TASK 72-45-25-200-001-C00 HPT Stage 2 Duct Band Segment - Examine, Inspection-001

DMC:V2500-A0-72-45-2502-00C-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 72-45-25-200-001-C00 HPT Stage 2 Duct Band Segment - Examine, Inspection-001

Effectivity

FIG/ITEM

PART NO.

01-020

2A3411-01

01-020

2A3412-01

General

This TASK gives the procedure for the inspection of the stage 2 HPT band segment assembly. For the other parts of the stage 2 HPT duct segment, refer to TASK 72-45-25-200-000 (INSPECTION).

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 the parts must be cleaned before any part is examined. Refer to the SPM TASK 70-10-00-100-501.

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 72-45-25-230-062. Do the 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, 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

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NONE

Consumables, Materials and Expendables

NONE

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-45-25-230-062-001 Examine the Stage 2 HPT Band Segment Assembly (01-020) for Cracks

    1. Clean the part. Refer to TASK 72-45-25-100-000 (CLEANING).

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

        PART IDENT

        TASK/OP

        Stage 2 HPT band segment assembly

        (Dip or Spray)

        1. Cracked up to 0.300 in. (7.62 mm) from part edges

        1. Repair, VRS3729 TASK 72-45-25-300-010 (REPAIR-010)

        2. Cracked other than (1)

        1. Reject

    2. SUBTASK 72-45-25-230-062-002 Examine the Stage 2 HPT Band Segment Assembly (01-020) for Cracks

    1. Clean the part. Refer to TASK 72-45-25-100-000 (CLEANING).

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

        PART IDENT

        TASK/OP

        Stage 2 HPT band segment assembly

        (Dip or Spray)

        1. Cracked up to 0.300 in. (7.62 mm) from part edges

        1. Repair, VRS3729 TASK 72-45-25-300-010 (REPAIR-010)

        2. Cracked other than (1)

        1. Reject

    3. SUBTASK 72-45-25-220-089 Examine the Stage 2 HPT Band Segment Assembly (01-020) for Blocked Holes

    1. Refer to: Figure

      2. Examine the band segment assembly at location 2, for blocked holes (12 places).

        1. Blocked holes

        1. Repair, VRS3729 TASK 72-45-25-300-010 (REPAIR-010)

    4. SUBTASK 72-45-25-220-090 Examine the Stage 2 HPT Band Segment Assembly (01-020) Front Tabs for Wear and Bend

    1. Refer to: Figure

      2. Examine the band segment assembly front tabs at location 4, for wear.

        1. Wear.

          1. Up to 0.002 in. (0.05 mm)

          1. Accept

          2. Other than (a)

          1. Repair, VRS3729 TASK 72-45-25-300-010 (REPAIR-010)

      3. Examine the band segment assembly front tab at location 3, for bend.

        1. Bend-up.

          1. If the dimension for PN 2A3411-01 is between 0.029 and 0.039 in. (0.737 and 0.991 mm)

          1. Accept

          2. If the dimension for PN 2A3412-01 is between 0.030 and 0.040 in. (0.762 and 1.016 mm)

          1. Accept

          3. Other than (a) or (b)

          1. Repair, VRS3729 TASK 72-45-25-300-010 (REPAIR-010)

    5. SUBTASK 72-45-25-220-091 Examine the Stage 2 HPT Band Segment Assembly (01-020) Rear Tabs for Wear and Bend

    1. Refer to: Figure

      2. Examine the band segment assembly rear tabs at location 5, for wear.

        1. Wear.

          1. Up to 0.002 in. (0.05 mm)

          1. Accept

          2. Other than (a)

          1. Repair, VRS3729 TASK 72-45-25-300-010 (REPAIR-010)

      3. Examine the band segment assembly rear tab at location 6, for bend.

        1. Bend-up.

          1. If the dimension for PN 2A3411-01 is between 0.025 and 0.035 in. (0.635 and 0.889 mm)

          1. Accept

          2. If the dimension for PN 2A3412-01 is between 0.022 and 0.032 in. (0.559 and 0.813 mm)

          1. Accept

          3. Other than (a) or (b)

          1. Repair, VRS3729 TASK 72-45-25-300-010 (REPAIR-010)

    6. SUBTASK 72-45-25-220-092 Examine the Stage 2 HPT Band Segment Assembly (01-020) End Tabs for Damage and Wear

    1. Refer to: Figure

      2. Examine the band segment assembly end tabs at location 7, for damage and wear.

        1. Cracked

        1. Repair, VRS3729 TASK 72-45-25-300-010 (REPAIR-010)

        2. Bent

        1. Repair, VRS3729 TASK 72-45-25-300-010 (REPAIR-010)

        3. Wear.

          1. Up to 0.003 in. (0.076 mm)

          1. Accept

          2. Other than (a)

          1. Repair, VRS3729 TASK 72-45-25-300-010 (REPAIR-010)

    7. Figure: Stage 2 HPT band segment assembly inspection locations

    Stage 2 HPT band segment assembly inspection locations

Requirements After Job Completion

Follow-On Conditions

NONE