TASK 72-32-83-200-010 LPC Stage 2.3 Stator - Examine, Inspection-010

DMC:V2500-A0-72-32-8323-00A-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 72-32-83-200-010 LPC Stage 2.3 Stator - Examine, Inspection-010

Effectivity

FIG/ITEM

PART NO.

02-250

5A1412

General

This TASK gives the procedure for the inspection of the LP compressor stage 2.3 stator assembly. For the other LP compressor booster stage vanes parts, refer to TASK 72-32-83-200-000 (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. Refer to TASK 72-32-83-100-000 (CLEANING-000).

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 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 could be shown to be necessary at a later 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 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 is 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 72-32-83-230-067 Examine the LP Compressor Stage 2.3 Stator Assembly (02-250) for Cracks

    1. Clean the parts. Refer to TASK 72-32-83-100-000 (CLEANING-000).

    2. Do the crack test on the parts that are given below.

      PART IDENT

      TASK/SUBTASK

      LP compressor stage 2.3 stator assembly

      3. Inner shroud ring.

        1. Cracked

        1. Reject

      4. Vanes.

        1. Cracked

        1. Repair, VRS1754, TASK 72-32-83-300-040 (REPAIR-040)

    2. SUBTASK 72-32-83-220-139 Examine the LP Compressor Stage 2.3 Stator Assembly (02-250) Leading Edge

    1. Refer to Figure.

      2. Examine the leading edge at Location 7.

        1. Dented.

          1. In zone A

          1. Repair, VRS1754, TASK 72-32-83-300-040 (REPAIR-040)

          2. In area other than in Step

          1. Up to 0.040 in. (1.01 mm) in depth

          2. Repair, VRS1753, TASK 72-32-83-300-041 (REPAIR-041)

          3. More than 0.040 in. (1.01 mm) in depth

          4. Repair, VRS1754, TASK 72-32-83-300-040 (REPAIR-040)

        2. Nicked.

          1. In zone A

          1. Repair, VRS 1754, TASK 72-32-83-300-040 (REPAIR-040)

          2. In area other than in Step

          1. Up to 0.040 in. (1.01 mm) in depth

          2. Repair, VRS1753, TASK 72-32-83-300-041 (REPAIR-041)

          3. More than 0.040 in. (1.01 mm) in depth

          4. Repair, VRS1754, TASK 72-32-83-300-040 (REPAIR-040)

        3. Cracked

        1. Refer to Step

    3. SUBTASK 72-32-83-220-140 Examine the LP Compressor Stage 2.3 Stator Assembly (02-250) Trailing Edge

    1. Refer to Figure.

      2. Examine the trailing edge at Location 3.

        1. Dented.

          1. In zone A

          1. Repair, VRS1754, TASK 72-32-83-300-040 (REPAIR-040)

          2. In area other than in Step.

          1. Up to 0.040 in. (1.01 mm) in depth

          2. Repair, VRS1753, TASK 72-32-83-300-041 (REPAIR-041)

          3. More than 0.040 in. (1.01 mm) in depth

          4. Repair, VRS1754, TASK 72-32-83-300-040 (REPAIR-040)

        2. Nicked.

          1. In zone A

          1. Repair, VRS1754, TASK 72-32-83-300-040 (REPAIR-040)

          2. In area other than in Step

          1. Up to 0.040 in. (1.01 mm) in depth

          2. Repair, VRS1753, TASK 72-32-83-300-041 (REPAIR-041)

          3. More than 0.040 in. (1.01 mm) in depth

          4. Repair, VRS1754, TASK 72-32-83-300-040 (REPAIR-040)

        3. Cracked

        1. Refer to Step

    4. SUBTASK 72-32-83-220-141 Examine the LP Compressor Stage 2.3 Stator Assembly (02-250) Convex and Concave Airfoil Surfaces

    1. Refer to Figure.

      2. Examine the convex and concave airfoil surfaces at Location 4.

        1. Dented.

          1. In zone A

          1. Repair, VRS1754, TASK 72-32-83-300-040 (REPAIR-040)

          2. In area other than in Step

          1. Up to 0.010 in. (0.25 mm) in depth

          2. Repair, VRS1753, TASK 72-32-83-300-041 (REPAIR-041)

          3. More than 0.010 in. (0.25 mm) in depth

          4. Repair, VRS1754, TASK 72-32-83-300-040 (REPAIR-040)

          5. To cause a protrusion on opposite side of the airfoil

          6. Repair, VRS1754, TASK 72-32-83-300-040 (REPAIR-040)

        2. Nicked.

          1. In zone A

          1. Repair, VRS1754, TASK 72-32-83-300-040 (REPAIR-040)

          2. In area other than in Step

          1. Up to 0.010 in. (0.25 mm) in depth

          2. Repair, VRS1753, TASK 72-32-83-300-041 (REPAIR-041)

          3. More than 0.010 in. (0.25 mm) in depth

          4. Repair, VRS1754, TASK 72-32-83-300-040 (REPAIR-040)

          5. To cause a protrusion on opposite side of the airfoil

          6. Repair, VRS1754, TASK 72-32-83-300-040 (REPAIR-040)

    5. SUBTASK 72-32-83-220-142 Examine the LP Compressor Stage 2.3 Stator Assembly (02-250) Outer Platform

    1. Refer to Figure.

      2. Examine the outer platform at Location 1.

        1. Galled.

          1. Up to 0.005 in. (0.12 mm) in depth

          1. Repair, VRS1755, TASK 72-32-83-300-042 (REPAIR-042)

          2. More than 0.0005 in. (0.12 mm) in depth

          1. Repair, VRS1754, TASK 72-32-83-300-040 (REPAIR-040)

        2. Worn bolt holes.

          1. Up to 0.010 in. (0.25 mm) in depth

          1. Repair, VRS1755, TASK 72-32-83-300-042 (REPAIR-042)

          2. More than 0.010 in. (0.25 mm) in depth

          1. Repair, VRS1754, TASK 72-32-83-300-040 (REPAIR-040)

    6. SUBTASK 72-32-83-220-143 Examine the LP Compressor Stage 2.3 Stator Assembly (02-250) Inner Shroud Ring

    1. Refer to Figure.

      2. Examine the inner shroud ring at Location 5.

        1. Corroded

        1. Repair, VRS1383, TASK 72-32-83-300-050 (REPAIR-050)

        2. Nicked

          1. Up to 0.010 in. (0.25 mm) in depth

          1. Accept

          2. More than 0.010 in. (0.25 mm) in depth

          1. Repair, VRS1383, TASK 72-32-83-300-050 (REPAIR-050)**

        3. Dented.

          1. Up to 0.010 in. (0.25 mm) in depth

          1. Accept

          2. More than 0.010 in. (0.25 mm) in depth

          1. Repair, VRS1383, TASK 72-32-83-300-050 (REPAIR-050)

    7. SUBTASK 72-32-83-220-144 Examine the LP Compressor Stage 2.3 Stator Assembly (02-250) Molding Rubber

    1. Refer to Figure.

      2. Examine the molding rubber at Location 8.

        1. Peeled.

          1. Up to 30 per cent of each section length at Location 8

          1. Accept

          2. More than in Step

          1. Repair, VRS1754, TASK 72-32-83-300-040 (REPAIR-040)

    8. SUBTASK 72-32-83-220-145 Examine the LP Compressor Stage 2.3 Stator Assembly (02-250) Abradable Seal

    1. Refer to Figure.

      2. Examine the abradable seal at Location 6.

        1. Rubbed by the seal fins.

          1. Up to 0.040 in. (1.01 mm) in depth

          1. Accept

          2. More than 0.040 in. (1.01 mm) in depth

          1. Repair, VRS1756, TASK 72-32-83-300-043 (REPAIR-043)

        2. Worn.

          1. If the inner diameter is between 28.697 and 28.704 in. (728.90 and 729.10 mm)

          1. Accept

          2. More than 28.704 in. (729.10 mm)

          1. Repair, VRS1756, TASK 72-32-83-300-043 (REPAIR-043)

      3. Examine the abradable seal at Location 9.

        1. Rubbed by the seal fins.

          1. Up to 0.040 in. (1.01 mm) in depth

          1. Accept

          2. More than 0.040 in. (1.01 mm) in depth

          1. Repair, VRS1756, TASK 72-32-83-300-043 (REPAIR-043)

        2. Worn.

          1. If the inner diameter is between 29.012 and 29.019 in. (736.90 and 737.10 mm)

          1. Accept

          2. More than 29.019 in. (737.10 mm)

          1. Repair, VRS1756, TASK 72-32-83-300-043 (REPAIR-043)**

    9. SUBTASK 72-32-83-220-146 Examine the LP Compressor Stage 2.3 Stator Assembly (02-250) Platform Flowpath Surface

    1. Refer to Figure.

      2. Examine the flowpath at Location 2.

        1. Scratched.

          1. Up to 0.008 in. (0.20 mm) in depth

          1. Repair, VRS1755, TASK 72-32-83-300-042 (REPAIR-042)

          2. More than 0.008 in. (0.20 mm) in depth

          1. Repair, VRS1754, TASK 72-32-83-300-040 (REPAIR-040)

        2. Nicked.

          1. Up to 0.008 in. (0.20 mm) in depth

          1. Repair, VRS1755, TASK 72-32-83-300-042 (REPAIR-042)

          2. More than 0.008 in. (0.20 mm) in depth

          1. Repair, VRS1754, TASK 72-32-83-300-040 (REPAIR-040)

        3. Dented.

          1. Up to 0.008 in. (0.20 mm) in depth

          1. Repair, VRS1755, TASK 72-32-83-300-042 (REPAIR-042)

          2. More than 0.008 in. (0.20 mm) in depth

          1. Repair, VRS1754, TASK 72-32-83-300-040 (REPAIR-040)

    10. Figure: Locations on the LP Compressor Stage 2.3 Stator Assembly

    Locations on the LP Compressor Stage 2.3 Stator Assembly

Requirements After Job Completion

Follow-On Conditions

NONE