TASK 72-41-14-300-009 HPC Rear Rotating Air Seal - Repair The Front Flange Face By Machining - Repair-009 (VRS6656)

DMC:V2500-A0-72-41-1400-00A-659A-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 72-41-14-300-009 HPC Rear Rotating Air Seal - Repair The Front Flange Face By Machining - Repair-009 (VRS6656)

Effectivity

FIG/ITEM

PART NO.

01-800

6A3305

Assembly A

01-800

6A4113

Assembly B

01-800

6A4392

Assembly C

01-800

6A5869

Assembly D

General

This repair must only be done when the instruction to do so is given and the part number is referenced in the relevant Chapter/Section/Subject, Inspection.

This repair is to machine the HP compressor rear rotating air seal flange face.

The practises and processes referred to in the procedures by the TASK/SUBTASK are in the SPM.

The HP compressor rear rotating air seal is manufactured from Waspalloy.

Price and availability

Refer to International Aero Engines

Related repairs - none

NOTE

More equipment and materials necessary to do this Repair are in the SPM TASKs given below:
SPM TASK 70-09-00-400-501,
SPM TASK 70-11-03-300-503,
SPM TASK 70-11-34-300-503,
SPM TASK 70-11-39-300-503,
SPM TASK 70-23-05-230-501.

NOTE

To identify the consumable materials, refer to the PCI.

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NameManufacturerPart Number / IdentificationQuantityRemark
Chemical cleaning equipmentLOCALChemical cleaning equipment
Penetrant Crack Test EquipmentLOCALPenetrant crack test equipment
LatheLOCALLathe
Standard workshop equipmentLOCALStandard workshop equipment
Vibrating marking pencilLOCALVibrating marking pencil

Consumables, Materials and Expendables

NameManufacturerPart Number / IdentificationQuantityRemark
CoMat 06-022 FLUORESCENT PENETRANT (POST-EMULSIFIED ULTRA HIGH SENSITIVITY)LOCALCoMat 06-022

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-41-14-220-095 Dimensionally Examine the HP Compressor Rear Rotating Air Seal

    1. Refer to Figure, Figure, Figure and Figure.

    2. Dimensionally examine the component to identify the damage dimensions.

    3. Make sure that the damage can be removed whilst maintaining the flange thickness required.

    2. SUBTASK 72-41-14-110-064 Chemically Clean the HP Compressor Rear Rotating Air Seal

    1. Refer to Figure, Figure, Figure and Figure.

    2. Chemically clean the part.

      1. Use chemical cleaning equipment.

    3. SUBTASK 72-41-14-220-096 Dimensionally Examine the HP Compressor Rear Rotating Air Seal

    1. Refer to Figure, Figure, Figure and Figure.

    2. Dimensionally examine the rear rotating air seal to find the dimensions of damage.

    3. Use workshop inspection equipment. Keep the dimensions for use with Step.

    4. SUBTASK 72-41-14-320-001 Machine the HP Compressor Rear Rotating Air Seal by Turning

    1. Refer to Figure, Figure, Figure and Figure.

    2. Install the part into the lathe.

    3. Use standard workshop equipment.

    4. Machine to remove the damage from the flange front face.

      5. Machine to remove the damage at a maximum of 1.5x the depth of damage. Machine to remove all indication of damage.

        1. Machine the entire location face around the full circumference.

        1. The surface texture must be 0.00063 in. (0.000016 mm).

      2. Use a lathe/turning center with standard workshop equipment.

        3. Machine data:

        1. Speed, 131.233 surface feet per minute (40 metres per minute).

        2. Feed, 0.00394 in. per revolution (0.10 mm per revolution).

    6. Remove burrs and break sharp edges.

      7. Remove the burrs and sharp edges 0.012 in. +/- 0.008 in. (0.30 mm +/- 0.20 mm).

      1. Use standard workshop equipment.

    5. SUBTASK 72-41-14-230-066 Do a Crack Test

    1. Swab etch the repair area.

      2. Refer to SPM TASK 70-11-39-300-503, SUBTASK 70-11-39-300-001.

      1. Use chemical cleaning equipment.

    3. Do a local crack test on the machined areas.

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

        1. Use CoMat 06-022 FLUORESCENT PENETRANT (POST-EMULSIFIED ULTRA HIGH SENSITIVITY) with fluorescent penetrant crack test equipment.

        1. No cracks are permitted.

    6. SUBTASK 72-41-14-220-097 Visually and Dimensionally Examine the HP Compressor Rear Rotating Air Seal

    1. Refer to Figure, Figure, Figure and Figure.

    2. Visually and dimensionally examine the rear rotating air seal.

    3. Make sure that the damage has been removed completely and the part has been machined within the limits given.

    7. SUBTASK 72-41-14-350-066 Identify the Repair

    1. Refer to Figure, Figure, Figure and Figure.

    2. Mark VRS6656 on the part adjacent to the part number.

      3. Refer to the SPM TASK 70-09-00-400-501, SUBTASK 70-09-00-400-001.

    8. Figure: Repair Details and Dimensions - Assembly A

    Repair Details and Dimensions - Assembly A

    Figure: Repair Details and Dimensions - Assembly B

    Repair Details and Dimensions - Assembly B

    Figure: Repair Details and Dimensions - Assembly C

    Repair Details and Dimensions - Assembly C

    Figure: Repair Details and Dimensions - Assembly D

    Repair Details and Dimensions - Assembly D

Requirements After Job Completion

Follow-On Conditions

NONE
Manufacturer Code:LOCAL
Enterprise Name:LOCALLY SUPPLIED
Manufacturer Code:X222X
Supply Number:CoMat 06-022
Type:sp01
Supply Short Name:CoMat 06-022 FLUORESCENT PENETRANT (POST-EMULSIFIED ULTRA HIGH SENSITIVITY)
Supply Name:CoMat 06-022 FLUORESCENT PENETRANT (POST-EMULSIFIED ULTRA HIGH SENSITIVITY)
Specification Groups:
Doc NumberType
ARDROX 985-P14 OMAT: 652 (CHEMETALL OAKITE 985-P14)It is not permitted to mix the selected CoMat 06‐022 letter suffix material with other CoMat 06‐022 letter suffix materials. Where CoMat 06‐022 is specified with no suffix, use one of the CoMat 06‐ 022 letter suffix materials.
Suppliers:
ManufacturerRemarks
X222X
Manufacturer Code:LOCAL
Tool Number:Chemical cleaning equipment
Tool Name:Chemical cleaning equipment
Manufacturer Code:LOCAL
Tool Number:Lathe
Tool Name:Lathe
Manufacturer Code:LOCAL
Tool Number:Penetrant crack test equipment
Tool Name:Penetrant Crack Test Equipment
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