TASK 72-44-30-300-007 Inner Combustion Chamber Liner - Repair The Plasma Coat On The Front Outside Diameter Seal, Repair-007 (VRS3169)

DMC:V2500-A0-72-44-3001-02A-609A-C|Issue No:003.00|Issue Date:2021-08-01

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 72-44-30-300-007 Inner Combustion Chamber Liner - Repair The Plasma Coat On The Front Outside Diameter Seal, Repair-007 (VRS3169)

Effectivity

FIG/ITEM

PART NO.

01-401

2A1374

01-401

2A1398

01-401

2A1617

01-401

2A2034

01-401

2A2034-001

Material of component

DESCRIPTION

SYMBOL

MATERIAL

Combustion Chamber - Inner Liner

-

Wrought non-hardable nickel

base alloy

General

The practices and processes referred to in the procedure by the TASK number are in 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 you use chemical removal procedure, all details must be removed by the given repairs:TASK 72-44-30-300-001
TASK 72-44-30-300-003

Support Equipment

NONE

Consumables, Materials and Expendables

NONE

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-44-30-350-066 Remove the Remaining Plasma Coat from the Front Outside Diameter Seal on the Combustion Chamber Inner Liner

    1. Refer to Figure.

      2. Remove the coat that is on the part by one or more of the procedures that follow:

        1. Grind to remove the coat that is on the part.

        1. Deleted.

        2. Remove the coat that is on the part by the chemical removal procedure. Refer to SPM TASK 70-33-90-300-503.

        1. Make sure all details are removed.

        2. Apply a mask or maskants to all the areas that are not removed by SPM TASK 70-38-24-300-503.

      3. Remove the coat that is on the part by high pressure water jet. Refer to SPM TASK 70-15-01-160-501.

    2. SUBTASK 72-44-30-110-073 Clean the Combustion Chamber Inner Liner

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

    3. SUBTASK 72-44-30-230-074 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.

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

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

    4. SUBTASK 72-44-30-220-106 Examine the Front Outside Diameter Seal on the Combustion Chamber Inner Liner

    1. Do a dimensional inspection of the repair area. Refer to Figure.

    5. SUBTASK 72-44-30-380-005 Prepare the Surface of the Front Outside Diameter Seal

      1. Prepare the surface for coating.

      1. Refer to SPM TASK 70-34-18-380-501 and Figure.

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

    6. SUBTASK 72-44-30-340-053 Apply Plasma Coating to the Front Outside Diameter Seal of the Combustion Chamber Inner Liner

      1. Coat the front outer diameter seal by IAE 53-5. Refer to SPM TASK 70-34-03-340-501 and Figure.

      1. Coat out of the repair area is not permitted. Apply a mask or maskants.

      2. Grind operation is not permitted to remove coat.

    2. Deleted.

    7. SUBTASK 72-44-30-220-078 Examine the Plasma Coating on the Front Outside Diameter Seal on the Combustion Chamber Inner Liner

    1. Refer to Figure.

    2. Examine the coat after repair. Refer to SPM TASK 70-34-03-340-501.

    8. SUBTASK 72-44-30-350-067 Identify the Repair

      1. Use vibration peen procedure to mark VRS3169 adjacent to the part number. Refer to SPM TASK 70-09-00-400-501.

      1. Deleted.

    9. Figure: Repair Details and Dimensions

    Repair Details and Dimensions

Requirements After Job Completion

Follow-On Conditions

Action/ConditionData Module/Technical Publication
If removed, all details must be installed by the given repairs:TASK 72-44-30-300-001
TASK 72-44-30-300-003
Change Type:

Revised the procedural steps and deleted CoMat 03-066. (20VC049)