TASK 72-41-21-200-009-B00 HPC Stage 10 Rotor Path Ring - Examine, Inspection-009

DMC:V2500-A0-72-41-2126-00B-300A-C|Issue No:001.00|Issue Date:2013-11-01

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 72-41-21-200-009-B00 HPC Stage 10 Rotor Path Ring - Examine, Inspection-009

Effectivity

FIG/ITEM PART NO.

04-300

6A4164

General

This TASK gives the procedure for the inspection of the stage 10 rotor path ring. For the other parts of the HP compressor ring cases, refer to TASK 72-41-21-200-000 (INSPECTION-000).

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 the 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 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 is contained in this TASK. For more data on these items refer to the 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 72-41-21-230-137 Examine the Stage 10 Rotor Path Ring 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 10 rotor path ring

        TASK

        TASK 70-23-02-230-501

        1. Cracked

        1. Reject

    2. SUBTASK 72-41-21-220-318 Examine the Stage 10 Rotor Path Ring Lining at Location 1053

    1. Refer to Figure.

      2. Scored.

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

        1. Accept

        2. More than in (1)

        1. Repair, VRS6022 TASK 72-41-21-300-016 (REPAIR-016)

      3. Chipped.

      1. Repair, VRS6022 TASK 72-41-21-300-016 (REPAIR-016)

      4. Worn.

        1. If the radius is between 10.323 and 10.327in. (262.204 to 262.306 mm)

        1. Accept

        2. More than 10.327in. (262.306 mm)

        1. Repair, VRS6022 TASK 72-41-21-300-016 (REPAIR-016)

    3. SUBTASK 72-41-21-220-319 Examine the Stage 10 Rotor Path Ring Faces at Locations 1, 2, 1175 and 1110

    1. Refer to Figure.

      2. Galled.

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

        1. Accept

        2. More than in (1)

        1. Repair VRS6098, TASK 72-41-21-300-015 (REPAIR-015)

      3. Scored.

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

        1. Accept

        2. More than in (1)

        1. Repair VRS6098, TASK 72-41-21-300-015 (REPAIR-015)

      4. Location 1110.

        1. If the diameter is between 21.3504 and 21.3551 in. (542.300 and 542.420 mm)

        1. Accept

        2. Less than in (1)

        1. Reject

      5. Location 1175.

        1. If the diameter is between 21.3512 and 21.3543 in. (542.320 and 542.400 mm)

        1. Accept

        2. Less than in (1)

        1. Reject

    4. SUBTASK 72-41-21-220-320 Examine the Stage 10 Rotor Path Ring Bolt Holes at Location 3

    1. Refer to Figure.

      2. Scratched or with burred edges.

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

        1. Accept

        2. More than in (1)

        1. Repair, VRS6098 TASK 72-41-21-300-015 (REPAIR-015)

    5. SUBTASK 72-41-21-220-321 Examine the Stage 10 Rotor Path Ring Grooves at Locations 1131 and 1134

    1. Refer to: Figure.

      2. Scored or galled.

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

        1. Accept

        2. More than in (1)

        1. Reject

      3. Location 1131.

        1. If the width of the groove is between 0.1350 and 0.1370in. (3.43 and 3.48 mm)

        1. Accept

        2. More than 0.1370in. (3.48 mm)

        1. Reject

      4. Location 1134.

        1. If the width of the groove is between 0.115 and 0.117in. (2.93 and 2.98 mm)

        1. Accept

        2. More than 0.117in. (2.98 mm)

        1. Reject

    6. SUBTASK 72-41-21-220-322 Examine the Stage 10 Rotor Path Ring Location Dowel Hole at Location 1195

    1. Refer to Figure.

      2. Scratched or with burred edges.

      1. Reject

        2. Worn.

          1. If the diameter is between 0.315 and 0.329in. (8.00 and 8.36 mm)

          1. Accept

          2. More than 0.329in. (8.36 mm)

          1. Reject

    7. SUBTASK 72-41-21-220-323 Examine the Stage 10 Rotor Path Ring all Remaining Surfaces

      1. Nicked, dented or scratched.

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

        1. Accept

        2. More than in (1)

        1. Repair, VRS6098 TASK 72-41-21-300-015 (REPAIR-015)

    8. Figure: Stage 10 rotor path ring - inspection locations

    Stage 10 rotor path ring - inspection locations

Requirements After Job Completion

Follow-On Conditions

NONE