TASK 72-50-31-200-006 LPT Stage 3, 4, 5, 6, 7 Disks - Examine, Inspection-006

DMC:V2500-A0-72-50-3100-00A-300A-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 72-50-31-200-006 LPT Stage 3, 4, 5, 6, 7 Disks - Examine, Inspection-006

Effectivity

All Stage 3 to 7 Turbine Disks

FIG/ITEM

PART NO.

01-200

3A0713

01-200

3A2151

01-200

3A2428

01-200

3A2508

01-200

3A2513

01-150

3A0794

01-150

3A1984

01-100

3A0795

01-100

3A1665

01-100

3A2153

01-100

3A2430

01-050

3A0066

01-050

3A1986

01-050

3A2996

01-010

3A0717

01-010

3A1987

01-010

3A2424

01-010

3A2512

01-010

3A2514

General

This TASK gives the procedure for the inspection of the stage 3 to 7 turbine disks.

Fig/item numbers in parentheses in the procedure agree with those used in the IPC.

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

All parts must be cleaned before any part is examined. Refer to the TASK 72-50-31-100-000 (CLEANING-000).

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

References

Refer to SPM for data on these items

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

Record and Control of the Lives of Parts, SPM TASK 70-05-00-220-501

Inspection of Parts, SPM TASK 70-20-00-200-501

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

Method of Testing for Crack indications

Chemical Processes

Surface Protection

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NONE

Consumables, Materials and Expendables

NONE

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-50-31-230-097 Do a Crack Test on the Stage 3 to Stage 7 Turbine Disks (Fluorescent Penetrant)

    1. Clean the parts. Refer to TASK 72-50-31-100-000 (CLEANING-000).

      NOTE

      Make a careful inspection, specially A1 areas, they are the areas for the crack test.

      2. Do the test for cracks on the parts that are given below. Use the applicable penetrant procedure.

        PART IDENT

        TASK/SUBTASK

        Stage 3 to 7 Turbine Disk

        1. Cracked

        1. Reject

    2. Figure: Important Crack Inspection Areas Typical Figure for all Stage 3 Turbine Disks

    Important Crack Inspection Areas Typical Figure for all Stage 3 Turbine Disks

    Figure: Important Crack Inspection Areas Typical Figure for all Stage 4 Turbine Disks

    Important Crack Inspection Areas Typical Figure for all Stage 4 Turbine Disks

    Figure: Important Crack Inspection Areas Typical Figure for all Stage 5 Turbine Disks

    Important Crack Inspection Areas Typical Figure for all Stage 5 Turbine Disks

    Figure: Important Crack Inspection Areas Typical Figure for all Stage 6 Turbine Disks

    Important Crack Inspection Areas Typical Figure for all Stage 6 Turbine Disks

    Figure: Important Crack Inspection Areas Typical Figure for all Stage 7 Turbine Disks

    Important Crack Inspection Areas Typical Figure for all Stage 7 Turbine Disks

Requirements After Job Completion

Follow-On Conditions

NONE