TASK 72-41-21-200-011-D00 HPC Stage 11 Case - Examine, Inspection-011

DMC:V2500-A0-72-41-2111-00C-300A-C|Issue No:004.00|Issue Date:2021-05-01

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 72-41-21-200-011-D00 HPC Stage 11 Case - Examine, Inspection-011

Effectivity

FIG/ITEM

PART NO.

04-350

6A6551

04-350

6A7531

General

This TASK gives the procedure for the inspection of the stage 11 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 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 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 72-41-21-230-222 Examine the Stage 11 Rotor Path Case Assembly for Cracks

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

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

        PART IDENT

        TASK/SUBTASK

        Stage 11 Rotor Path Case Assembly

        1. Cracked.

        1. Reject.

    2. SUBTASK 72-41-21-220-570 Examine the Stage 11 Rotor Path Case Assembly Front and Rear Flanges at Face Locations 1, 2, 1108 and 1109

    1. Refer to Figure.

      2. Galled.

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

        1. Accept.

        2. More than in Step.

        1. Repair, VRS6099 TASK 72-41-21-300-017 (REPAIR-017).

      3. Scored.

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

        1. Accept.

        2. More than in Step.

        1. Repair, VRS6099 TASK 72-41-21-300-017 (REPAIR-017).

      4. Faces 1108 and 1109.

        1. If the diameter is between 22.516 in. and 22.524 in. (571.90 mm and 572.10 mm).

        1. Accept.

        2. If the diameter is more than in Step.

        1. Reject.

    3. SUBTASK 72-41-21-220-571 Examine the Stage 11 Rotor Path Case Assembly Bolt Holes at Locations 3 and 4

    1. Refer to Figure.

      2. Burred edges.

      1. Repair, VRS6099 TASK 72-41-21-300-017 (REPAIR-017).

      3. Scored.

      1. Repair, VRS6099 TASK 72-41-21-300-017 (REPAIR-017).

    4. SUBTASK 72-41-21-220-572 Examine the Stage 11 Rotor Path Case Assembly Holes at Locations 5, 6, 1196 and 1159

    1. Refer to Figure.

      2. Location dowel hole 1196.

        1. Burred edges.

        1. Repair, VRS6099 TASK 72-41-21-300-017 (REPAIR-017).

        2. If the diameter is between 0.315 in. and 0.316 in. (8.00 mm and 8.02 mm).

        1. Accept.

        3. If the diameter is more than in Step.

        1. Reject.

      3. Stop location hole 1159.

        1. Burred edges.

        1. Repair, VRS6099 TASK 72-41-21-300-017 (REPAIR-017).

        2. If the diameter is between 0.196 in. and 0.200 in. (4.975 mm and 5.075 mm).

        1. Accept.

        3. If the diameter is more than in Step.

        1. Reject.

      4. Holes 5 and 6.

        1. Burred edges.

        1. Repair, VRS6099 TASK 72-41-21-300-017 (REPAIR-017).

        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.

    5. SUBTASK 72-41-21-220-573 Examine the Stage 11 Rotor Path Case Assembly Spacers at Locations 7 and 8

    1. Refer to Figure.

      2. Loose.

      1. Repair, VRS6253 TASK 72-41-21-300-040 (REPAIR-040).

      3. Spacers that are not there.

      1. Repair, VRS6253 TASK 72-41-21-300-040 (REPAIR-040).

    6. SUBTASK 72-41-21-220-574 Examine the Stage 11 Rotor Path Case Assembly Location Dowel at Locations 1198 and 1199

    1. Refer to Figure.

      2. Loose.

      1. Reject.

      3. Outer diameter.

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

        1. Accept.

        2. If the outer diameter is less than in Step.

        1. Reject.

    7. SUBTASK 72-41-21-220-575 Examine the Stage 11 Rotor Path Case Assembly Rivets at Location 9

    1. Refer to Figure.

      2. Loose.

      1. Repair, VRS6331 TASK 72-41-21-300-042 (REPAIR-042).

      3. Damaged.

      1. Repair, VRS6331 TASK 72-41-21-300-042 (REPAIR-042).

    8. SUBTASK 72-41-21-220-576 Examine the Stage 11 Rotor Path Case Assembly Sealing Ring at Location 10

    1. Refer to Figure.

      2. Binding.

        1. If the sealing ring can be moved by hand.

        1. Accept.

        2. If the sealing ring can not be moved by hand

        1. Repair, VRS6331 TASK 72-41-21-300-042 (REPAIR-042).

      3. Dimensionally measure the clearance between the sealing ring and the stage 11 rotor path case assembly.

        1. Up to 0.006 in. (0.14 mm).

        1. Accept.

        2. More than in Step.

        1. Repair, VRS6331 TASK 72-41-21-300-042 (REPAIR-042).

      4. Measure the sealing ring diameter.

        1. If the diameter is between 23.237 in. and 23.239 in. (590.23 mm and 590.28 mm).

        1. Accept.

        2. Less than in Step.

        1. Repair, VRS6331 TASK 72-41-21-300-042 (REPAIR-042).

    9. SUBTASK 72-41-21-220-577 Examine the Stage 11 Rotor Path Case Assembly Bores at Location 1110

    1. Refer to Figure.

      2. Dimensionally measure the diameter at Face 1110.

        1. If the diameter is between 21.344 in. to 21.348 in. (542.13 mm to 542.25 mm).

        1. Accept.

        2. If the diameter is more than in Step.

        1. Reject.

    10. SUBTASK 72-41-21-220-578 Examine the Stage 11 Rotor Path Case Assembly at Locations 1137 and 1139

    1. Refer to Figure.

      2. Location 1137 and 1139.

        1. If the width of the groove is between 0.115 in. to 0.119 in. (2.93 mm to 3.01 mm).

        1. Accept.

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

        1. Reject.

    11. SUBTASK 72-41-21-220-580 Examine the Stage 11 Rotor Path Case Assembly Lining at Location 1054

    1. Refer to Figure.

      2. Scored.

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

        1. Accept.

        2. More than in Step.

        1. Repair, VRS6023 TASK 72-41-21-300-019 (REPAIR-019).

        3. Chipped.

        1. Repair, VRS6023 TASK 72-41-21-300-019 (REPAIR-019).

      3. Worn.

        1. If the lining radius is between 10.301 in. and 10.303 in. (261.64 mm and 261.7 mm).

        1. Accept.

        2. More than 10.303 in. (261.7 mm).

        1. Repair, VRS6023 TASK 72-41-21-300-019 (REPAIR-019).

    12. SUBTASK 72-41-21-220-581 Examine the Stage 11 Rotor Path Case Assembly Faces at Locations 1113 and 1165

    1. Refer to Figure.

      2. Galled or scored.

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

        1. Accept.

        2. More than in Step.

        1. Repair, VRS6100 TASK 72-41-21-300-018 (REPAIR-018).

      3. Location 1113.

        1. If the diameter is between 22.5354 in. and 22.5433 in. (572.400 mm and 572.600 mm).

        1. Accept.

        2. Less than Step.

        1. Reject.

      4. Location 1165.

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

        1. Accept.

        2. Less than Step.

        1. Reject.

    13. SUBTASK 72-41-21-220-579 Examine the Stage 11 Rotor Path Case Assembly Surface Protection

      1. Damaged.

      1. Accept.

    14. SUBTASK 72-41-21-220-582 Examine the Stage 11 Rotor Path Case Assembly Remaining Surfaces

      1. Nicked, galled or scored.

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

        1. Accept.

        2. More than Step.

        1. Repair, VRS6099 TASK 72-41-21-300-017 (REPAIR-017).

    15. SUBTASK 72-41-21-220-594 Examine the Stage 11 Rotor Path Case Assembly Front and Rear Rotor Path Lining Retaining Recess Lips at Location 1120

    1. Refer to Figure.

      2. Nicked, galled, or gouged.

        1. A maximum of 0.002 in. (0.05 mm) in depth.

        1. Accept.

        2. More than Step to a maximum of 0.090 in. (2.29 mm) in radial depth, a maximum of 0.100 in. (2.54 mm) in axial width, and to a maximum of 0.450 in. (11.43 mm) in circumferential length.

        1. Repair, VRS9295 TASK 72-41-21-300-095 (REPAIR-095).

        3. More than Step.

        1. Reject.

    16. Figure: Stage 11 Rotor Path Case Assembly - Inspection Locations

    Stage 11 Rotor Path Case Assembly - Inspection Locations

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Added subtask and revised figure. (19VG229)