TASK 72-44-30-300-020 Inner Combustion Chamber Liner - Weld Repair At Row 5 And The Rear Flange - Repair-020 (VRS3745)

DMC:V2500-A0-72-44-3001-02A-627A-C|Issue No:003.00|Issue Date:2019-11-01

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 72-44-30-300-020 Inner Combustion Chamber Liner - Weld Repair At Row 5 And The Rear Flange - Repair-020 (VRS3745)

Effectivity

FIG/ITEM

PART NO.

01-401

2A0549-01

01-401

2A1374

01-401

2A1398

01-401

2A1617

01-401

2A2034

01-401

2A2034-001

01-401

2A2722-01

01-401

2A2838-01

01-401

2A3344-01

01-401

2A3344-001

01-401

2A3344-002

01-401

2A3344-003

01-401

2A3344-004

01-401

2A3344-005

01-401

2A3344-006

01-401

2A3344-007

01-401

2A3351-01

01-401

2A3351-003

01-401

2A3351-004

01-401

2A4283-01

01-401

2A4311-01

01-401

2A4313-01

01-401

2A4315-01

01-401

2A4315-001

01-420

2A2718-01

Material of component

DESPCRIPTION

SYMBOL

MATERIAL

Combustion Chamber Inner Liner

-

Nickel Alloy

General

Price and availability - refer to IAE.

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

NOTE

Refer to the PCI for the identification of the consumable materials.

Preliminary Requirements

Pre-Conditions

Action/ConditionData Module/Technical Publication
Make sure that all the cleaning and inspection procedures are done before this repair.
Remove the liner segmentTASK 72-44-30-300-001
Remove the gangnut channelsTASK 72-44-30-300-003
If present, remove the plasma coat on the rear flange-to-vane platform seal faceTASK 72-44-30-300-002
If present, remove the plasma coat on the rear mount flangeTASK 72-44-30-300-004
If present, remove the plasma coat on the front outside diameter sealTASK 72-44-30-300-007
If present, remove the plasma coat on the rear flange inside diameterTASK 72-44-30-300-008
If present, remove the plasma coat on the front outside diameter sealTASK 72-44-30-300-014

Support Equipment

NONE

Consumables, Materials and Expendables

NameManufacturerPart Number / IdentificationQuantityRemark
CoMat 03-197 WELDING FILLER WIRELOCALCoMat 03-197
CoMat 03-287 WELDING FILLER WIRELOCALCoMat 03-287

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-44-30-370-065 Solution Heat Treat the Combustion Chamber Inner Liner

      1. Perform a solution heat treatment of the part by Cycle 22 except use argon or vacuum atmosphere only.

      1. Refer to SPM TASK 70-37-24-370-501.

    2. SUBTASK 72-44-30-230-070 Examine the Damaged Combustion Chamber Inner Liner

      1. Fluorescent Penetrant Inspect the Combustion Chamber Liner.

    3. SUBTASK 72-44-30-350-221 Rout the Repair Area

    1. Refer to Figure.

    2. Rout to remove cracks from the repair area(s) on the Row 5 Trailing Edge and/or the Rear Flange.

    4. SUBTASK 72-44-30-230-071 Examine the Damaged Combustion Chamber Inner Liner

      1. Local Fluorescent Penetrant Inspect the Repair Area.

      1. Refer to SPM TASK 70-23-05-230-501. Use High Sensitivity.

    5. SUBTASK 72-44-30-380-010 Prepare the Repair Area(s) For Weld

    1. Refer to Figure.

      2. Use rotary austenitic stainless steel wire brush or silicon carbide abrasive wheels to remove oxides and prepare the repair area(s) for weld.

      1. Refer to SPM TASK 70-31-03-310-501.

      3. Clean the Repair Area(S) by Solvent Wipe Method.

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

    6. SUBTASK 72-44-30-310-058 Weld Repair the Inner Liner

      1. Refer to Figure and Figure.

        1. Weld the repair area(s) by IAE 16-3. Use Manual Gas Tungsten Arc Weld Method (GTAW-MA). Use the applicable weld wire as per Figure.

        1. Refer to SPM TASK 70-31-13-310-501.

        2. No weld is allowed within 0.030 in. (0.762 mm) axially from the cooling holes.

    7. SUBTASK 72-44-30-370-065 Solution Heat Treat the Combustion Chamber Inner Liner

      1. Perform a solution heat treatment of the part by Cycle 22 except use Argon or Vacuum atmosphere only.

      1. Refer to SPM TASK 70-37-24-370-501.

    8. SUBTASK 72-44-30-320-008 Finish the Repair Area

      1. Finish flushed the weld at the Row 5 trailing edge and the Rear Flange Faces.

      1. Ensure that the surface is smooth and with no mismatch between the repaired surface and adjacent non-repaired surface.

      2. Refer to SPM TASK 70-31-13-310-501.

    9. SUBTASK 72-44-30-220-103 Dimensionally Inspect the Combustor Inner Liner Shell Row 5

      1. Refer to Figure and Figure.

        1. If the part does not meet dimensional requirements of Figure and Figure, restore the Inner Combustion Chamber Liner Shell by the applicable dimensional restoration repairs. (Refer to Repair, VRS3265 TASK 72-44-30-300-002 (REPAIR-002), Repair, VRS3170 TASK 72-44-30-300-004 (REPAIR-004), Repair, VRS3266 TASK 72-44-30-300-008 (REPAIR-008), Repair, VRS3628 TASK 72-44-30-300-017 (REPAIR-017) and Repair, VRS3813 TASK 72-44-30-300-021 (REPAIR-021)).

        1. Ensure the part meets dimensional requirements of Figure and Figure after the dimensional restoration procedures.

        2. Dimensions of Figure and Figure apply before IAE-53-5 Hard face coat.

    10. SUBTASK 72-44-30-320-009 Machine the Rear Flange Boltholes

      1. Refer to Figure.

      1. If welded, machine to restore the flange holes.

    11. SUBTASK 72-44-30-220-104 Dimensionally Inspect the Combustor Inner Liner Rear Flange Boltholes

      1. Refer to Figure.

      1. Inspect the rear flange boltholes.

    12. SUBTASK 72-44-30-110-071 Clean the Combustor Inner Liner

      1. Clean the Combustor Inner Liner by Aqueous Degreasing.

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

    13. SUBTASK 72-44-30-230-072 Examine the Repaired Combustor Inner Liner

      1. Fluorescent Penetrant Inspect the Combustion Chamber Liner.

    14. Figure: Inner Combustion Chamber Assembly - Weld Repair at Row 5 and the Rear Flange (VRS3745)

    Inner Combustion Chamber Assembly - Weld Repair at Row 5 and the Rear Flange (VRS3745)

    Figure: Inner Combustion Chamber Liner - Weld Repair at Row 5 and the Rear Flange - Repair-020 (VRS3745)

    Cooling Holes, No Weld Allowed Within 0.030 Inch (0.762 mm) Of Cooling Holes

    Legend
    [1]

    Cooling Holes, No Weld Allowed Within 0.030 Inch (0.762 mm) Of Cooling Holes

    Close

    Figure: Inner Combustion Chamber Liner - Weld Repair at Row 5 and the Rear Flange - Repair-020 (VRS3745) Dimension Requirements

    0.047 - 0.078 Inch (1.194 - 1.981 mm) Radius

    Legend
    [1]

    0.047 - 0.078 Inch (1.194 - 1.981 mm) Radius

    [2]

    1.000 Inch (25.4 mm) Radius

    [3]

    21.925 - 21.945 Inch (556.895 - 557.403 mm) Diameter

    [4]

    22.174 Inch (563.22 mm) Diameter

    [5]

    29 Degrees To 33 Degrees

    [6]

    0.832 - 0.838 Inch (21.133 - 21.285 mm). Dimension Applies Before IAE 53-5 Hardface Coating.

    [7]

    0.153 in. - 0.161 in. (3.887 - 4.089 mm). Dimension Applies Before IAE 53-5 Hardface Coating.

    [8]

    20.960 - 20.980 Inch (532.384 - 532.892 mm) Diameter

    [9]

    0.090 - 0.110 Inch (2.286 - 2.794 mm)

    [10]

    0.121 - 0.126 Inch (3.074 - 3.200 mm)

    [11]

    19.392 - 19.398 Inch (492.557 - 492.709 mm) Average Diameter

    [12]

    1.630 Inches (41.402 mm)

    [13]

    21.257 Inch (539.928 mm) Diameter

    [14]

    34 Degrees 15 Minutes

    Close

    Figure: Inner Combustion Chamber Liner - Weld Repair at Row 5 and the Rear Flange - Repair-020 (VRS3745) Dimension Requirements

    For PN With Liner Shell Detail 2A2718-01 and 2A2841-01: 0.047 - 0.140 Inch (1.194 - 3.556 mm) Radius.

    Legend
    [1]

    For PN With Liner Shell Detail 2A2718-01 and 2A2841-01: 0.047 - 0.140 Inch (1.194 - 3.556 mm) Radius.

    For PN With Liner Shell Detail 2A0543-01: 0.047 - 0.078 Inch (1.194 - 1.981 mm) Radius.

    [2]

    1.000 Inch (25.4 mm) Radius

    [3]

    0.082 - 0.122 Inch (2.083 - 3.098 mm)

    [4]

    22.129 - 22.149 Inch (562.077 - 562.584 mm) Diameter

    [5]

    29 Degrees To 33 Degrees

    [6]

    0.832 - 0.838 Inch (21.133 - 21.285 mm). Dimension Applies Before IAE 53-5 Hardface Coating.

    [7]

    0.153 - 0.161 Inch (3.887 - 4.089 mm). Dimension Applies Before IAE 53-5 Hardface Coating.

    [8]

    For PN With Liner Shell Detail 2A2718-01 And 2A2841-01: 0.778 - 0.798 Inch (19.762 - 20.269 mm) Before Assembly

    For PN With Liner Shell Detail 2A0543-01: 0.782 - 0.792 Inch (19.863 - 20.116 mm) Before Assembly

    [9]

    0.090 - 0.110 Inch (2.286 - 2.794 mm)

    [10]

    0.121 - 0.126 Inch (3.074 - 3.200 mm)

    [11]

    19.392 - 19.398 Inch (492.557 - 492.709 mm) Average Diameter

    [12]

    1.630 Inches (41.402 mm)

    [13]

    21.257 Inch (539.928 mm) Diameter

    [14]

    34 Degrees 15 Minutes

    Close

    Figure: Inner Combustion Chamber Liner - Weld Repair at Row 5 and the Rear Flange - Repair-020 (VRS3745) Dimension Requirements

    0.208 - 0.228 Inch (5.284 - 5.791 mm) Diameter, 20 Holes Equally Spaced.

    Legend
    [1]

    0.208 - 0.228 Inch (5.284 - 5.791 mm) Diameter, 20 Holes Equally Spaced.

    [2]

    0.253 - 0.255 Inch (6.427 mm - 6.477 mm) Diameter

    For PN With Liner Shell Detail 2A0811-01 Is Perpendicular To Surface A Has 0.002 Inch (0.051 mm) Tolerance With Regradless Of Feature Size.

    For PN With Liner Shell Detail 2A0543-01, 2A2718-01 and 2A2841-01: PNs Have True Position Of 0.004 Inch (0.102 mm) Diametral Tolerance With Maximum Material Condition Relative To Surface A and X.

    [3]

    0.276 - 0.286 Inch (7.011 - 7.264 mm) Diameter, 40 Holes Equally Spaced.

    [4]

    9 Degrees

    [5]

    4 Degrees 30 Minutes

    [6]

    20.280 Inch (515.112 mm) Diameter

    Close

    NOTE

    Unless otherwise specified, all dimensions apply when Surface AJ is flat within 0.010 in. (0.254 mm) and Diameter AK maintains a clearance envelope of 19.391 in. (492.531 mm), in free state or constrained. Constraint contact allowed only on Surface AJ and Diameter AK.

    NOTE

    In free state Surface AJ is flat within 0.030 in. (0.762 mm) and Diameter AK is 19.372 in. - 19.418 in. (492.049 - 493.217 mm).

    NOTE

    Unless otherwise specified, all surfaces texture should be 125 micro-inches (3.175 micro-meters).

    NOTE

    Unless otherwise specified, break edges to 0.003 in. - 0.015 in. (0.077 - 0.381 mm).

    NOTE

    Unless otherwise specified, all diameter have true position at Surface A and Surface B has 0.010 in. (0.254 mm) tolerance with regardless of feature size.

Requirements After Job Completion

Follow-On Conditions

Action/ConditionData Module/Technical Publication
If removed and not re-applied in the procedure, re-apply the plasma coat on the rear flange-to-vane platform seal faceTASK 72-44-30-300-002
If removed and not re-applied in the procedure, re-apply the plasma coat on the rear mount flangeTASK 72-44-30-300-004
If removed and not re-applied in the procedure, re-apply the plasma coat on the front outside diameter sealTASK 72-44-30-300-007
If removed and not re-applied in the procedure, re-apply the plasma coat on the rear flange inside diameterTASK 72-44-30-300-008
If removed and not re-applied in the procedure, re-apply the plasma coat on the front outside diameter sealTASK 72-44-30-300-014
If (VRS3813) was performed to restore the axial dimension of the rear flange-to-vane platform seal face by welding, it is permissible not to perform dimensional restoration by plasma coatTASK 72-44-30-300-021
Install the liner segmentsTASK 72-44-30-300-001
Install the gangnut channelsTASK 72-44-30-300-003
Inspect the inner combustion chamber assemblyTASK 72-44-30-200-000
Change Type:

Revised effectivity table to add PN 2A2718-01. (19VC111)

Manufacturer Code:LOCAL
Enterprise Name:LOCALLY SUPPLIED
Manufacturer Code:LOCAL
Supply Number:CoMat 03-197
Type:sp01
Supply Short Name:CoMat 03-197 WELDING FILLER WIRE
Supply Name:CoMat 03-197 WELDING FILLER WIRE
Specification Groups:
Doc NumberType
MSRR9500/215HASTELLOY X
OMAT:3/165AMS 5798
OMAT:3/165
Suppliers:
ManufacturerRemarks
LOCAL
07098
IE508
0B491
2R602
36346
55596
57965
58401
80357
IE306
K6835
1GD26
Manufacturer Code:LOCAL
Supply Number:CoMat 03-287
Type:sp01
Supply Short Name:CoMat 03-287 WELDING FILLER WIRE
Supply Name:CoMat 03-287 WELDING FILLER WIRE
Specification Groups:
Doc NumberType
INCONEL 625 AMS 5837 AMS 5837
Suppliers:
ManufacturerRemarks
LOCAL
2R602
55596
58401