TASK 75-24-49-300-009 LPT ACC Cooling Air Ducts - Replace the Tubes of the Upper Duct Assembly, Repair-009 (VRS4253)

DMC:V2500-A0-75-24-4911-01A-920A-C|Issue No:001.00|Issue Date:2013-11-01

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 75-24-49-300-009 LPT ACC Cooling Air Ducts - Replace the Tubes of the Upper Duct Assembly, Repair-009 (VRS4253)

Effectivity

FIG/ITEM

PART NO.

02-010

3A0678

02-010

3A1501

02-010

3A1662

Material of component

DESCRIPTION

RR SYMBOL

MATERIAL

Cooling air duct, assembly

3A0678

TiCu2 (Tubes)

3A1501

TiAL6V4

3A1662

TiCu2 (Tubes)

3A1662

X10CrNi

General

Price and availability - none.

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

NOTE

For more equipment and materials necessary to do this repair, refer to SPM TASK 70-31-13-310-501, SPM TASK 70-23-05-230-501.
Equivalent materials or equipment may be used.

NOTE

To identify the consumable materials refer to the PCI.

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NameManufacturerPart Number / IdentificationQuantityRemark
OvenLOCALOven
FurnaceLOCALFurnace
Magnifying glassLOCALMagnifying glass

Consumables, Materials and Expendables

NameManufacturerPart Number / IdentificationQuantityRemark
CoMat 03-246 WELDING MATERIALLOCALCoMat 03-246

Spares

NameManufacturerPart Number / IdentificationQuantityRemark
TUBE - ASSEMBLY OF0AM533A18581
TUBE - ASSEMBLY OF0AM533A18591
TUBE - ASSEMBLY OF0AM533A1860
TUBE - ASSEMBLY OF0AM533A18611
TUBE - ASSEMBLY OF0AM533A18621
TUBE - ASSEMBLY OF0AM533A18631
TUBE - ASSEMBLY OF0AM533A18641
TUBE - ASSEMBLY OF0AM533A18651
TUBE - ASSEMBLY OF0AM533A18661
TUBE - ASSEMBLY OF0AM533A18671
TUBE - ASSEMBLY OF0AM533A18681
TUBE - ASSEMBLY OF0AM533A18691
TUBE - ASSEMBLY OF0AM533A18701
TUBE - ASSEMBLY OF0AM533A18711
TUBE - ASSEMBLY OF0AM533A18721
TUBE - ASSEMBLY OF0AM533A18731

Safety Requirements

NONE

Procedure

    1. SUBTASK 75-24-49-350-088 Remove the Damaged Tube

      1. Cut off damaged tube.

      1. Refer to Figure for dimension and identification of tubes.

      2. Cut away tube end.

      1. Attach replacement tube in position, cut tube end on case as necessary.

      2. Refer to dimensions in Figure.

    2. SUBTASK 75-24-49-110-067 Clean the Back Tube End

      1. Clean the tube end.

      1. Use a soft cloth only.

    3. SUBTASK 75-24-49-220-092 Examine the Parts for Cracks

      1. Do the test for cracks.

      2. Possible cracks cause decrease in weld strength.

      3. Cut to remove within dimensions in Figure.

    4. SUBTASK 75-24-49-110-068 Clean the Surfaces to be Welded

      1. Clean the surfaces to be welded.

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

      2. Dirty surfaces cause a reduction in weld strength.

    5. SUBTASK 75-24-49-310-052 Weld in the Replacement Tube

      NOTE

      Do the weld of titanium in a protective gas atmosphere to prevent impurities in weld seams, leading to cracks before the usual time and reduction in fatigue strength.

      1. Weld replacement tube in to position, use tungsten inert gas method.

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

      2. For purity of welds, weld in a protective gas environment.

      4. Use applicable fixture.

    6. SUBTASK 75-24-49-220-093 Examine the Welds

      1. Examine the weld quality.

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

    7. SUBTASK 75-24-49-230-075 Examine the Repaired Areas for Cracks

      1. Do the test for cracks.

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

      2. No cracks are permitted.

    8. SUBTASK 75-24-49-370-054 Heat Treatment after the Repair

      1. Heat treat air cooling duct, assembly.

      1. Put the part in the Oven, Furnace for two hours 887 deg F (475 deg C).

      2. Use Argon or air or vacuum.

    9. SUBTASK 75-24-49-230-076 Examine the Repaired Areas for Cracks

      1. Do the test for cracks.

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

      2. No cracks are permitted.

    10. SUBTASK 75-24-49-220-094 Do the Post Repair Inspection

      1. Dimensionally examine the repaired areas.

      1. Refer to Figure.

      2. Examine air holes for blockage.

      1. Maximum one blocked hole per repaired tube is permitted.

    11. Figure: Air Cool Duct, Assembly - Replacement of Tubes

    Air Cool Duct, Assembly - Replacement of Tubes

    Air Cool Duct, Assembly - Replacement of Tubes

    Air Cool Duct, Assembly - Replacement of Tubes

    Figure: Air Cool Duct, Assembly - Replacement of Tubes

    Air Cool Duct, Assembly - Replacement of Tubes

    Air Cool Duct, Assembly - Replacement of Tubes

Requirements After Job Completion

Follow-On Conditions

NONE
Manufacturer Code:0AM53
Enterprise Name:IAE INTERNATIONAL AERO ENGINES AG
BU Name:NULL
Building:SUITE 400
Street:628 HEBRON AVENUE
City:GLASTONBURY
State:CT
Zip Code:06033
Country:USA
Manufacturer Code:LOCAL
Enterprise Name:LOCALLY SUPPLIED
Part Number:3A1858
Part Name:TUBE - ASSEMBLY OF
Manufacturer Code:0AM53
Part Number:3A1859
Part Name:TUBE - ASSEMBLY OF
Manufacturer Code:0AM53
Part Number:3A1860
Part Name:TUBE - ASSEMBLY OF
Manufacturer Code:0AM53
Part Number:3A1861
Part Name:TUBE - ASSEMBLY OF
Manufacturer Code:0AM53
Part Number:3A1862
Part Name:TUBE - ASSEMBLY OF
Manufacturer Code:0AM53
Part Number:3A1863
Part Name:TUBE - ASSEMBLY OF
Manufacturer Code:0AM53
Part Number:3A1864
Part Name:TUBE - ASSEMBLY OF
Manufacturer Code:0AM53
Part Number:3A1865
Part Name:TUBE - ASSEMBLY OF
Manufacturer Code:0AM53
Part Number:3A1866
Part Name:TUBE - ASSEMBLY OF
Manufacturer Code:0AM53
Part Number:3A1867
Part Name:TUBE - ASSEMBLY OF
Manufacturer Code:0AM53
Part Number:3A1868
Part Name:TUBE - ASSEMBLY OF
Manufacturer Code:0AM53
Part Number:3A1869
Part Name:TUBE - ASSEMBLY OF
Manufacturer Code:0AM53
Part Number:3A1870
Part Name:TUBE - ASSEMBLY OF
Manufacturer Code:0AM53
Part Number:3A1871
Part Name:TUBE - ASSEMBLY OF
Manufacturer Code:0AM53
Part Number:3A1872
Part Name:TUBE - ASSEMBLY OF
Manufacturer Code:0AM53
Part Number:3A1873
Part Name:TUBE - ASSEMBLY OF
Manufacturer Code:0AM53
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
Manufacturer Code:LOCAL
Tool Number:Furnace
Tool Name:Furnace
Link not Found
Manufacturer Code:LOCAL
Tool Number:Oven
Tool Name:Oven