
| Chemical cleaning equipment | LOCAL | Chemical cleaning equipment | ||
| Standard workshop equipment | LOCAL | Standard workshop equipment | ||
| Workshop inspection equipment | LOCAL | Workshop inspection equipment | ||
| Dial indicator | LOCAL | Dial indicator | ||
| Drill | LOCAL | Drill | ||
| Penetrant Crack Test Equipment | LOCAL | Penetrant crack test equipment | ||
| Cold squeeze riveting equipment | LOCAL | Cold squeeze riveting equipment | ||
| Vibrating marking pencil | LOCAL | Vibrating marking pencil | ||
| Location clamp | LOCAL | Location clamp | locally made |
Consumables, Materials and Expendables
| Name | Manufacturer | Part Number / Identification | Quantity | Remark |
|---|---|---|---|---|
| CoMat 02-121 TEMPORARY MARKER PENCIL/CRAYON | IE304 | CoMat 02-121 | ||
| CoMat 02-122 TEMPORARY MARKER PENCIL/CRAYON | K6835 | CoMat 02-122 | ||
| CoMat 06-022 FLUORESCENT PENETRANT (POST-EMULSIFIED ULTRA HIGH SENSITIVITY) | LOCAL | CoMat 06-022 |
Spares
| Name | Manufacturer | Part Number / Identification | Quantity | Remark |
|---|---|---|---|---|
| RIVET - SOLID, COUNTERSUNK HEAD | U1653 | AS16688 | 4 | Assembly A, B, C and D 03-842 |
| RIVET - SOLID, COUNTERSUNK HEAD | U1653 | AS16729 | 4 | Assembly A, B, C and D 03-843 |
| BOSS - INTRASCOPE ACCESS PORT | 0AM53 | 6A5451 | 1 | Assembly A 03-844 |
| Adaptor, intrascope access port | LOCAL | 6A5948 | 1 | Assembly B, C and D 03-844 |
Safety Requirements
NONEProcedure
Use a Vertical drilling machine, with a drill of a diameter less than that of the rivets.

CAUTION
DO NOT DAMAGE THE HP COMPRESSOR STAGE 9 CASE ASSEMBLY.NOTE
The SUBTASKS which follow must only be used to replace a damaged intrascope access port.Drill out the rivets.
SUBTASK 72-41-21-323-054-A00 Disassemble the Intrascope Access Port from the HP Compressor Stage 9 Case Assembly, Assembly A
Use a Vertical drilling machine, with a drill of a diameter less than that of the rivets.

CAUTION
DO NOT DAMAGE THE HP COMPRESSOR STAGE 9 CASE ASSEMBLY.NOTE
The SUBTASKS which follow must only be used to replace a damaged intrascope access port.Drill out the rivets.
SUBTASK 72-41-21-323-054-B00 Disassemble the Intrascope Access Port from the HP Compressor Stage 9 Case Assembly, Assembly B
Use a Vertical drilling machine, with a drill of a diameter less than that of the rivets.

CAUTION
DO NOT DAMAGE THE HP COMPRESSOR STAGE 9 CASE ASSEMBLY.NOTE
The SUBTASKS which follow must only be used to replace a damaged intrascope access port.Drill out the rivets.
SUBTASK 72-41-21-323-054-C00 Disassemble the Intrasope Access Port From the HP Compressor Stage 9 Case Assembly C and Assembly D
Refer to SPM TASK 70-11-03-300-503.
Chemically clean the Case Assembly.
SUBTASK 72-41-21-110-160 Clean the HP Compressor Stage 9 Case Assembly
Refer to SPM TASK 70-09-01-400-501.
Identify the damaged holes.
SUBTASK 72-41-21-220-386-A00 Examine the Rivet Holes in the HP Compressor Stage 9 Case Assembly, Assembly A
Refer to SPM TASK 70-09-01-400-501.
Identify the damaged holes.
SUBTASK 72-41-21-220-386-B00 Examine the Rivet Holes in the HP Compressor Stage 9 Case Assembly, Assembly B
Refer to SPM TASK 70-09-01-400-501.
Identify the damaged holes.
SUBTASK 72-41-21-220-386-C00 Examine the Rivet Holes in the HP Compressor Stage 9 Case Assembly, Assembly C and Assembly D
Use 6A5451 BOSS - INTRASCOPE ACCESS PORT, 03-844, 1 off, with a Location clamp, Standard workshop equipment and a Dial indicator.
Make sure the intrascope access port hole is in line with the hole in the case assembly.
Temporarily install the intrascope access port on to the Case Assembly.
Use a Drill and Standard workshop equipment.
Use the holes on the case as a template to drill the holes on the intrascope access port.
Use a Drill and Standard workshop equipment.
If necessary, drill the damaged rivet holes in the case for the larger rivets.
SUBTASK 72-41-21-323-055-A00 Drill the Rivet Hole(s), in the Intrascope Access Port and/or the HP Compressor Stage 9 Case Assembly, Assembly A
Use 6A5948 , 03-844, 1 off, with a Location clamp, Standard workshop equipment and a Dial indicator.
Make sure the intrascope access port hole is in line with the hole in the case assembly.
Temporarily install the intrascope access port on to the case assembly.
Use a Drill and Standard workshop equipment.
Use the holes on the case as a template to drill the holes on the intrascope access port.
Use a Drill and Standard workshop equipment.
If necessary, drill the damaged rivet holes in the case for the larger rivets.
SUBTASK 72-41-21-323-055-B00 Drill the Rivet Hole(s), in the Intrascope Access Port and/or the HP Compressor Stage 9 Case Assembly, Assembly B
Use 6A5948 , 03-844, 1 off, with a Location clamp, Standard workshop equipment and a Dial indicator.
Make sure the intrascope access port is in line with the hole in the case assembly.
Temporarily install the intrascope access port on to the case assembly.
Use a Drill and Standard workshop equipment.
Use the holes on the case as a template to drill the holes on the intrascope access port.
Use a Drill and Standard workshop equipment.
If necessary, drill the damaged rivet holes in the case for the larger rivets.
SUBTASK 72-41-21-323-055-C00 Drill the Rivet Hole(s), in the Intrascope Access Port and/or the HP Compressor Stage 9 Case Assembly, Assembly C, and Assembly D
Refer to SPM TASK 70-23-05-230-501.
Cracks are not permitted.
Do a local penetrant crack test of the drilled holes.
SUBTASK 72-41-21-230-154 Do a Crack Test
Use AS16688 RIVET - SOLID, COUNTERSUNK HEAD, 03-842, 4 off and/or AS16729 RIVET - SOLID, COUNTERSUNK HEAD, 03-843, 4 off, as necessary and 6A5451 BOSS - INTRASCOPE ACCESS PORT, 03-844, 1 off.
Assemble the HP Compressor Stage 9 Case Assembly, the intrascope access port and the rivets.
Refer to SPM TASK 70-39-03-390-501.
Cold squeeze the rivets.
SUBTASK 72-41-21-390-055-A00 Assemble the Intrascope Access Port to the HP Compressor Stage 9 Case Assembly, Assembly A
Use AS16688 RIVET - SOLID, COUNTERSUNK HEAD, 03-842, 4 off and/or AS16729 RIVET - SOLID, COUNTERSUNK HEAD, 03-843, 4 off, as necessary and 6A5948 , 03-844, 1 off.
Assemble the HP Compressor Stage 9 Case Assembly, the intrascope access port and the rivets.
Refer to SPM TASK 70-39-03-390-501.
Cold squeeze the rivets.
SUBTASK 72-41-21-390-055-B00 Assemble the Intrascope Access Port to the HP Compressor Stage 9 Case Assembly, Assembly B
Use AS16688 RIVET - SOLID, COUNTERSUNK HEAD, 03-842, 4 off and/or AS16729 RIVET - SOLID, COUNTERSUNK HEAD, 03-843, 4 off, as necessary and 6A5948 , 03-844, 1 off.
Assemble the HP Compressor Stage 9 Case Assembly, the intrascope access port and the rivets.
Refer to SPM TASK 70-39-03-390-501.
Cold squeeze the rivets.
SUBTASK 72-41-21-390-055-C00 Assemble the Intrascope Access Port to the HP Compressor Stage 9 Case Assembly, Assembly C and Assembly D
Refer to SPM TASK 70-23-05-230-501.
Use CoMat 06-022 FLUORESCENT PENETRANT (POST-EMULSIFIED ULTRA HIGH SENSITIVITY) with penetrant crack test equipment.
Discard cracked rivet(s).
Do a local penetrant crack test on the new rivets.
SUBTASK 72-41-21-230-155 Do a Crack Test
Refer to SPM TASK 70-39-03-390-501, SUBTASK 70-39-03-390-005.
Visually examine and measure the dimensions of the assembly.
SUBTASK 72-41-21-220-388-A00 Examine the HP Compressor Stage 9 Case Assembly, Assembly A
Refer to SPM TASK 70-39-03-390-501, SUBTASK 70-39-03-390-005.
Visually examine and measure the dimensions of the assembly.
SUBTASK 72-41-21-220-388-B00 Examine the HP Compressor Stage 9 Case Assembly, Assembly B
Refer to SPM TASK 70-39-03-390-501, SUBTASK 70-39-03-390-005.
Visually examine and measure the dimensions of the assembly.
SUBTASK 72-41-21-220-388-C00 Examine the HP Compressor Stage 9 Case Assembly, Assembly C and Assembly D
Refer to SPM TASK 70-09-00-400-501, SUBTASK 70-09-00-400-001.
Mark VRS6162/1 adjacent to the assembly number, when a damaged intrascope access port is replaced.
SUBTASK 72-41-21-350-146 Identify the Repair
Use a Vertical drilling machine, with a drill of a diameter less than that of the rivet(s).

CAUTION
DO NOT DAMAGE THE INTRASCOPE ACCESS PORT OR THE HP COMPRESSOR STAGE 9 CASE ASSEMBLY.NOTE
The SUBTASKS which follow must only be used to replace loose and/or damaged rivet(s).Drill out the loose and/or damaged rivet(s).
SUBTASK 72-41-21-323-056 Remove Loose and/or Damaged Rivet(s)
Refer to SPM TASK 70-09-01-400-501.
Identify the damaged hole(s).
SUBTASK 72-41-21-220-389-A00 Examine the Rivet Holes in the HP Compressor Stage 9 Case Assembly, Assembly A
Refer to SPM TASK 70-09-01-400-501.
Identify the damaged hole(s).
SUBTASK 72-41-21-220-389-B00 Examine the Rivet Hole(s) in the HP Compressor Stage 9 Case Assembly, Assembly B
Refer to SPM TASK 70-09-01-400-501.
Identify the damaged hole(s).
SUBTASK 72-41-21-220-389-C00 Examine the Rivet Hole(s) in the HP Compressor Stage 9 Case Assembly, Assembly C and Assembly D
Use a Vertical drilling machine, with the correct size drill, to suit the larger size rivet(s), as necessary.
Drill damaged rivet hole(s) to suit the larger rivet(s), as necessary.
SUBTASK 72-41-21-323-078-A00 Drill the Rivet Hole(s), Assembly A
NOTE
Only do this SUBTASK if larger rivet(s) are to be installed.Use a Vertical drilling machine, with the correct size drill, to suit the larger size rivet(s), as necessary.
Drill damaged rivet hole(s) to suit the larger rivet(s), as necessary.
SUBTASK 72-41-21-323-078-B00 Drill the Rivet Hole(s), Assembly B
NOTE
Only do this SUBTASK if larger rivet(s) are to be installed.Use a Vertical drilling machine, with the correct size drill, to suit the larger size rivet(s), as necessary.
Drill the damaged rivet hole(s) to suit the larger rivet(s), as necessary.
SUBTASK 72-41-21-323-078-C00 Drill the Rivet Hole(s), Assembly C and Assembly D
NOTE
Only do this SUBTASK if larger rivet(s) are to be installed.Refer to SPM TASK 70-09-01-400-501.
Identify holes that have been drilled for the larger rivets.
SUBTASK 72-41-21-220-390-A00 Examine the Rivet Hole(s), Assembly A
Refer to SPM TASK 70-09-01-400-501.
Identify holes that have been drilled for the larger rivets.
SUBTASK 72-41-21-220-390-B00 Examine the Rivet Hole(s), Assembly B
Refer to SPM TASK 70-09-01-400-501.
Identify holes that have been drilled for the larger rivets.
SUBTASK 72-41-21-220-390-C00 Examine the Rivet Hole(s), Assembly C and Assembly D
Refer to SPM TASK 70-23-05-230-501.
Cracks are not permitted.
Do a local penetrant crack test of the drilled holes.
SUBTASK 72-41-21-230-156 Do a Crack Test
Use AS16688 RIVET - SOLID, COUNTERSUNK HEAD, 03-842, 4 off and /or AS16729 RIVET - SOLID, COUNTERSUNK HEAD, 03-843, 4 off, as necessary and 6A5451 BOSS - INTRASCOPE ACCESS PORT, 03-844, 1 off.
Assemble the HP Compressor Stage 9 Case Assembly, intrascope access port and rivets.
Refer to SPM TASK 70-39-03-390-501.
Cold squeeze the rivets.
SUBTASK 72-41-21-390-056-A00 Install the Rivet(s), Assembly A
Use AS16688 RIVET - SOLID, COUNTERSUNK HEAD, 03-842, 4 off and/or AS16729 RIVET - SOLID, COUNTERSUNK HEAD, 03-843, 4 off, as necessary and 6A5948 , 03-844, 1 off.
Assemble the HP Compressor Stage 9 Case Assembly, intrascope access port and rivets.
Refer to SPM TASK 70-39-03-390-501.
Cold squeeze the rivets.
SUBTASK 72-41-21-390-056-B00 Install the Rivet(s), Assembly B
Use AS16688 RIVET - SOLID, COUNTERSUNK HEAD, 03-842, 4 off and/or AS16729 RIVET - SOLID, COUNTERSUNK HEAD, 03-843, 4 off, as necessary and 6A5948 , 03-844, 1 off.
Assemble the HP Compressor Stage 9 Case Assembly, intrascope access port and rivets.
Refer to SPM TASK 70-39-03-390-501.
Cold squeeze the rivets.
SUBTASK 72-41-21-390-147-C00 Install the Rivet(s), Assembly C and Assembly D
Refer to SPM TASK 70-23-05-230-501.
Discard cracked rivet(s).
Do a local penetrant crack test on the new rivets.
SUBTASK 72-41-21-230-061 Do a Crack Test
Refer to SPM TASK 70-39-03-390-501, SUBTASK 70-39-03-390-005
Visually examine and measure the dimensions of the assembly.
SUBTASK 72-41-21-220-460-A00 Examine the HP Compressor Stage 9 Case Assembly, Assembly A
Refer to SPM TASK 70-39-03-390-501, SUBTASK 70-39-03-390-005.
Visually examine and measure the dimensions of the assembly.
SUBTASK 72-41-21-220-460-B00 Examine the HP Compressor Stage 9 Case Assembly, Assembly B
Refer to SPM TASK 70-39-03-390-501, SUBTASK 70-39-03-390-005.
Visually examine and measure the dimensions of the assembly.
SUBTASK 72-41-21-220-460-C00 Examine the HP Compressor Stage 9 Case Assembly, Assembly C and Assembly D
Refer to SPM TASK 70-09-00-400-501, SUBTASK 70-09-00-400-001.
Mark VRS6162/2, adjacent to the assembly number when the damaged rivet(s) is/are replaced.
SUBTASK 72-41-21-350-148 Identify the Repair
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

