TASK 72-41-21-200-011-E00 HPC Stage 11 Rotor Path Case Assembly - Examine, lnspection-011

DMC:V2500-A5-72-41-2111-00E-300A-C|Issue No:003.00|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-E00 HPC Stage 11 Rotor Path Case Assembly - Examine, lnspection-011

Effectivity

FIG/ITEM

PART NO.

04-350

6B1435

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 variant 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 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 could be shown to be necessary at a subsequent date.

All parts must be examined to make sure that all the repairs are completed satisfactorily.

The practices and processes referred to in the procedure by the TASK/SUBTASK numbers are in the SPM.

References

Refer to the SPM for data on these items:

Definitions 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 72-41-21-230-249 Examine the Stage 11 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

        Stage 11 Rotor Path Case Assembly

        1. Cracked

        1. Reject

    2. SUBTASK 72-41-21-220-737 Examine the Stage 11 Rotor Path Case Assembly Front and Rear Flanges at Face Locations 1 and 2

    1. Refer to Figure.

      2. Galled

        1. Not more than 0.002 in. (0.051 mm) in depth.

        1. Accept

        2. More than in Step.

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

      3. Scored

        1. Not more than 0.002 in. (0.051 mm) in depth.

        1. Accept

        2. More than in Step.

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

    3. SUBTASK 72-41-21-220-738 Examine the Stage 11 Rotor Path Case Assembly Boltholes at Locations 3 and 4

    1. Refer to Figure.

      2. Scoring or burred edges

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

    4. SUBTASK 72-41-21-220-739 Examine the Stage 11 Rotor Path Case Assembly Holes at Locations 5, 1196 and 1159

    1. Refer to Figure.

      2. Location dowel hole at location 1196.

        1. Burred edges

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

        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

      3. Stop location hole at location 1159.

        1. Burred edges

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

        2. If the diameter is between 0.196 in. and 0.200 in. (4.978 mm and 5.075 mm)

        1. Accept

        3. If the diameter is more than in Step.

        1. Reject

      4. Holes 5.

        1. Burred edges

        1. Refer to 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. If the diameter is more than in Step.

        1. Reject

    5. SUBTASK 72-41-21-220-740 Examine the Stage 11 Rotor Path Case Assembly Location Dowel at Location 1199

    1. Refer to Figure.

      2. Loose

      1. Reject

      3. Outer diameter

        1. If the outer diameter is between 0.1580 in. and 0.1584 in. (4.012 mm and 4.024 mm)

        1. Accept

        2. If the outer diameter is less than in Step

        1. Reject

    6. SUBTASK 72-41-21-220-741 Examine the Stage 11 Rotor Path Case Assembly Bores at Location 1110

    1. Refer to Figure.

      2. Dimensionally measure the diameter at bore 1110.

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

        1. Accept

        2. If the diameter is more than in Step.

        1. Reject

    7. SUBTASK 72-41-21-220-742 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 0.1154 in. and 0.118 in. (2.93 mm and 2.99 mm)

        1. Accept

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

        1. Reject

    8. SUBTASK 72-41-21-220-743 Examine the Stage 11 Rotor Path Case Assembly Lining at Location 1054

    1. Refer to Figure.

      2. Scored

        1. Not more than 0.005 in. (0.127 mm) in depth.

        1. Accept

        2. More than in Step.

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

        3. Chipped

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

      3. Worn

        1. If the lining radius is between 10.300 in. and 10.304 in. (261.62 mm and 261.722 mm)

        1. Accept

        2. More than in Step.

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

    9. SUBTASK 72-41-21-220-744 Examine the Stage 11 Rotor Path Case Assembly Faces at Location 1165

    1. Refer to Figure.

      2. Galled or scored

        1. Not more than 0.002 in. (0.051 mm) in depth.

        1. Accept

        2. More than in Step.

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

      3. Location 1165

        1. If the diameter is between 21.3504 in. and 21.3551 in. (542.300 mm and 542.419 mm)

        1. Accept

        2. Less than in Step.

        1. Reject

    10. SUBTASK 72-41-21-220-745 Examine the Stage 11 Rotor Path Case Assembly Surface Protection

      1. Damaged

      1. Refer to Repair, VRS6533 TASK 72-41-21-300-093 (REPAIR-093).

    11. SUBTASK 72-41-21-220-746 Examine all the Stage 11 Rotor Path Case Assembly Remaining Surfaces

      1. Nicked, galled or scored

        1. Not more than 0.002 in. (0.051 mm) in depth.

        1. Accept

        2. More than in Step.

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

    12. SUBTASK 72-41-21-220-595 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.

    13. 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)