TASK 75-24-49-840-002 LPT ACC Cooling Air Ducts - Replace The Titanium Tubes, Rework-002 - SBE 75-0084

DMC:V2500-A0-75-24-4911-00A-933A-C|Issue No:003.00|Issue Date:2015-05-01

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 75-24-49-840-002 LPT ACC Cooling Air Ducts - Replace The Titanium Tubes, Rework-002 - SBE 75-0084

Effectivity

FIG/ITEM

PART NO.

02-010

3A0678

03-010

3A0698

02-010

3A1662

03-010

3A1666

General

Price and availability - none.

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

NOTE

Equipment and materials necessary to do this rework refer to SPM TASK 70-31-13-310-501, SPM TASK 70-23-05-230-501 and SPM TASK 70-09-00-400-501.
Equivalent equipment may be used.

NOTE

To identify the consumable materials, refer to the PCI.

Expendable parts

FIG/ITEM

PART IDENT

QTY

75-24-49, 02-880

Tube A/O

1 off

75-24-49, 02-890

Tube A/O

1 off

75-24-49, 02-900

Tube A/O

1 off

75-24-49, 02-910

Tube A/O

1 off

75-24-49, 02-920

Tube A/O

1 off

75-24-49, 02-930

Tube A/O

1 off

75-24-49, 02-940

Tube A/O

1 off

75-24-49, 02-950

Tube A/O

1 off

75-24-49, 02-800

Tube A/O

1 off

75-24-49, 02-810

Tube A/O

1 off

75-24-49, 02-820

Tube A/O

1 off

75-24-49, 02-830

Tube A/O

1 off

75-24-49, 02-840

Tube A/O

1 off

75-24-49, 02-850

Tube A/O

1 off

75-24-49, 02-860

Tube A/O

1 off

75-24-49, 02-870

Tube A/O

1 off

75-24-49, 03-870

Tube A/O

1 off

75-24-49, 03-940

Tube A/O

1 off

75-24-49, 03-880

Tube A/O

1 off

75-24-49, 03-890

Tube A/O

1 off

75-24-49, 03-900

Tube A/O

1 off

75-24-49, 03-910

Tube A/O

1 off

75-24-49, 03-920

Tube A/O

1 off

75-24-49, 03-930

Tube A/O

1 off

75-24-49, 03-800

Tube A/O

1 off

75-24-49, 03-950

Tube A/O

1 off

75-24-49, 03-810

Tube A/O

1 off

75-24-49, 03-820

Tube A/O

1 off

75-24-49, 03-830

Tube A/O

1 off

75-24-49, 03-840

Tube A/O

1 off

75-24-49, 03-850

Tube A/O

1 off

75-24-49, 03-860

Tube A/O

1 off

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NONE

Consumables, Materials and Expendables

NameManufacturerPart Number / IdentificationQuantityRemark
CoMat 03-246 WELDING MATERIALLOCALCoMat 03-246
CoMat 03-204 WELDING FILLER WIRELOCALCoMat 03-204

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 75-24-49-840-001 Rework of ACC Lower and Upper Air Cooling Duct (3A0678 and 3A0698)

    1. Rework of cooling ducts (01-010 and 03-010).

    2. SUBTASK 75-24-49-220-159 Examine the Lower and Upper Air Cooling Duct

      1. Make an inspection of air cooling duct.

      1. Refer to Inspection-000 TASK 75-24-49-200-100.

      2. Do not rework parts that do not satisfy serviceability requirements except damaged tubes.

    3. SUBTASK 75-24-49-320-061 Cut Off Damaged Tubes

      1. Cut off damaged tubes.

      1. Refer to Figure and Figure for dimensions.

        NOTE

        For replacement tubes refer to Figure, Figure, Figure and Figure.

      2. Machine tube ends to attach replacement tube in position. Machine tube and end on duct as required to get tube in correct position.

      1. Refer to Figure and Figure for dimensions.

    4. SUBTASK 75-24-49-220-160 Examine the Machined Tubes

      1. Visually examine machined tube for cracks.

      1. Use a 10x magnifying glass. No cracks are permitted.

      2. No cracks are permitted.

    5. SUBTASK 75-24-49-120-001 Clean the Parts

      1. Clean surface to be welded.

      1. Refer to Cleaning-000 TASK 75-24-49-100-100.

    6. SUBTASK 75-24-49-310-070 Weld the Tube

      1. Weld replacement tube into position.

      1. Refer to SPM TASK 70-31-13-310-501, tungsten inert gas method.

      3. For purity of welds, Refer to SPM TASK 70-31-13-310-501.

      4. Protective atmosphere required.

      5. Use applicable fixture to get correct weld repair.

      6. Refer to Figure and Figure.

    7. SUBTASK 75-24-49-220-161 Examine the Welded Parts

      1. Examine weld quality.

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

    8. SUBTASK 75-24-49-230-124 Examine the Welded Parts for Cracks

      1. Do test for cracks.

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

      2. Use medium sensitivity method.

      3. No cracks are permitted.

    9. SUBTASK 75-24-49-220-162 Examine the ACC Assembly

      1. Examine areas of ACC assembly dimensionally.

      1. Refer to Figure and Figure.

    10. SUBTASK 75-24-49-210-053 Examine the Air Holes of ACC Assembly

      1. Examine air holes for blockage.

      1. One blocked hole maximum for each tube is permitted.

    11. SUBTASK 75-24-49-850-001 Identify the ACC Assembly with the New Part Number

      1. Identify ACC assembly with new part number.

      1. Manual vibro-peen adjacent to existing part number as specified below.

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

      3. NUMBER BEFORE - 3A0678

      4. NEW NUMBER - 3A2656

      5. NUMBER BEFORE - 3A0698

      6. NEW NUMBER - 3A2657

    12. SUBTASK 75-24-49-840-002 Rework of ACC Lower and Upper Air Cooling Duct (3A1662 and 3A1666)

    1. Rework of cooling ducts (02-010 and 03-010).

    13. SUBTASK 75-24-49-220-163 Examine the Lower and Upper Air Cooling Duct

      1. Make an inspection of air cooling duct.

      1. Refer to Inspection-000 TASK 75-24-49-200-100.

      2. Do not rework parts that do not satisfy serviceability requirements except damaged tubes.

    14. SUBTASK 75-24-49-320-062 Cut Off Damaged Tubes

      1. Cut off damaged tubes.

      1. Refer to Figure and Figure for dimensions.

      2. Machine tube ends to attach replacement tube in position. Machine tube and end on duct as required to get tube in correct position.

      1. Refer to Figure and Figure for dimensions.

    15. SUBTASK 75-24-49-220-164 Examine the Machined Tubes

      1. Visually examine machined tube for cracks.

      1. Use a 10x magnifying glass.

      2. No cracks are permitted.

    16. SUBTASK 75-24-49-120-002 Clean the Parts

      1. Clean surface to be welded.

      1. Refer to Cleaning-000 TASK 75-24-49-100-100.

    17. SUBTASK 75-24-49-310-071 Weld the Tube

      1. Weld replacement tube into position.

      1. Refer to SPM TASK 70-31-13-310-501, tungsten inert gas method.

      2. Use CoMat 03-204 WELDING FILLER WIRE. For purity of welds, refer to SPM TASK 70-31-13-310-501.

      3. Protective atmosphere required.

      4. Use applicable fixture to get correct weld repair.

      5. Refer to Figure and Figure.

    18. SUBTASK 75-24-49-220-165 Examine the Welded Parts

      1. Examine weld quality.

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

    19. SUBTASK 75-24-49-230-126 Examine the Welded Parts for Cracks

      1. Do test for cracks.

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

      2. Use medium sensitivity method.

      3. No cracks are permitted.

    20. SUBTASK 75-24-49-220-166 Examine the ACC Assembly

      1. Examine areas of ACC assembly dimensionally.

      1. Refer to Figure and Figure.

    21. SUBTASK 75-24-49-210-054 Examine the Air Holes of ACC Assembly

      1. Examine air holes for blockage.

      1. One blocked hole maximum for each tube is permitted.

    22. SUBTASK 75-24-49-850-002 Identify the ACC Assembly with the New Part Number

      1. Identify ACC assembly with new part number.

      1. Manual vibro-peen adjacent to existing part number as specified below.

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

      3. NUMBER BEFORE - 3A1662.

      4. NEW NUMBER - 3A2658

      5. NUMBER BEFORE - 3A1666

      6. NEW NUMBER - 3A2659

    23. Figure: Rework of Active Clearance Control (ACC) Made from Titanium

    Rework of Active Clearance Control (ACC) Made from Titanium

    Rework of Active Clearance Control (ACC) Made from Titanium

    Rework of Active Clearance Control (ACC) Made from Titanium

    Rework of Active Clearance Control (ACC) Made from Titanium

    Rework of Active Clearance Control (ACC) Made from Titanium

    Figure: Rework of Active Clearance Control (ACC) Made from Titanium

    Rework of Active Clearance Control (ACC) Made from Titanium

    Rework of Active Clearance Control (ACC) Made from Titanium

    Rework of Active Clearance Control (ACC) Made from Titanium

    Rework of Active Clearance Control (ACC) Made from Titanium

    Rework of Active Clearance Control (ACC) Made from Titanium

    Figure: Rework of Active Clearance Control (ACC) Made from Steel Wit Titanium Tubes

    Rework of Active Clearance Control (ACC) Made from Steel Wit Titanium Tubes

    Rework of Active Clearance Control (ACC) Made from Steel Wit Titanium Tubes

    Rework of Active Clearance Control (ACC) Made from Steel Wit Titanium Tubes

    Rework of Active Clearance Control (ACC) Made from Steel Wit Titanium Tubes

    Rework of Active Clearance Control (ACC) Made from Steel Wit Titanium Tubes

    Figure: Rework of Active Clearance Control (ACC) Made from Steel Wit Titanium Tubes

    Rework of Active Clearance Control (ACC) Made from Steel Wit Titanium Tubes

    Rework of Active Clearance Control (ACC) Made from Steel Wit Titanium Tubes

    Rework of Active Clearance Control (ACC) Made from Steel Wit Titanium Tubes

    Rework of Active Clearance Control (ACC) Made from Steel Wit Titanium Tubes

    Rework of Active Clearance Control (ACC) Made from Steel Wit Titanium Tubes

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Revised format. (editorial change)

Manufacturer Code:LOCAL
Enterprise Name:LOCALLY SUPPLIED
Manufacturer Code:LOCAL
Supply Number:CoMat 03-204
Type:sp01
Supply Short Name:CoMat 03-204 WELDING FILLER WIRE
Supply Name:CoMat 03-204 WELDING FILLER WIRE
Specification Groups:
Doc NumberType
OMAT:306MSRR9500/2 B.S.2901:1970 347 S96/FORM. BSS2901 A8Nb
Suppliers:
ManufacturerRemarks
LOCAL
22994
IE306
Manufacturer Code:LOCAL
Supply Number:CoMat 03-246
Type:sp01
Supply Short Name:CoMat 03-246 WELDING MATERIAL
Supply Name:CoMat 03-246 WELDING MATERIAL
Specification Groups:
Doc NumberType
B.S.TA22 DTD 5133 TIMETAL 230 TI-P11 WL3.7124.1
Suppliers:
ManufacturerRemarks
LOCAL
U9025
K6835
0MRR3