TASK 72-41-33-200-005-A00 HPC Stage 4 Variable Stator Vane Shroud - Examine, Inspection-005

DMC:V2500-A0-72-41-3314-00A-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 72-41-33-200-005-A00 HPC Stage 4 Variable Stator Vane Shroud - Examine, Inspection-005

Effectivity

FIG/ITEM PART NO.

03-200

6A3469

General

This TASK gives the procedure for the inspection of the stage 4 half shroud ring.

Fig/item numbers in parentheses in the procedure agree with those used in the IPC. Only the primary Fig/item numbers are used. For the service bulletin alpha variants refer to 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.

All the 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 Step. 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 subsequent date.

All the 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.

If one piece of the assembly is rejected, then the assembly must be rejected as a set.

References

Refer to the 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 70-20-01-200-501.

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 72-41-33-230-055 Examine the Stage 4 Half Shroud Ring (03-200) for Cracks

    1. Clean the parts. Refer to TASK 72-41-33-100-000.

      2. Do the test for cracks on the part that is given below.

        PART IDENT TASK/SUBTASK

        Stage 4 half shroud ring

        SPM TASK

        1. Cracked

        1. Reject

    2. SUBTASK 72-41-33-220-079 Examine the stage 4 Half Shroud Ring (72-41-33,03-200) Lands at Locations 1 and 2

    1. Refer to Figure.

      2. Nicked.

        1. Not more than 0.002 in. (0.05 mm) in depth

        1. Accept

        2. More than in step B.(1)

        1. Repair VRS6108, TASK 72-41-33-300-005 (REPAIR-005)

        3. More than permitted in VRS6108 in step B.(2)

        1. Repair VRS6650, TASK 72-41-33-300-020 (REPAIR-020)

      3. Scored.

        1. Not more than 0.002 in. (0.05 mm) in depth

        1. Accept

        2. More than in step C.(1)

        1. Repair VRS6108, TASK 72-41-33-300-005 (REPAIR-005)

        3. More than permitted in VRS6108 in step C.(2)

        1. Repair VRS6650, TASK 72-41-33-300-020 (REPAIR-020)

      4. Dented.

        1. Not more than 0.002 in. (0.05 mm) in depth

        1. Accept

        2. More than in step D.(1)

        1. Repair VRS6108, TASK 72-41-33-300-005 (REPAIR-005)

        3. More than permitted in VRS6108 in step D.(2)

        1. Repair VRS6650, TASK 72-41-33-300-020 (REPAIR-020)

    3. SUBTASK 72-41-33-220-080 Examine the Stage 4 Half Shroud Ring (72-41-33,03-200) Split Line Surfaces at Location 3

    1. Refer to Figure.

      2. Nicked

      1. Repair VRS6108, TASK 72-41-33-300-005 (REPAIR-005)

      3. Scored

      1. Repair VRS6108, TASK 72-41-33-300-005 (REPAIR-005)

      4. Scratched

      1. Repair VRS6108, TASK 72-41-33-300-005 (REPAIR-005)

    4. SUBTASK 72-41-33-220-081 Examine the Stage 4 Half Shroud Ring (72-41-33,03-200) Bush Locations at Location 1228

    1. Refer to Figure.

      2. Worn.

        1. If the diameter is between 0.354 and 0.355 in. (9.00 and 9.02 mm)

        1. Accept

        2. More than in step B.(1)

        1. Repair VRS6631, TASK 72-41-33-300-018 (REPAIR-018)

        3. More than permitted in VRS6631 in step B.(2)

        1. Repair VRS6650, TASK 72-41-33-300-020 (REPAIR-020)

      3. Scored.

        1. Not more than 0.002 in. (0.05 mm) in depth

        1. Accept

        2. More than in step C.(1)

        1. Repair VRS6631, TASK 72-41-33-300-018 (REPAIR-018)

        3. More than permitted in VRS6631 in step C.(2)

        1. Repair VRS6650, TASK 72-41-33-300-020 (REPAIR-020)

    5. SUBTASK 72-41-33-220-082 Examine the Stage 4 Half Shroud Ring (72-41-33,03-200) Bolt Holes at Location 4

    1. Refer to Figure.

      2. Burred edges

      1. Repair VRS6108, TASK 72-41-33-300-005 (REPAIR-005)

      3. Scored

      1. Repair VRS6108, TASK 72-41-33-300-005 (REPAIR-005)

    6. SUBTASK 72-41-33-220-083 Examine the Stage 4 Half Shroud Ring (72-41-33,03-200) Dowel Holes at Location 1258

    1. Refer to Figure.

      2. Burred edges

      1. Reject

      3. Scored

      1. Reject

      4. Worn

        1. If the diameter of the hole is between 0.200 and 0.201 in. (5.07 and 5.10 mm)

        1. Accept

        2. More than in step D.(1)

        1. Reject

    7. SUBTASK 72-41-33-220-084 Examine the Stage 4 Half Shroud Ring (72-41-33,03-200) Dowels at Location 1258

    1. Refer to Figure.

      2. Loose

      1. Repair VRS6677, TASK 72-41-33-300-023 (REPAIR-023)

      3. Burred edges

      1. Repair VRS6677, TASK 72-41-33-300-023 (REPAIR-023)

        2. Worn.

          1. If the diameter of the dowel is between 0.197 and 0.198 in. (5.01 and 5.02 mm)

          1. Accept

          2. Less than in step D.(1)

          1. Repair VRS6677, TASK 72-41-33-300-023 (REPAIR-023)

        3. Check for the installation of the dowel.

          1. If the depth from surface 5 to the face of the dowel is less than 0.618 in. (1.57 mm)

          1. Accept

          2. More than in step E.(1)

          1. Repair VRS6677, TASK 72-41-33-300-023, (REPAIR-023)

    8. SUBTASK 72-41-33-220-085 Examine the Stage 4 Half Shroud Ring (72-41-33,03-200) Surfaces at Location 5

    1. Refer to Figure.

      2. Scored.

        1. Not more than 0.002 in. (0.05 mm) in depth

        1. Accept

        2. More than in step B.(1)

        1. Repair VRS6108, TASK 72-41-33-300-005 (REPAIR-005)

      3. Galled.

        1. Not more than 0.002 in. (0.05 mm) in depth

        1. Accept

        2. More than in step C.(1)

        1. Repair VRS6108, TASK 72-41-33-300-005 (REPAIR-005)

      4. Scratched.

        1. Not more than 0.002 in. (0.05 mm) in depth

        1. Accept

        2. More than in step D.(1)

        1. Repair VRS6108, TASK 72-41-33-300-005 (REPAIR-005)

    9. SUBTASK 72-41-33-220-111 Examine the Stage 4 Half Shroud Ring (72-41-33,03-200) all Remaining Surfaces

      1. Nicked, dented and scratched.

        1. Not more than 0.002 in. (0.05 mm) in depth

        1. Accept

        2. More than in step A.(1)

        1. Repair VRS6108, TASK 72-41-33-300-005 (REPAIR-005)

    10. Figure: Stage 4 Half Shroud Ring - Inspection Locations

    Stage 4 Half Shroud Ring - Inspection Locations

Requirements After Job Completion

Follow-On Conditions

NONE