TASK 72-41-34-200-015 HPC Inlet Guide Vane Ring Centralizing Pad And Housing - Examine, Inspection-015

DMC:V2500-A0-72-41-3442-00A-300A-C|Issue No:002.00|Issue Date:2020-05-01

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 72-41-34-200-015 HPC Inlet Guide Vane Ring Centralizing Pad And Housing - Examine, Inspection-015

Effectivity

FIG/ITEM PART NO.

02-680

6A2917

02-680

6A3943

02-730

6A2920

02-730

6A3946

02-750

6A2923

02-750

6A3949

General

This TASK gives the procedure for the inspection of the variable guide vane centralizing pad housings and the connector housings

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

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 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/SUBTASK number are in the SPM.

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 are 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 72-41-34-230-064 Examine the Variable Inlet Guide Vane Centralizing Pad Housings and the Connector Housings for Cracks

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

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

        PART IDENT TASK/SUBTASK

        Variable inlet guide vane centralizing pads

        SPM TASK

        and housing assemblies

        SPM TASK 70-23-02-230-501

        1. Cracked

        1. Reject

    2. SUBTASK 72-41-34-220-122 Examine the Variable Inlet Guide Vane Centralizing Pad Housings (02-680) Surfaces at Locations 1 to 4

    1. Refer to: Figure

      2. Nicked.

        1. Not more than 0.005in. (0.13 mm) in depth

        1. Accept

        2. More than in step A.(1)

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

      3. Scored.

        1. Not more than 0.005in. (0.13 mm) in depth

        1. Accept

        2. More than in step B.(1)

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

      4. Galled.

        1. Not more than 0.005in. (0.13 mm) in depth

        1. Accept

        2. More than in step C.(1)

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

    3. SUBTASK 72-41-34-220-123 Examine the Variable Inlet Guide Vane Centralizing Pad Housings and the Connector Housings Screw Thread Inserts at Locations 5 and 6

    1. Refer to: Figure and Figure.

      2. Screw thread inserts at location 5.

        1. Broken

        1. Repair, VRS6155, TASK 72-41-34-300-013

        2. Crossed

        1. Repair, VRS6155, TASK 72-41-34-300-013

        3. Threads that are not there

        1. Repair, VRS6155, TASK 72-41-34-300-013

        4. Worn

        1. Repair, VRS6155, TASK 72-41-34-300-013

      3. Screw thread inserts at location 6.

        1. Broken

        1. Repair, VRS6156 TASK 72-41-34-300-014

        2. Crossed

        1. Repair, VRS6156 TASK 72-41-34-300-014

        3. Threads that are not there

        1. Repair, VRS6156 TASK 72-41-34-300-014

        4. Worn

        1. Repair, VRS6156 TASK 72-41-34-300-014

    4. SUBTASK 72-41-34-220-556 Examine the Variable Inlet Guide Vane Centralizing Pad Housings and the Connector Housings Pads at Locations 7 and 8

    1. Refer to Figure and Figure.

      2. Loose

      1. Repair VRS6648, TASK 72-41-34-300-059 (REPAIR-059)

        2. Bearing surface.

          1. Scored/Nicked.

            1. Not more than 0.005 in. (0.13 mm) in depth

            1. Accept

            2. More than in (a)

            1. Repair VRS6648, TASK 72-41-34-300-059 (REPAIR-059)

          2. Chipped.

            1. Not more than 0.010 in. (0.25 mm) in depth at the edges which project no more than 10 percent in to the bearing surface

            1. Accept

            2. More than in (a)

            1. Repair VRS6648, TASK 72-41-34-300-059 (REPAIR-059)

    5. SUBTASK 72-41-34-220-200 Examine the Variable Inlet Guide Vane Centralizing Pad Housings (02-730 and 02-750) Remaining Surfaces

      1. Nicked.

        1. Not more than 0.005in. (0.13 mm.) in depth

        1. Accept

        2. More than in step A.(1)

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

      2. Scored.

        1. Not more than 0.005in. (0.13 mm.) in depth

        1. Accept

        2. More than in step B.(1)

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

      3. Galled.

        1. Not more than 0.005in. (0.13 mm.) in depth

        1. Accept

        2. More than in step C.(1)

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

    6. Figure: Variable inlet guide vane centralizing pad housings and the connector housings - inspection locations

    Variable inlet guide vane centralizing pad housings and the connector housings - inspection locations

    Figure: Variable inlet guide vane centralizing pad housings and the connector housings - inspection locations

    Variable inlet guide vane centralizing pad housings and the connector housings - inspection locations

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Add graphic reference to subtask (CAS-63098-T0R8G0)