TASK 72-41-21-200-013-D00 HPC Stage 12 Rotor Path Case Assembly - Examine, Inspection-013

DMC:V2500-A5-72-41-2112-00D-300A-C|Issue No:001.00|Issue Date:2015-02-01

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 72-41-21-200-013-D00 HPC Stage 12 Rotor Path Case Assembly - Examine, Inspection-013

Effectivity

FIG/ITEM PART NO.

04-600

6B1436

General

This TASK gives the procedure for the inspection of the Stage 12 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 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 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 discarded parts 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, 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 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 72-41-21-230-248 Examine the Stage 12 Rotor Path Case Assembly for Cracks

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

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

        PART IDENT

        TASK/SUBTASK

        Stage 12 Rotor Path Case Assembly

        1. Cracked

          1. Not more than two cracks between the borescope access hole and rivet hole. If there are two cracks, the cracks must not be on any adjacent holes.

          1. Accept

          2. Other than in Step.

          1. Reject

    2. SUBTASK 72-41-21-220-727 Examine the Stage 12 Rotor Path Case Assembly Front and Rear Flanges at Face Locations 1, 2 and 1165

    1. Refer to Figure.

      2. Galled

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

        1. Accept

        2. More than in Step.

        1. Refer to REPAIR-020 (VRS6101) TASK 72-41-21-300-020.

      3. Scored

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

        1. Accept

        2. More than in Step.

        1. Refer to REPAIR-020 (VRS6101) TASK 72-41-21-300-020.

      4. Location 1165

        1. If the diameter is between 21.344 and 21.348 inch (542.14 and 542.24 mm)

        1. Accept

        2. More than in Step.

        1. Reject

    3. SUBTASK 72-41-21-220-728 Examine the Stage 12 Rotor Path Case Assembly Boltholes at Locations 3 and 4

    1. Refer to Figure.

      2. Burred edges

      1. Refer to REPAIR-020 (VRS6101) TASK 72-41-21-300-020.

      3. Scored

      1. Refer to REPAIR-020 (VRS6101) TASK 72-41-21-300-020.

    4. SUBTASK 72-41-21-220-729 Examine the Stage 12 Rotor Path Case Assembly Holes at Locations 5, 1199 and 1163

    1. Refer to Figure.

      2. Location Pin hole at location 1199

        1. Burred edges

        1. Refer to REPAIR-020 (VRS6101) TASK 72-41-21-300-020.

        2. If the diameter is between 0.1638 to 0.1709 inch (4.16 to 4.34 mm)

        1. Accept

        3. If the diameter is more than in Step.

        1. Reject

      3. Stop location hole at location 1163

        1. Burred edges

        1. Refer to REPAIR-020 (VRS6101) TASK 72-41-21-300-020.

        2. If the diameter is between 0.2504 to 0.2535 inch (6.360 to 6.440 mm)

        1. Accept

        3. If the diameter is more than in Step.

        1. Reject

      4. Dowel holes at location 5

        1. Burred edges

        1. Refer to REPAIR-020 (VRS6101) TASK 72-41-21-300-020.

        2. If the diameter is between 0.220 to 0.232 inch (5.58 to 5.89 mm)

        1. Accept

        3. More than in Step.

        1. Reject

    5. SUBTASK 72-41-21-220-730 Examine the Stage 12 Rotor Path Case Assembly Location Dowel at Location 1184

    1. Refer to Figure.

      2. Loose

      1. Reject

      3. Outer diameter

        1. If the outer diameter is between 0.303 and 0.305 inch (7.70 and 7.75 mm)

        1. Accept

        2. Less than in Step.

        1. Reject

    6. SUBTASK 72-41-21-220-731 Examine the Stage 12 Rotor Path Case Assembly Borescope Access Hole at Location 6

    1. Refer to Figure.

      2. Burred edges

      1. Refer to REPAIR-020 (VRS6101) TASK 72-41-21-300-020.

      3. Scratched

      1. Refer to REPAIR-020 (VRS6101) TASK 72-41-21-300-020.

      4. Loose rivets

      1. Refer to REPAIR-081 (VRS6352) TASK 72-41-21-300-081.

    7. SUBTASK 72-41-21-220-732 Examine the Stage 12 Rotor Path Case Assembly Lining at Location 1055

    1. Refer to Figure.

      2. Scored

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

        1. Accept

        2. More than in Step.

        1. Refer to REPAIR-022 (VRS6024) TASK 72-41-21-300-022.

      3. Chipped

      1. Refer to REPAIR-022 (VRS6024) TASK 72-41-21-300-022.

      4. Worn

        1. If the radius is between 10.300 to 10.304 inch (261.62 to 261.72 mm)

        1. Accept

        2. More than in Step.

        1. Refer to REPAIR-022 (VRS6024) TASK 72-41-21-300-022.

    8. SUBTASK 72-41-21-220-733 Examine the Stage 12 Rotor Path Case Assembly Groove at Location 1141

    1. Refer to Figure.

      2. Scored or galled

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

        1. Accept

        2. More than in Step.

        1. Reject

      3. Worn

        1. If the width of the groove is between 0.1350 inch to 0.1382 inch (3.43 to 3.51 mm)

        1. Accept

        2. More than in Step.

        1. Reject

    9. SUBTASK 72-41-21-220-734 Examine the Dimension A

    1. Refer to Figure.

      2. If the dimension is between 0.158 and 0.163 inch (4.01 and 4.14 mm)

      1. Accept

      3. More than in Step.

      1. Refer to REPAIR-086 (VRS6172) V2500-A0-72-41-2130-00A-609A-C.

    10. SUBTASK 72-41-21-220-735 Examine the Stage 12 Rotor Path Ring Face at Location 3

    1. Refer to Figure.

      2. Galled

      1. Refer to REPAIR-086 (VRS6172) V2500-A0-72-41-2130-00A-609A-C.

      3. Scored

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

        1. Accept

        2. More than in Step.

        1. Refer to REPAIR-086 (VRS6172) TASK 72-41-21-300-086.

    11. SUBTASK 72-41-21-220-736 Examine the Stage 12 Rotor Path Case Assembly Remaining Surfaces

    1. Refer to Figure.

      2. Nicked, galled or scored

        1. Not more than 0.002 inch (0.05 mm)

        1. Accept

        2. More than in Step.

        1. Refer to REPAIR-020 (VRS6101) TASK 72-41-21-300-020.

    12. Figure: Stage 12 Rotor Path Case Assembly - Inspection Locations

    Stage 12 Rotor Path Case Assembly - Inspection Locations

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Added new Inspection-013. (14VC241)