TASK 72-41-12-200-004 Focus Inspection on Rear HPC Disc for Cracks

DMC:V2500-A0-72-41-1201-00A-300A-C|Issue No:001.00|Issue Date:2017-11-01

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 72-41-12-200-004 Focus Inspection on Rear HPC Disc for Cracks

Effectivity

FIG/ITEM

PART NO.

01-600

2A2100-01

01-600

2A2200-01

01-600

2A2600-01

01-600

2A3200-01

01-600

2A3300-01

01-600

2A3400-01

01-600

2A3500-01

General

This TASK gives the procedure to Focus FPI Rear HPC discs.

The policy that is necessary for inspection is given in the SPM TASK 70-20-00-200-501.

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

References

Refer to the SPM for data on these items.

Definitions of Damage, SPM TASK 70-02-02-350-501

Inspection of Parts, SPM TASK 70-20-01-200-501

Some data on these items is contained in this TASK. For more data on these items refer to the SPM.

Method of Testing for Crack Indications

Chemical Processes

Surface Protection

NOTE

To identify the consumable materials refer to the PCI.

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NONE

Consumables, Materials and Expendables

NameManufacturerPart Number / IdentificationQuantityRemark
CoMat 02-005 ADHESIVE TAPE (MASKING)LOCALCoMat 02-005

Spares

NONE

Safety Requirements

CAUTION

THE WORD FOCUS, SPECIFIED IN SUBTASK TITLES, INDICATES CRITICAL LOCATIONS ON COMPONENTS TO WHICH SPECIAL ATTENTION MUST BE GIVEN.

Procedure

    1. SUBTASK 72-41-12-230-079 Focus Inspect the Rear HPC Disc for Cracks

      NOTE

      This SUBTASK is an additional examination to the Ultra High Sensitivity Fluorescent Penetrant Inspection of the whole component. The additional examination using Ultra High Sensitivity Fluorescent Penetrant is only required for component areas that are specified within this SUBTASK.
    2. Refer to Figure, Figure, Figure , Figure and Figure.

    3. Clean the parts. Refer to TASK 72-41-12-100-000 (CLEANING-000).

    4. Mask the areas adjacent to inspection locations with CoMat 02-005 ADHESIVE TAPE (MASKING). This will prevent glare during inspection from Fluorescent Penetrant which may have soaked into the ceramic.

      1. Do the crack test. Refer to the SPM TASK 70-23-04-230-501. While completing the Fluorescent Penetrant Inspection called out by the TASK, special attention must be given to the focused areas listed in the following locations:

        1. Stages 9, 10, 11 and 12 disc bores. Zones 11, 9, 7, 5.

          1. Cracked

          2. Reject

        1. Stage 9 Vent holes (Air Transfer Holes).

          1. Cracked

          2. Reject

        1. NOTE

          1 loading slot per disc, 2 locking slots per disc.

          Stages 9, 10, 11 and 12 Loading and Locking slots.

          1. Cracked

          2. Reject

        1. Front slots (Stage 9 front flange slots).

          1. Cracked

          2. Reject

        1. Rear bolt holes (Stage 12 flange bolt holes).

          1. Cracked

          2. Reject

        1. Rear Flange Inner Surface: Location 4

          1. Cracked

          2. Reject

    5. Remove the adhesive tape.

  1. Figure: Rear HPC disk inspection locations

    Rear HPC disk inspection locations

    Figure: Rear HPC disk inspection locations

    Rear HPC disk inspection locations

    Figure: Rear HPC disk inspection locations

    Rear HPC disk inspection locations

    Figure: Rear HPC disk inspection locations

    Rear HPC disk inspection locations

    Figure: Rear HPC Disk inspection locations

    Rear HPC Disk inspection locations

    Figure: Rear HPC disk inspection locations

    Rear HPC disk inspection locations

    Figure: Rear HPC disk inspection locations

    Rear HPC disk inspection locations

    Figure: Focused Inspection - Stages 9, 10, 11 and 12 disks bore and Stage 9 Air transfer holes (Vent Holes)

    Focused Inspection - Stages 9, 10, 11 and 12 disks bore and Stage 9 Air transfer holes (Vent Holes)

    Figure: Focused Inspection - Blade Loading and Locking Slots Stages 9, 10, 11 and 12

    Focused Inspection - Blade Loading and Locking Slots Stages 9, 10, 11 and 12

    Figure: Focused Inspection - Front Flange Slots

    Focused Inspection - Front Flange Slots

    Figure: Focused Inspection - Rear Bolt Holes

    Focused Inspection - Rear Bolt Holes

    Figure: Focused Inspection - Rear Bolt Holes (Assembly B)

    Focused Inspection - Rear Bolt Holes (Assembly B)

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Added Task 72-41-12-200-004 for subtask 72-41-12-230-079 to comply with AD 2004-12-08 and (17VG145)

Manufacturer Code:LOCAL
Enterprise Name:LOCALLY SUPPLIED
Manufacturer Code:LOCAL
Supply Number:CoMat 02-005
Type:sp01
Supply Short Name:CoMat 02-005 ADHESIVE TAPE (MASKING)
Supply Name:CoMat 02-005 ADHESIVE TAPE (MASKING)
Specification Groups:
Doc NumberType
OMAT: 2/94 (RR REF)AT 7 BLACK, WATERPROOF
Suppliers:
ManufacturerRemarks
LOCAL
U0415
K6835