TASK 72-50-24-200-002-A00 LPT Inner Diffuser Duct Support - Examine, Inspection-002

DMC:V2500-A0-72-50-2402-00A-300A-C|Issue No:002.00|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 72-50-24-200-002-A00 LPT Inner Diffuser Duct Support - Examine, Inspection-002

Effectivity

FIG/ITEM

PART NO.

01-100

3A0104

01-100

3A1564

General

This TASK gives the procedure for the inspection of the inner diffuser support. For the other LP turbine inner static seal parts, refer to TASK 72-50-24-200-000 (INSPECTION-000).

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

A ** following any repair referenced in this inspection indicates that the repair is not yet published in the current revision of this manual and the part must be rejected. Contact IAE for additional information concerning FAA approved data.

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

All the parts must be cleaned before any part is examined. Refer to TASK 72-50-24-100-000 (CLEANING-000).

All parts must be visually examined for damage, corrosion and wear. Any defects that are not identified in the procedure must be referred to IAE.

The procedure for those parts which must have a crack test is given in SUBTASK 72-50-24-230-052. Do the crack test before the part is visually examined.

Do not discard any part until you are sure there are no repairs available. Refer to the instructions in Repair before a discarded part is used again or oversize parts are installed.

Parts which should be discarded can be held although no repair is available. The repair of a discarded part could be shown to be necessary at a later date.

All parts must be examined to make sure that all the repairs have been completed satisfactorily.

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, TASK 70-02-02-350-501

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

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

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

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NameManufacturerPart Number / IdentificationQuantityRemark
Dial gageLOCALDial gage
Dial indicator with needle insertLOCALDial indicator with needle insert
Dial caliperLOCALDial caliper

Consumables, Materials and Expendables

NONE

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-50-24-230-052-001 Do a Crack Test on the Inner Diffuser Support (Fluorescent Penetrant)

    1. Clean the parts. Refer to TASK 72-50-24-100-000 (CLEANING-000).

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

      PART IDENT

      TASK/SUBTASK

      Inner Diffuser Support

      3. Cracked

      1. Reject

    2. SUBTASK 72-50-24-230-052-002 Do a Crack Test on the Inner Diffuser Support (Fluorescent Penetrant)

    1. Clean the parts. Refer to TASK 72-50-24-100-000 (CLEANING-000).

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

      PART IDENT

      TASK/SUBTASK

      Inner Diffuser Support

      3. Cracked

      1. Reject

    3. SUBTASK 72-50-24-220-061 Examine the Inner Diffuser Support for Surface Damage

      1. Nicked or dented, use dial gage and dial indicator with needle insert.

        1. Any number, no raised material, 0.005 in. (0.13 mm) maximum depth

        1. Accept

        2. Other than in (1)

        1. Repair, VRS4119 TASK 72-50-24-300-013 (REPAIR-013)

    4. SUBTASK 72-50-24-220-062 Examine the Inner Diffuser Support at Location D1

    1. Refer to: Figure

      2. Worn, measure dimension D1. Use dial caliper.

        1. Between 0.1378 and 0.1318 in. (3.50 and 3.35 mm)

        1. Accept

        2. Less than in (1)

        1. Repair, VRS4121 TASK 72-50-24-300-015 (REPAIR-015)**

    5. SUBTASK 72-50-24-220-063 Examine the Option Nuts of the Inner Diffuser Support for Damage

      1. Axial movement, use dial gage and dial indicator with needle insert.

        1. More than 0.010 in. (0.25 mm)

        1. Repair, VRS4122 TASK 72-50-24-300-016 (REPAIR-016)

      2. Worn thread

      1. Repair, VRS4122 TASK 72-50-24-300-016 (REPAIR-016)

      3. Damaged

      1. Repair, VRS4122 TASK 72-50-24-300-016 (REPAIR-016)

    6. SUBTASK 72-50-24-220-064 Examine the Headless Shoulder Pin of the Inner Diffuser Support

      1. Worn, use dial caliper.

        1. Between 0.1969 and 0.1899 in. (5.0 and 4.82 mm)

        1. Accept

        2. Less than in (1)

        1. Repair, VRS4123 TASK 72-50-24-300-017 (REPAIR-017)

    7. SUBTASK 72-50-24-220-065 Examine the Inner Diffuser Support at Location A1

    1. Refer to: Figure

      2. Fretted, use dial gage and dial indicator with needle insert.

        1. Maximum 0.003 in. (0.075 mm) in depth

        1. Accept

        2. More than in (1)

        1. Repair, VRS4125 TASK 72-50-24-300-019 (REPAIR-019)**

    8. SUBTASK 72-50-24-220-066 Examine the Inner Diffuser Support at Location A2

    1. Refer to: Figure

      2. Fretted, use dial gage and dial indicator with needle insert.

        1. Maximum 0.002 in. (0.05 mm) in depth

        1. Accept

        2. Other than in (1)

        1. Reject

    9. SUBTASK 72-50-24-220-067 Examine the Inner Diffuser Support at Location D2

    1. Refer to: Figure

      2. Worn, measure the dimension D2. Use dial caliper.

        1. Between 0.3189 and 0.3070 in. (8.1 and 7.8 mm)

        1. Accept

        2. Less than in (1)

        1. Repair, VRS4124 TASK 72-50-24-300-018 (REPAIR-018)**

    10. Figure: Examine the inner diffuser support

    Examine the inner diffuser support

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Editorial correction due to conversion

Manufacturer Code:LOCAL
Enterprise Name:LOCALLY SUPPLIED
Manufacturer Code:LOCAL
Tool Number:Dial caliper
Tool Name:Dial caliper
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