TASK 72-41-31-200-005-B00 HPC Stage 6 Rotor Path Segment - Examine, Inspection-005

DMC:V2500-A0-72-41-3116-00B-300A-C|Issue No:002.00|Issue Date:2017-11-01

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 72-41-31-200-005-B00 HPC Stage 6 Rotor Path Segment - Examine, Inspection-005

Effectivity

FIG/ITEM PART NO.

01-705

6A4723

General

This TASK gives the procedure for the inspection of the stage 6 rotor path ring segments.

Fig/item numbers in parentheses in the procedure agree with those used in 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 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 numbers are in the SPM.

The segments must be kept as a full set and examined as a full set. If one segment is rejected then the set must be rejected.Repair segments as necessary. Replacement set of segments to be final machined on re-assembly.

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 72-41-31-230-082 Examine the Stage 6 Rotor Path Ring Segments for Cracks

    1. Clean the parts. Refer to TASK 72-41-31-100-000 (CLEANING-000).

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

        PART IDENT TASK/SUBTASK

        Stage 6 rotor path ring segments

        SPM TASK 70-23-02-230-501

        1. Cracked

        1. Reject

    2. SUBTASK 72-41-31-220-172 Examine the Stage 6 Rotor Path Ring Segments Lining at location 1

      NOTE

      Accept or reject as set. Rejected set must be re-lined before use in a new set.

    1. Refer to Figure.

      2. Gouged

      1. Reject

      3. Chipped

      1. Reject

      4. Scored

      1. Reject

    3. SUBTASK 72-41-31-220-173 Examine the Stage 6 Rotor Path Ring Segments Lands at Locations 1245

    1. Refer to Figure.

      2. Scored.

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

        1. Accept

        2. More than in step Step.

        1. Repair, VRS6032, TASK 72-41-31-300-004 (REPAIR-004)

      3. Scratched.

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

        1. Accept

        2. More than in step Step.

        1. Repair, VRS6032, TASK 72-41-31-300-004 (REPAIR-004)

      4. Wear.

        1. If the thickness of the land is between 0.110 to 0.112 in. (2.798 to 2.848 mm)

        1. Accept

        2. If the thickness of the land is less than in step Step.

        1. Reject

    4. SUBTASK 72-41-31-220-174 Examine the Stage 6 Rotor Path Ring Segments Groove at Locations 1247 and 1248

    1. Refer to Figure.

      2. Scored.

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

        1. Accept

        2. More than in step Step.

        1. Reject

      3. Scratched.

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

        1. Accept

        2. More than in step Step.

        1. Reject

      4. Wear at location 1247.

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

        1. Accept

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

        1. Reject

      5. Wear at location 1248.

        1. If the groove width is between 0.135 to 0.137 in. (3.43 to 3.48 mm)

        1. Accept

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

        1. Reject

    5. SUBTASK 72-41-31-220-175 Examine the Stage 6 Rotor Path Ring Segments Faces at Locations 2 and 3

    1. Refer to Figure.

      2. Scored.

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

        1. Accept

        2. More than in step Step.

        1. Reject

      3. Scratched.

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

        1. Accept

        2. More than in step Step.

        1. Reject

    6. SUBTASK 72-41-31-220-176 Examine the Stage 6 Rotor Path Ring Segments all Remaining Surfaces

      1. Nicked, dented, scratched and burred.

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

        1. Accept

        2. More than in step Step.

        1. Reject

    7. Figure: Stage 6 rotor path ring segments - Inspection locations

    Stage 6 rotor path ring segments - Inspection locations

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Customer Request per CAS-39223-D5F1Q2 to fix incorrect reference to wrong step.

Change Type:

Editorial fixes - adding links to steps only based on Eaglenet Request CAS-39223-D5F1Q2