TASK 72-41-33-200-002 HPC Stage 3 Variable Stator Vane Shroud Half Seal - Examine, Inspection-002

DMC:V2500-A0-72-41-3323-00A-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 72-41-33-200-002 HPC Stage 3 Variable Stator Vane Shroud Half Seal - Examine, Inspection-002

Effectivity

FIG/ITEM PART NO.

02-150

6A1093

General

This TASK gives the procedure for the inspection of the stage 3 half ring seal.

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 the parts which must have a crack test is given in Step. Do the crack test before a 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 can 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, 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

NONE

Consumables, Materials and Expendables

NONE

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-41-33-230-052 Examine the Stage 3 Half Ring Seal (02-150) 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 3 half ring seal

        SPM TASK 70-23-02-230-501

        1. Cracked

        1. Reject

    2. SUBTASK 72-41-33-220-061 Examine the Stage 3 Half Ring Seal (02-150) Lining at Location 1001

    1. Refer to Figure.

      2. Scored.

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

        1. Accept

        2. More than in step A.(1)

        1. Repair, VRS6038 TASK 72-41-33-300-002 (REPAIR-002)

      3. Grooved.

        1. Up to 0.020in. (0.50 mm) in depth

        1. Accept

        2. More than in step B.(1)

        1. Repair, VRS6038 TASK 72-41-33-300-002 (REPAIR-002)

      4. Wear.

        1. If the diameter is between 10.354 to 10.358in. (262.99 to 263.09 mm)

        1. Accept

        2. More than in step C.(1)

        1. Repair, VRS6038 TASK 72-41-33-300-002 (REPAIR 002)

    3. SUBTASK 72-41-33-220-062 Examine the Stage 3 Half Ring Seal (02-150) Surfaces at Locations 1 and 2

    1. Refer to Figure.

      2. Galled.

        1. Up to 0.005in. (0.13 mm) in depth

        1. Accept

        2. More than in step A.(1)

        1. Reject

      3. Scored.

        1. Up to 0.005in. (0.13 mm) in depth

        1. Accept

        2. More than in step B.(1)

        1. Reject

    4. SUBTASK 72-41-33-220-063 Examine the Stage 3 Half Ring Seal (02-150) Bolt Holes at Location 3

    1. Refer to Figure.

      2. Burred edges

      1. Repair, VRS6276 TASK 72-41-33-300-011 (REPAIR-011)

      3. Scored

      1. Repair, VRS6276 TASK 72-41-33-300-011 (REPAIR-011)

    5. SUBTASK 72-41-33-220-064 Examine the Stage 3 Half Ring Seal (02-150) Dowel Holes at Location 4

    1. Refer to Figure.

      2. Burred edges

      1. Reject

      3. Scored

      1. Reject

    6. SUBTASK 72-41-33-220-108 Examine the Stage 3 Half Ring Seal (02-150) all Remaining Surfaces

      1. Nicked, dented and scored.

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

        1. Accept

        2. More than in step A.(1)

        1. Repair, VRS6276 TASK 72-41-33-300-011 (REPAIR-011)

    7. SUBTASK 72-41-33-220-127 Examine the Stage 3 Half Ring Seal (02-150) Surface Protection

      1. Damaged

      1. Repair, VRS6347 TASK 72-41-33-300-016 (REPAIR-016)

    8. Figure: Stage 3 half ring seal - inspection locations

    Stage 3 half ring seal - inspection locations

Requirements After Job Completion

Follow-On Conditions

NONE