TASK 72-41-33-200-006-B00 HPC Stage 5 Variable Stator Vane Shroud - Examine, Inspection-006

DMC:V2500-A0-72-41-3315-00C-300A-C|Issue No:003.00|Issue Date:2019-08-01

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 72-41-33-200-006-B00 HPC Stage 5 Variable Stator Vane Shroud - Examine, Inspection-006

Effectivity

FIG/ITEM PART NO.

04-200

6A7563

04-200

6B1158

General

This TASK gives the procedure for the inspection of the stage 5 half shrouds.

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 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 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 SPM.

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

References

Refer to SPM for data on these items:

Definition of Damages, 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 item refer to SPM:

Methods 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 72-41-33-230-080 Examine the Stage 5 Half Shroud (04-200) for Cracks

    1. Clean the parts. Refer to TASK 72-41-00-100-000.

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

        PART IDENT

        TASK/SUBTASK

        Stage 5 half shroud

        SPM TASK 70-23-02-230-501

        1. Cracked.

        1. Reject.

    2. SUBTASK 72-41-33-220-183 Examine the Stage 5 Half Shroud (72-41-33, 04-200) 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.

        1. Repair, VRS6109 TASK 72-41-33-300-006 (REPAIR-006).

      3. Scored.

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

        1. Accept.

        2. More than in Step.

        1. Repair, VRS6109 TASK 72-41-33-300-006 (REPAIR-006).

      4. Dents.

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

        1. Accept.

        2. More than in Step.

        1. Repair, VRS6109 TASK 72-41-33-300-006 (REPAIR-006).

    3. SUBTASK 72-41-33-220-184 Examine the Stage 5 Half Shroud (72-41-33, 04-200) Surfaces at Locations 3 and 4

    1. Refer to Figure.

      2. Galled.

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

        1. Accept.

        2. More than in Step.

        1. Repair, VRS6109 TASK 72-41-33-300-006 (REPAIR-006).

      3. Scored.

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

        1. Accept.

        2. More than in Step.

        1. Repair, VRS6109 TASK 72-41-33-300-006 (REPAIR-006).

      4. Wear.

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

        1. Accept.

        2. More than in Step.

        1. Repair, VRS6109 TASK 72-41-33-300-006 (REPAIR-006).

    4. SUBTASK 72-41-33-220-185 Examine the Stage 5 Half Shroud (72-41-33, 04-200) Split Line Surface at Location 5

    1. Refer to Figure.

      2. Nicked.

      1. Repair, VRS6109 TASK 72-41-33-300-006 (REPAIR-006).

      3. Scored.

      1. Repair, VRS6109 TASK 72-41-33-300-006 (REPAIR-006).

      4. Scratched.

      1. Repair, VRS6109 TASK 72-41-33-300-006 (REPAIR-006).

    5. SUBTASK 72-41-33-220-186 Examine the Stage 5 Half Shroud Bush Location at Location 1240

    1. Refer to Figure.

      2. Wear.

        1. If the diameter is between 0.393 in. to 0.394 in. (10.00 mm to 10.02 mm).

        1. Accept.

        2. More than in Step.

        1. Reject.

      3. Scored.

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

        1. Accept.

        2. More than in Step.

        1. Reject.

    6. SUBTASK 72-41-33-220-187 Examine the Stage 5 Half Shroud (04-200) Bolt Holes at Location 6

    1. Refer to Figure.

      2. Burred edges.

      1. Reject.

      3. Scored.

      1. Reject.

    7. SUBTASK 72-41-33-220-188 Examine the Stage 5 Half Shroud (04-200) Dowel Holes at Location 1258

    1. Refer to Figure.

      2. Burred edges.

      1. Reject.

      3. Scored.

      1. Reject.

      2. Wear.

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

        1. Accept.

        4. More than in Step.

        1. Reject.

    8. SUBTASK 72-41-33-220-189 Examine the Stage 5 Half Shroud (04-200) Dowel at Location 1258

    1. Refer to Figure.

      2. Loose.

      1. Reject.

      3. Burred edges.

      1. Reject.

      2. Wear.

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

        1. Accept.

        4. Less than in Step.

        1. Reject.

    9. SUBTASK 72-41-33-220-190 Examine the Stage 5 Half Shroud (04-200) Lining at Location 1004

    1. Refer to Figure.

      2. Grooved.

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

        1. Accept.

        2. More than in Step.

        1. Repair, VRS6040 TASK 72-41-33-300-004 (REPAIR-004)

      3. Wear.

        1. If the diameter is between 13.926 in. to 13.930 in. (353.72 mm to 353.82 mm).

        1. Accept.

        2. More than in Step.

        1. Repair, VRS6040 TASK 72-41-33-300-004 (REPAIR-004).

      4. Scored.

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

        1. Accept.

        2. More than in Step.

        1. Repair, VRS6040 TASK 72-41-33-300-004 (REPAIR-004).

    10. SUBTASK 72-41-33-220-191 Examine the Stage 5 Half Shroud (72-41-33,04-200) 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.

        1. Repair, VRS6109 TASK 72-41-33-300-006 (REPAIR-006).

    11. Figure: Stage 5 Half Shroud - Inspection Locations

    Stage 5 Half Shroud - Inspection Locations

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Revised steps and figure. (18VG398)