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 72-41-21-300-019 HPC Stage 11 Rotor Path Ring - Replace Lining, Repair-019 (VRS6023)
Effectivity
FIG/ITEM | PART NO. | Assembly |
|---|---|---|
04-550 | 6A3655 | A |
04-550 | 6A4297 | B |
04-350C | 6A6551 | C |
04-350D | 6A7531 | C |
04-350E | 6B1435 | D |
General
This Repair must only be done when the instruction to do so is given in 72-41-21 inspection/check.
This TASK gives the procedure to replace the damaged rotor path linings on the HP compressor stage 11 rotor path ring.
TASKS identified by SPM TASK are in the Standard Practices and Processes Manual (SPM).
Price and availability
Refer to International Aero Engines.
Related repairs - none.
NOTE
NOTE
NOTE
NOTE
Preliminary Requirements
Pre-Conditions
NONESupport Equipment
| Name | Manufacturer | Part Number / Identification | Quantity | Remark |
|---|---|---|---|---|
| Abrasive blast equipment | LOCAL | Abrasive blast equipment | ||
| Air operated grinder | LOCAL | Air operated grinder | ||
| Chemical cleaning equipment | LOCAL | Chemical cleaning equipment | ||
| Dial test indicator | LOCAL | Dial test indicator | ||
| Hardness tester | LOCAL | Hardness tester | ||
| Lathe | LOCAL | Lathe | ||
| Masking fixture | LOCAL | Masking fixture | Locally made | |
| Metal spray equipment | LOCAL | Metal spray equipment | ||
| Penetrant Crack Test Equipment | LOCAL | Penetrant crack test equipment | ||
| Rotary burr | LOCAL | Rotary burr | ||
| Vibro-engraving equipment | LOCAL | Vibro-engraving equipment | ||
| Workshop inspection equipment | LOCAL | Workshop inspection equipment | ||
| IAE 3R18232 Lifting beam | 0AM53 | IAE 3R18232 | ||
| IAE 3R18570 Turning fixture | 0AM53 | IAE 3R18570 | ||
| IAE 3R19081 Turning fixture | 0AM53 | IAE 3R19081 |
Consumables, Materials and Expendables
| Name | Manufacturer | Part Number / Identification | Quantity | Remark |
|---|---|---|---|---|
| CoMat 02-001 ADHESIVE TAPE (MASKING) | LOCAL | CoMat 02-001 | ||
| CoMat 02-006 ADHESIVE TAPE ALUMINIUM FOIL | K0993 | CoMat 02-006 | ||
| CoMat 02-198 ADHESIVE TAPE (MASKING METAL SPRAY) | LOCAL | CoMat 02-198 | ||
| CoMat 03-036 METAL SPRAYING WIRE, Ni,Al | LOCAL | CoMat 03-036 | ||
| CoMat 03-038 METAL SPRAYING POWDER NICKEL ALUMINIUM (95/5) | IE200 | CoMat 03-038 | ||
| CoMat 03-089 METAL SPRAYING POWDER Ni/Al (95/5) | 00741 | CoMat 03-089 | ||
| CoMat 03-090 METAL SPRAYING POWDER Ni/Al (95/5) | 0AM53 | CoMat 03-090 | ||
| CoMat 03-238 METAL SPRAY POWDER, Ni-Cr-Al | LOCAL | CoMat 03-238 | ||
| CoMat 05-003 ABRASIVE MEDIUM ALUMINUM OXIDE, 120/220 GRADE | LOCAL | CoMat 05-003 | ||
| CoMat 05-015 ABRASIVE MEDIUM, ALUMINUM OXIDE | LOCAL | CoMat 05-015 | ||
| CoMat 06-064 FLUORESCENT PENETRANT (WATER WASHABLE MEDIUM SENSITIVITY) | LOCAL | CoMat 06-064 |
Spares
NONESafety Requirements
NONEProcedure
Refer to Figure.
Use the IAE 3R18232 Lifting beam 1 off and IAE 3R18570 Turning fixture 1 off with a Lathe.
Set to turn correctly.
Use a Dial test indicator.
Assemble the fixture on the machine.
SUBTASK 72-41-21-325-060-A00 Remove the Abradable Lining, Assembly A
Refer to Figure.
Use IAE 3R18232 Lifting beam 1 off and IAE 3R19081 Turning fixture 1 off with a Lathe.
Set to turn correctly.
Use a Dial test indicator.
Assemble the fixture on the machine.
SUBTASK 72-41-21-325-060-B00 Remove the Abradable Lining, Assembly B
Refer to Figure.
Use a 1 off with a Lathe.
Set to turn correctly.
Use a Dial test indicator.
Assemble the fixture on the machine.
SUBTASK 72-41-21-325-060-C00 Remove the Abradable Lining, Assembly C
Refer to Figure.
Use a 1 off with a Lathe.
Set to turn correctly.
Use a Dial test indicator.
Assemble the fixture on the machine.
Turn to remove the abradable lining.
You must not remove material from the rotor path ring.
Assemble the rotor path ring on to the turning fixture and machine to remove the abradable lining.
SUBTASK 72-41-21-325-060-D00 Remove the Abradable Lining, Assembly D
Use an Air operated grinder with a Rotary burr or applicable alternatives.
You must not remove material from the rotor path ring.
Remove the lining material.
SUBTASK 72-41-21-350-067 Remove the Remaining Lining
NOTE
This SUBTASK is an alternative procedure to Step.Refer to the SPM TASK 70-33-59-300-503, SUBTASK 70-33-59-300-002.
Chemically remove the lining material.
SUBTASK 72-41-21-330-054 Remove the Remaining Lining
NOTE
This SUBTASK is an alternative procedure to Step.Refer to the SPM TASK 70-12-02-120-501.
Lightly dry blast the repaired area(s) to fully remove the lining.
SUBTASK 72-41-21-120-054 Abrasive Blast the Repair Area(s)
Refer to the SPM TASK 70-11-39-300-503, SUBTASK 70-11-39-300-001.
Swab etch the repaired area(s).
SUBTASK 72-41-21-110-127 Cold Ferric Chloride Etch
Refer to the SPM TASK 70-23-05-230-501.
No cracks are permitted.
Do a penetrant crack test of the repaired area(s).
SUBTASK 72-41-21-230-081 Do a Crack Test
Refer to the SPM TASK 70-11-03-300-503.
Chemically clean the rotor path ring.
SUBTASK 72-41-21-110-108 Clean the Rotor Path Ring
Refer to the SPM TASK 70-12-02-120-501.
Abrasive blast the area(s) to be sprayed.
SUBTASK 72-41-21-120-066 Clean the Areas to be Sprayed

CAUTION
DO NOT TOUCH AREA(S) TO BE REPAIRED AFTER THEY ARE CLEANED.
CAUTION
TOO MUCH ABRASIVE BLAST CAN CAUSE DETERIORATION OF THE REPAIRED SURFACE CONDITION AND MUST BE PREVENTED.Refer to the SPM TASK 70-34-01-340-501, SUBTASK 70-34-01-340-025 and SUBTASK 70-34-01-340-010.
For the powder feed plasma spray gun use CoMat 03-038 METAL SPRAYING POWDER NICKEL ALUMINIUM (95/5) or CoMat 03-089 METAL SPRAYING POWDER Ni/Al (95/5) or CoMat 03-090 METAL SPRAYING POWDER Ni/Al (95/5).
Alternatively for the wire feed combustion spray gun, use CoMat 03-036 METAL SPRAYING WIRE, Ni,Al.
Pre-heat the seal ring to 221 deg F to 257 deg F (105 deg C to 125 deg C).
Apply a thickness of 0.004 in. to 0.007 in. (0.10 mm to 0.18 mm).
Apply the bond coat.
Refer to the SPM TASK 70-34-01-340-501, SUBTASK 70-34-01-340-029.
Apply the abradable lining.
SUBTASK 72-41-21-340-054 Apply the Abradable Lining
Refer to the SPM TASK 70-34-01-340-501.
Visually examine the sprayed coating on the ring.
Refer to the SPM TASK 70-34-01-340-501, SUBTASK 70-34-01-340-004.
The average hardness must be 45 to 55 R15Y outer limits 40 minimum and 60 maximum.
Use a Hardness tester.
Hardness test the sprayed coating.
SUBTASK 72-41-21-220-216 Examine the Rotor Path Lining
Refer to the SPM TASK 70-09-00-400-501, SUBTASK 70-09-00-400-001.
Identify VRS6023 adjacent to the part number.
SUBTASK 72-41-21-350-070 Identify the Repair
Refer to TASK 72-41-20-440-006 (ASSEMBLY-006).
Machine and examine the rotor path ring lining.
SUBTASK 72-41-21-350-237 Machine and Examine the Rotor Path Ring Lining
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
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

