TASK 72-41-21-200-004-E00 HPC Stage 8 Rotor Path Case Assembly - Examine, Inspection-004

DMC:V2500-A5-72-41-2108-00E-300A-C|Issue No:002.00|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 72-41-21-200-004-E00 HPC Stage 8 Rotor Path Case Assembly - Examine, Inspection-004

Effectivity

FIG/ITEM PART NO.

PART NO.

03-500

6B1432

General

This TASK gives the procedure for the inspection of the Stage 8 Rotor Path Case Assembly.

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

All the parts must be cleaned before any part is visually 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 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 SPM.

References

Refer to SPM for data on these items:

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

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 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 72-41-21-230-245 Examine the Stage 8 Rotor Path Case Assembly for Cracks

    1. Clean the parts. Refer to CLEANING-000 TASK 72-41-21-100-000.

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

        PART IDENT

        TASK/SUBTASK

        SPM TASK

        Stage 8 Rotor Path Case Assembly

        1. Cracked

        1. Reject

    2. SUBTASK 72-41-21-220-696 Examine the Stage 8 Rotor Path Case Assembly Lining at Location 1051

    1. Refer to Figure.

      2. Scored.

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

        1. Accept

        2. More than in Step.

        1. Refer to REPAIR-092 (VRS6663) TASK 72-41-21-300-092.

      3. Chipped

      1. Refer to REPAIR-092 (VRS6663) TASK 72-41-21-300-092.

      4. Wear

        1. If the lining radius is between 10.327 in. to 10.331 in. (262.31 to 262.41 mm).

        1. Accept.

        2. If the lining radius is more than in Step.

        1. Refer to REPAIR-092 (VRS6663) TASK 72-41-21-300-092.

    3. SUBTASK 72-41-21-220-697 Examine the Stage 8 Rotor Path Ring at Location 1103

      1. Refer to Figure.

        1. If the diameter is between 21.350 in. and 21.355 in. (542.30 and 542.42 mm).

        1. Accept

        2. Less than in Step.

        1. Reject.

    4. SUBTASK 72-41-21-220-698 Examine the Stage 8 Rotor Path Case Assembly Groove at Location 1124

    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.

        1. Reject

      3. Galled.

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

        1. Accept

        2. More than in Step.

        1. Reject

      4. Location 1124.

        1. If the width of the groove is between 0.115 in. to 0.1185 in. (2.92 mm to 3.01 mm).

        1. Accept

        2. If the width of the groove is more than in Step.

        1. Reject

    5. SUBTASK 72-41-21-220-699 Examine the Stage 8 Rotor Path Case Assembly Front and Rear Flanges at Face Locations 1, 2 and 1101

    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. Refer to REPAIR-005 (VRS6093) TASK 72-41-21-300-005.

      3. Scored.

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

        1. Accept

        2. More than in Step.

        1. Refer to REPAIR-005 (VRS6093) TASK 72-41-21-300-005.

      4. Location 1101.

        1. If the diameter is between 22.529 in. and 22.553 in. (572.24 mm and 572.85 mm).

        1. Accept.

        2. If the diameter is more than in Step.

        1. Reject.

    6. SUBTASK 72-41-21-220-700 Examine the Stage 8 Rotor Path Case Assembly Boltholes at Locations 3 and 4

    1. Refer to Figure.

      2. Burred edges.

      1. Refer to REPAIR-005 (VRS6093) TASK 72-41-21-300-005.

      3. Scored.

      1. Refer to REPAIR-005 (VRS6093) TASK 72-41-21-300-005.

    7. SUBTASK 72-41-21-220-701 Examine the Stage 8 Rotor Path Case Assembly Holes at Locations 6, 1147 and 1187

    1. Refer to Figure.

      2. Stop location holes at location 1147.

        1. Burred edges.

        1. Refer to REPAIR-005 (VRS6093) TASK 72-41-21-300-005.

        2. If the diameter is between 0.2504 in. and 0.2535 in. (6.360 mm and 6.440 mm).

        1. Accept

        3. If the diameter is more than in Step.

        1. Reject.

      3. Dowel holes at location 6.

        1. Burred edges.

        1. Refer to REPAIR-005 (VRS6093) TASK 72-41-21-300-005.

        2. If the diameter is between 0.220 in. and 0.232 in. (5.60 mm and 5.90 mm).

        1. Accept

        3. More than in Step.

        1. Reject.

      4. Location hole at location 1187.

        1. Burred edges.

        1. Refer to REPAIR-005 (VRS6093) TASK 72-41-21-300-005.

        2. If the diameter is between 0.1638 in. and 0.1709 in. (4.16 mm and 4.34 mm).

        1. Accept

        3. If the diameter is more than in Step.

        1. Reject.

    8. SUBTASK 72-41-21-220-702 Examine the Stage 8 Rotor Path Case Assembly Location Pin at Location 1189

    1. Refer to Figure.

      2. Loose.

      1. Repair, VRS6549 TASK 72-41-21-300-027 (REPAIR-027).

      3. Location Pin outer diameter.

        1. If the outer diameter is between 0.1580 in. and 0.1584 in. (4.013 mm and 4.023 mm).

        1. Accept.

        2. Less than in Step.

        1. Repair, VRS6549 TASK 72-41-21-300-027 (REPAIR-027).

    9. SUBTASK 72-41-21-220-703 Examine the Stage 8 Rotor Path Case Assembly Surface Protection

      1. Damaged.

      1. Repair, VRS6163 TASK 72-41-21-300-006 (REPAIR-006).

    10. SUBTASK 72-41-21-220-704 Examine the Stage 8 Rotor Path Case Assembly Remaining Surfaces

      1. Nicked, scored or galled.

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

        1. Accept

        2. More than in Step.

        1. Repair, VRS6093 TASK 72-41-21-300-005 (REPAIR-005).

    11. SUBTASK 72-41-21-220-705 Examine the Stage 8 Rotor Path Case Assembly Bores at Location 1180

    1. Refer to Figure.

      2. Nicks.

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

        1. Accept

        2. More than in Step.

        1. Reject

      3. Scored.

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

        1. Accept

        2. More than in Step.

        1. Reject

      4. Location 1180.

        1. If the diameter is between 21.3437 in. and 21.3484 in. (542.13 mm and 542.25 mm).

        1. Accept

        2. More than in Step.

        1. Reject

    12. SUBTASK 72-41-21-220-706 Examine the Stage 8 Rotor Path Case Assembly Groove at Location 1121

    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.

        1. Reject

      3. Galled.

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

        1. Accept

        2. More than in Step.

        1. Reject

      4. Wear.

        1. If the width of the groove is between 0.115 in. to 0.1185 in. (2.92 mm to 3.01 mm).

        1. Accept

        2. More than in Step.

        1. Reject

    13. Figure: Stage 8 Rotor Path Case Assembly - Inspection Locations

    Stage 8 Rotor Path Case Assembly - Inspection Locations

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Revised the procedure to update repair reference. (17VG010)