TASK 72-50-25-200-001-A00 LPT Outer Diffuser Support - Examine, Inspection-001

DMC:V2500-A0-72-50-2502-00A-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 72-50-25-200-001-A00 LPT Outer Diffuser Support - Examine, Inspection-001

Effectivity

FIG/ITEM PART NO.

01-010

3A0084

General

This TASK gives the procedure for the inspection of the outer diffuser assembly support. For the other LP turbine diffuser duct parts, refer to TASK 72-50-25-200-000 (INSPECTION/CHECK-000).

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 70-20-01-200-501.

All the parts must be cleaned before any part is examined. Refer to TASK 72-50-25-100-000 (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 have a crack test is given in SUBTASK 72-50-25-230-051. Do the test before the part is visually examined.

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

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 70-20-01-200-501

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

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NameManufacturerPart Number / IdentificationQuantityRemark
Dial gageLOCALDial gage
Dial indicatorLOCALDial indicator
Dial caliperLOCALDial caliper

Consumables, Materials and Expendables

NONE

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-50-25-230-051-001 Do a Crack Test on the Outer Diffuser Assembly Support (Fluorescent Penetrant)

    1. Clean the parts. Refer to TASK 72-50-25-100-000 (CLEANING-000).

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

        PART IDENT TASK/SUBTASK

        Outer Diffuser Assembly Support

        TASK 70-23-02-230-051

        1. Cracked in area A4

        1. Accept

        2. Cracked in any other area

        1. Reject

    2. SUBTASK 72-50-25-230-051-002 Do a Crack Test on the Outer Diffuser Assembly Support (Fluorescent Penetrant

    1. Clean the parts. Refer to TASK 72-50-25-100-000 (CLEANING-000).

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

        PART IDENT TASK/SUBTASK

        Outer Diffuser Assembly Support

        1. Cracked in area A4

        1. Accept

        2. Cracked in any other area

        1. Reject

    3. SUBTASK 72-50-25-220-052 Examine the Surface of the Outer Diffuser Assembly Support for Damage

      1. Examine the surface for nicks and dents. Use a dial gage and a dial indicator.

        1. Any number, up to 0.004in. (0.1 mm) in depth with no raised metal

        1. Accept

        2. Other than in (1)

        1. Reject

    4. SUBTASK 72-50-25-220-053 Examine the Front Location Lip of the Outer Diffuser Assembly Support

    1. Refer to: Figure

      2. Examine the front location lip. Use a dial gage and a dial indicator.

        1. Worn.

          1. If dimension D1 is between 0.0945 and 0.0875in. (2.40 and 2.22 mm)

          1. Accept

          2. Less than in (a)

          1. Repair, VRS4140 TASK 72-50-25-300-003 (REPAIR-003)

    5. SUBTASK 72-50-25-220-054 Examine the Sealing Plate of the Outer Diffuser Assembly Support for Damage

    1. Refer to: Figure

      2. Examine the sealing plate for damage.

        1. Bent.

          1. Lightly bent, does not affect assembly

          1. Accept

          2. Badly bent, assembly is affected

          1. Repair, VRS4141 TASK 72-50-25-300-004 (REPAIR-004)

    6. SUBTASK 72-50-25-220-055 Examine the Clinch Nuts of the Outer Diffuser Assembly Support

      1. Examine the clinch nuts.

        1. Axial movement of more than 0.010in. (0.25 mm)

        1. Repair, VRS4142 TASK 72-50-25-300-005 (REPAIR-005)

        2. Damaged

        1. Repair, VRS4142 TASK 72-50-25-300-005 (REPAIR-005)

        3. Worn thread

        1. Repair, VRS4142 TASK 72-50-25-300-005 (REPAIR-005)

    7. SUBTASK 72-50-25-220-056 Examine the Location Key of the Outer Diffuser Assembly Support

      1. Examine the location key.

        1. Loose key

        1. Repair, VRS4143 TASK 72-50-25-300-006 (REPAIR-006)

        2. Use a dial caliper to examine the location key for wear.

          3. Key dimension is between 0.3201 and 0.3141in. (8.13 and 7.98 mm)

          1. Accept

          4. Less than in (a)

          1. Repair, VRS4143 TASK 72-50-25-300-006 (REPAIR-006)

    8. SUBTASK 72-50-25-220-057 Examine the End Faces of the Outer Diffuser Assembly Support at Location A1

    1. Refer to: Figure

      2. Examine the end faces. Use a dial gage and dial indicator.

        1. Fretted.

          1. Up to 0.003in. (0.076 mm) in depth

          1. Accept

          2. More than in (a)

          1. Reject

    9. SUBTASK 72-50-25-220-058 Examine the Rear Location Hook of the Outer Diffuser Assembly Support

    1. Refer to: Figure

      2. Examine the rear location hook.

        1. Use a dial caliper to examine the rear location hook for wear.

          1. Hook dimension D2 is between 0.0787 and 0.0738in. (1.99 and 1.87 mm)

          1. Accept

          2. Less than in (a)

          1. Repair, VRS4139 TASK 72-50-25-300-002 (REPAIR-002)**

    10. SUBTASK 72-50-25-220-059 Examine the Locating Face of the Outer Diffuser Assembly Support at Location A2

    1. Refer to: Figure

      2. Examine the locating face. Use a dial gage and a dial indicator.

        1. Fretted.

          1. Up to 0.004in. (0.1 mm) in depth

          1. Accept

          2. More than in (a)

          1. Repair, VRS4402 TASK 72-50-25-300-025 (REPAIR-025)**

        2. Corroded, oxidized or sulphidized.

          1. Up to 0.020in. (0.51 mm) in depth

          1. Repair, VRS4402 TASK 72-50-25-300-025 (REPAIR-025)**

          2. More than in (a)

          1. Reject

    11. SUBTASK 72-50-25-220-060 Examine the Locating Slots of the Outer Diffuser Assembly Support at Location A3

    1. Refer to: Figure

      2. Examine the locating slots. Use a dial gage and a dial indicator.

        1. Fretted.

          1. Up to 0.002in. (0.05 mm) in depth

          1. Accept

          2. More than in (a)

          1. Reject

    12. Figure: Examine the outer diffuser assembly support

    Sheet 1

    Legend
    Examine the outer diffuser assembly support

    Sheet 1

    Close

    Figure: Examine the outer diffuser assembly support

    Sheet 2

    Legend
    Examine the outer diffuser assembly support

    Sheet 2

    Close

Requirements After Job Completion

Follow-On Conditions

NONE
Manufacturer Code:LOCAL
Enterprise Name:LOCALLY SUPPLIED
Manufacturer Code:LOCAL
Tool Number:Dial caliper
Tool Name:Dial caliper
Link not Found
Manufacturer Code:LOCAL
Tool Number:Dial indicator
Tool Name:Dial indicator