TASK 72-42-61-300-002 Outer Combustion Chamber Liner - Repair The Plasma Coat On The Front Inside Diameter, Repair-002 (VRS3090)

DMC:V2500-A0-72-42-6101-00A-609A-C|Issue No:004.00|Issue Date:2021-05-01

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 72-42-61-300-002 Outer Combustion Chamber Liner - Repair The Plasma Coat On The Front Inside Diameter, Repair-002 (VRS3090)

Effectivity

FIG/ITEM

PART NO.

01-501

2A0550-01

01-501

2A1383

01-501

2A1618

01-501

2A1620

01-501

2A1666

01-501

2A2032

01-501

2A2723-01

01-501

2A2837-01

01-501

2A3345-01

01-501

2A3345-001

01-501

2A3345-002

01-501

2A3345-003

01-501

2A3345-004

01-501

2A3347-01

01-501

2A3347-001

01-501

2A3347-002

01-501

2A3347-003

01-501

2A3347-004

01-501

2A3347-005

01-501

2A3439-01

01-501

2A3439-001

01-501

2A3439-002

01-501

2A3439-003

01-501

2A3439-004

01-501

2A3439-005

01-501

2A3439-006

01-501

2A3439-007

01-501

2A3439-008

01-501

2A3440-01

01-501

2A3440-001

01-501

2A3440-002

01-501

2A3440-003

01-501

2A3440-004

01-501

2A3440-005

01-501

2A3440-006

01-501

2A3440-007

01-501

2A3441-01

01-501

2A3441-001

01-501

2A3441-002

01-501

2A3441-003

01-501

2A3441-004

01-501

2A3441-005

01-501

2A3441-006

01-501

2A3441-007

01-501

2A3441-008

01-501

2A3442-01

01-501

2A3442-001

01-501

2A3442-002

01-501

2A3442-003

01-501

2A3442-004

01-501

2A3442-005

01-501

2A3442-006

01-501

2A3442-007

01-501

2A3442-008

01-501

2A4284-01

01-501

2A4309-01

01-501

2A4312-01

01-501

2A4314-01

01-501

2A4314-001

Material of component

DESCRIPTION

SYMBOL

MATERIAL

Combustion chamber outer liner

-

-

General

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

Preliminary Requirements

Pre-Conditions

Action/ConditionData Module/Technical Publication
Make sure that all the cleaning and inspection procedures are done before this repair.
If the chemical strip option is used, all details must be removed by the listed below repairs:
Repair-004 (VRS3092)TASK 72-42-61-300-004
Repair-006 (VRS3094)TASK 72-42-61-300-006
Repair-007 (VRS3095)TASK 72-42-61-300-007
Repair-008 (VRS3096)TASK 72-42-61-300-008
Repair-015 (VRS3540)TASK 72-42-61-300-015

Support Equipment

NONE

Consumables, Materials and Expendables

NONE

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-42-61-350-061 Remove the Coating from the Front Inside Diameter of the Combustion Chamber Outer Liner

    1. Refer to Figure and Figure.

      2. Remove the old coating by one or more of the methods that follow:

      1. Grind to remove the old coating.

        2. Remove the old coating by the chemical strip method. Refer to SPM TASK 70-33-90-300-503.

        1. Make sure all details are removed.

        2. Mask all areas not to be stripped by SPM TASK 70-38-24-300-503. Use masks or maskants.

      3. Remove the old coating by high pressure water jet. Refer to the SPM TASK 70-15-01-160-501.

    2. SUBTASK 72-42-61-110-054 Clean the Combustion Chamber Outer Liner

    1. Clean the part by Aqueous Cleaning Method by SPM TASK 70-11-03-300-503.

    3. SUBTASK 72-42-61-230-056 Fluorescent Penetrant Inspect the Repair Area

      1. Do a fluorescent penetrant inspection of the repair area by one of the methods that follow. Refer to Figure and Figure.

      1. Do a fluorescent penetrant inspection of the repair area by the SPM TASK 70-23-03-230-501.

      2. Do a fluorescent penetrant inspection of the repair area by the SPM TASK 70-23-08-230-501.

    4. SUBTASK 72-42-61-220-162 Examine the Front Inside Diameter Seal on the Combustion Chamber Outer Liner

      1. Refer to Figure and Figure.

      1. Do a dimensional inspection of the repair area.

    5. SUBTASK 72-42-61-380-006 Prepare the Surface of the Front Inside Diameter

      1. Prepare the surface for coating. Refer to the SPM TASK 70-34-18-380-501, Figure and Figure.

      1. Grit blast out of the repair area shown is not permitted. Use masks or maskants.

    6. SUBTASK 72-42-61-340-057 Coat the Front Inside Diameter of the Combustion Chamber Outer Liner

    1. Refer to Figure and Figure.

      2. Coat front inside diameter of the outer liner by IAE 53-5. Refer to the SPM TASK 70-34-03-340-501.

      1. Coat out of the repair area is not permitted. Use masks or maskants.

      2. Do not grind coating.

    7. SUBTASK 72-42-61-220-125 Examine the Front Inside Diameter of the Combustion Chamber Outer Liner after Repair

      1. Examine the front inside diameter.

      1. Refer to Figure and Figure.

    8. SUBTASK 72-42-61-350-063 Identify the Repair

    1. Mark VRS3090 adjacent to the part number by using vibration peen method. Refer to the SPM TASK 70-09-00-400-501.

    9. Figure: Repair Details and Dimensions (All PNs Except For PNs 2A0550-01, 2A1383, 2A1618, 2A1620, 2A1666 And 2A2032)

    Repair Details and Dimensions (All PNs Except For PNs 2A0550-01, 2A1383, 2A1618, 2A1620, 2A1666 And 2A2032)

    Figure: Repair Details and Dimensions (For PNs 2A0550-01, 2A1383, 2A1618, 2A1620, 2A1666 And 2A2032 ONLY)

    Repair Details and Dimensions (For PNs 2A0550-01, 2A1383, 2A1618, 2A1620, 2A1666 And 2A2032 ONLY)

Requirements After Job Completion

Follow-On Conditions

Action/ConditionData Module/Technical Publication
Make sure that all the cleaning and inspection procedures are done before this repair.
If the chemical strip option is used, all details must be installed by the listed below repairs:
Repair-004 (VRS3092)TASK 72-42-61-300-004
Repair-006 (VRS3094)TASK 72-42-61-300-006
Repair-007 (VRS3095)TASK 72-42-61-300-007
Repair-008 (VRS3096)TASK 72-42-61-300-008
Repair-015 (VRS3540)TASK 72-42-61-300-015
Change Type:

Updated Repair reference. (CAS-95730-C1C7V8)