TASK 72-41-34-200-018 HPC Stage 5 Vane Ring Centralizing Pad And Housing - Examine, Inspection-018

DMC:V2500-A0-72-41-3445-00A-300A-C|Issue No:002.00|Issue Date:2019-05-01

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 72-41-34-200-018 HPC Stage 5 Vane Ring Centralizing Pad And Housing - Examine, Inspection-018

Effectivity

FIG/ITEM PART NO.

05-680

6A3091

05-680

6A7395

05-730

6A2930

05-730

6A4335

General

This TASK gives the procedure for the inspection of the stage 5 centralizing pads and housing assemblies.

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 SPM TASK 70-20-01-200-501.

All the parts must be cleaned before any part is examined. Refer to TASK 72-41-34-100-000 (CLEANING-000).

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.

A ** following 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 date.

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 SPM.

References

Refer to SPM for data on these items.

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

Inspection of Parts, TASK 70-20-01-200-501.

Some data on these items is contained in this TASK. For more data on these item 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 72-41-34-230-067 Examine the Stage 5 Centralizing Pads and Housing Assemblies for Cracks

    1. Clean the parts. Refer to TASK 72-41-34-100-000 (CLEANING-000).

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

        PART IDENT TASK/SUBTASK

        Stage 5 centralizing pads and housing assemblies

        SPM TASK 70-23-02-230-501

        1. Cracked.

        1. Reject.

    2. SUBTASK 72-41-34-220-133 Examine the Stage 5 Centralizing Pads Internal Surfaces at Location 1

    1. Refer to Figure.

      2. Galled.

        1. Up to 0.002 in. (0.050 mm) in depth.

        1. Accept.

        2. More than in Step.

        1. Repair, VRS6206 TASK 72-41-34-300-038 (REPAIR-038).

      3. Scored.

        1. Up to 0.005 in. (0.130 mm) in depth.

        1. Accept.

        2. More than in Step.

        1. Reject.

    3. SUBTASK 72-41-34-220-134 Examine the Stage 5 Centralizing Pads Bolt Holes at Location 2

    1. Refer to Figure.

      2. Elongated.

      1. Reject.

      3. Burred edges.

      1. Repair, VRS6206 TASK 72-41-34-300-038 (REPAIR-038).

    4. SUBTASK 72-41-34-220-135 Examine the Stage 5 Housing Assemblies Screw Thread Inserts at Location 3

    1. Refer to Figure.

      2. Broken.

      1. REPAIR, VRS6155 TASK 72-41-34-300-013 (REPAIR-013).

      3. Threads that are not there.

      1. REPAIR, VRS6155 TASK 72-41-34-300-013 (REPAIR-013).

      4. Crossed.

      1. REPAIR, VRS6155 TASK 72-41-34-300-013 (REPAIR-013).

      5. Worn excessively.

      1. REPAIR, VRS6155 TASK 72-41-34-300-013 (REPAIR-013).

    5. SUBTASK 72-41-34-220-136 Examine the Stage 5 Centralizing Pads and Housing Assemblies Pads at Location 4 and 5.

    1. Refer to Figure and Figure.

      2. Loose.

      1. Reject.

        2. Fig/item (05-680).

        1. Reject.

        3. Fig/item (05-730).

        1. Repair, VRS6314 TASK 72-41-34-300-040 (REPAIR-040).

      3. Bearing Surface.

        1. Scored.

          1. Up to 0.002 in. (0.050 mm) in depth.

          1. Accept.

          2. More than in Step.

          1. Repair.

            2. Fig/item (05-680).

            1. Reject.

            3. Fig/item (05-730).

            1. Repair, VRS6314 TASK 72-41-34-300-040 (REPAIR-040).

        2. Nicked.

          1. Up to 0.002 in. (0.050 mm) in depth.

          1. Accept.

          2. More than in Step.

          1. Repair.

            2. Fig/item (05-680).

            1. Reject.

            3. Fig/item (05-730).

            1. Repair, VRS6314 TASK 72-41-34-300-040 (REPAIR-040).

        3. Chipped.

          1. Up to 0.010 in. (0.250 mm) in depth at the edges and which project no more than 10 per cent in to the bearing surface.

          1. Accept.

          2. More than in Step.

          1. Repair.

            2. Fig/item (05-680).

            1. Reject.

            3. Fig/item (05-730).

            1. Repair, VRS6314 TASK 72-41-34-300-040 (REPAIR-040).

        4. Wear at location 4.

          1. If dimension A is between 0.009 in. to 0.012 in. (0.23 mm to 0.31 mm).

          1. Accept.

          2. Less than in Step.

          1. Repair.

            2. Fig/item (05-680).

            1. Reject.

    6. SUBTASK 72-41-34-220-180 Examine the Stage 5 Housing Assemblies Remaining Surface

      1. Nicked.

        1. Up to 0.002 in. (0.050 mm) in depth.

        1. Accept.

        2. More than in Step.

        1. Repair.

          2. Fig/item (05-680).

          1. Repair, VRS6206 TASK 72-41-34-300-038 (REPAIR-038).

          3. Fig/item (05-730).

          1. Repair, VRS6313 TASK 72-41-34-300-041 (REPAIR-041).

      2. Scored.

        1. Up to 0.002 in. (0.050 mm) in depth.

        1. Accept.

        2. More than in Step.

        1. Repair.

          2. Fig/item (05-680).

          1. Repair, VRS6206 TASK 72-41-34-300-038 (REPAIR-038).

          3. Fig/item (05-730).

          1. Repair, VRS6313 TASK 72-41-34-300-041 (REPAIR-041).

    7. Figure: Stage 5 centralizing pads and housing assemblies - inspection locations

    Stage 5 centralizing pads and housing assemblies - inspection locations

    Figure: Stage 5 centralizing pads and housing assemblies - inspection locations

    Stage 5 centralizing pads and housing assemblies - inspection locations

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Revised the figure references. (18VG403)