TASK 72-32-83-200-001-A00 LPC Front Case - Examine, Inspection-001

DMC:V2500-A0-72-32-8330-00A-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 72-32-83-200-001-A00 LPC Front Case - Examine, Inspection-001

Effectivity

FIG/ITEM

PART NO.

01-350

5A0062

01-350

5A0961

01-350

5A7399

01-350

5A1814

General

This TASK gives the procedure for the inspection of the LPC front case assembly.

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.

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.

Definition of Damages, 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 72-32-83-230-056 Examine the LPC Front Case Assembly (01-350) for Cracks

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

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

        PART IDENT

        TASK/SUBTASK

        LPC front case assembly

        1. Cracked

        1. Reject

    2. SUBTASK 72-32-83-220-056 Examine the LPC Front Case Assembly (01-350) All Surfaces

    1. Refer to Figure.

      2. Examine all surfaces which are not identified by a number.

        1. Corroded

        1. Repair, VRS1390 TASK 72-32-83-300-004 (REPAIR-004)

        2. Pitted

        1. Repair, VRS1390 TASK 72-32-83-300-004 (REPAIR-004)

        3. Nicked

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

          1. Accept

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

          1. Repair, VRS1390 TASK 72-32-83-300-004 (REPAIR-004)

        4. Scratched.

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

          1. Accept

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

          1. Repair, VRS1390 TASK 72-32-83-300-004 (REPAIR-004)

        5. Dented.

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

          1. Accept

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

          1. Repair, VRS1390 TASK 72-32-83-300-004 (REPAIR-004)

    3. SUBTASK 72-32-83-220-057 Examine the LPC Front Case Assembly (01-350) Diameter

    1. Refer to Figure.

      2. Examine the diameter at location 1.

        1. Worn.

          1. If the diameter is between 37.363 and 37.367 in. (949.00 and 949.14 mm)

          1. Accept

          2. Less than 37.363 in. (949.00 mm)

          1. Repair, VRS1388 TASK 72-32-83-300-008 (REPAIR-008)

        2. Nicked, scratched and dented

        1. Repair, VRS1390 TASK 72-32-83-300-004 (REPAIR-004)

        3. Corroded or pitted

        1. Repair, VRS1390 TASK 72-32-83-300-004 (REPAIR-004)

      3. Examine the diameter at location 2.

        1. Worn.

          1. If the diameter is between 37.205 and 37.210 in. (945.00 and 945.14 mm)

          1. Accept

          2. Less than 37.205 in. (945.00 mm)

          1. Repair, VRS1388 TASK 72-32-83-300-008 (REPAIR-008)

        2. Nicked, scratched and dented

        1. Repair, VRS1390 TASK 72-32-83-300-004 (REPAIR-004)

        3. Corroded or pitted

        1. Repair, VRS1390 TASK 72-32-83-300-004 (REPAIR-004)

    4. SUBTASK 72-32-83-220-058 Examine the LPC Front Case Assembly (01-350) Snap Diameter

    1. Refer to Figure.

      2. Examine the snap diameter at location 3.

        1. Worn.

          1. If the diameter is between 35.835 and 35.838 in. (910.19 and 910.29 mm)

          1. Accept

          2. Less than 35.835 in. (910.19 mm)

          1. Repair, VRS1389 TASK 72-32-83-300-009 (REPAIR-009)

        2. Nicked, scratched and dented

        1. Repair, VRS1390 TASK 72-32-83-300-004 (REPAIR-004)

        3. Corroded or pitted

        1. Repair, VRS1390 TASK 72-32-83-300-004 (REPAIR-004)

    5. SUBTASK 72-32-83-220-059 Examine the LPC Front Case Assembly (01-350) Abradable Coating

    1. Refer to Figure.

      2. Examine the abradable coating at location 4.

        1. Deterioration

        1. Repair, VRS1391 TASK 72-32-83-300-010 (REPAIR-010)

        2. Worn.

          1. Up to 0.030 in. (0.76 mm) in depth

          1. Accept

          2. More than in Step

          1. Repair, VRS1391 TASK 72-32-83-300-010 (REPAIR-010)

        3. Rubbed.

          1. Up to 0.030 in. (0.76 mm) in depth

          1. Accept

          2. More than in Step

          1. Repair, VRS1391 TASK 72-32-83-300-010 (REPAIR-010)

        4. Unbonded

        1. Repair, VRS1391 TASK 72-32-83-300-010 (REPAIR-010)

    6. SUBTASK 72-32-83-220-060 Examine the LPC Front Case Assembly (01-350) Faces

    1. Refer to Figure.

      2. Examine the face A at location 5.

        1. Galled

        1. Repair, VRS1390 TASK 72-32-83-300-004 (REPAIR-004)

        2. Nicked, scratched and dented

        1. Repair, VRS1390 TASK 72-32-83-300-004 (REPAIR-004)

        3. Corroded or pitted

        1. Repair, VRS1390 TASK 72-32-83-300-004 (REPAIR-004)

      3. Examine the face B at location 6.

        1. Galled

        1. Repair, VRS1390 TASK 72-32-83-300-004 (REPAIR-004)

        2. Nicked, scratched and dented

        1. Repair, VRS1390 TASK 72-32-83-300-004 (REPAIR-004)

        3. Corroded or pitted

        1. Repair, VRS1390 TASK 72-32-83-300-004 (REPAIR-004)

    7. SUBTASK 72-32-83-220-061 Examine the LPC Front Case Assembly (01-350) Groove

    1. Refer to Figure.

      2. Examine the groove at location 7.

        1. Worn.

          1. If the width of the groove is between 0.119 and 0.124 in. (3.00 and 3.15 mm)

          1. Accept

          2. More than 0.124 in. (3.15 mm)

          1. Reject

        2. Scratched

        1. Repair, VRS1390 TASK 72-32-83-300-004 (REPAIR-004)

        3. Corroded or pitted

        1. Repair, VRS1390 TASK 72-32-83-300-004 (REPAIR-004)

    8. SUBTASK 72-32-83-220-062 Examine the LPC Front Case Assembly (01-350) Bolt Holes

    1. Refer to Figure.

      2. Examine the bolt holes at location 8.

        1. Galled

        1. Repair, VRS1390 TASK 72-32-83-300-004 (REPAIR-004)

        2. Cracked

        1. Reject

        3. Burred

        1. Repair, VRS1390 TASK 72-32-83-300-004 (REPAIR-004)

        4. Nicked, scratched and dented

        1. Repair, VRS1390 TASK 72-32-83-300-004 (REPAIR-004)

        5. Corroded or pitted

        1. Repair, VRS1390 TASK 72-32-83-300-004 (REPAIR-004)

    9. SUBTASK 72-32-83-220-063 Examine the LPC Front Case Assembly (01-350) Nuts

    1. Refer to Figure.

      2. Examine the nuts at location 9.

        1. Loose or missing.

          1. Up to 4 places per flange, if two consecutive nuts are not damaged

          1. Accept

          2. More than in Step

          1. Repair, VRS1382 TASK 72-32-83-300-007 (REPAIR-007)

        2. Crossed.

          1. Up to 4 places per flange, if two consecutive nuts are not damaged

          1. Accept

          2. More than in Step

          1. Repair, VRS1382 TASK 72-32-83-300-007 (REPAIR-007)

        3. Stripped threads.

          1. Up to 4 places per flange, if two consecutive nuts are not damaged

          1. Accept

          2. More than in Step

          1. Repair, VRS1382 TASK 72-32-83-300-007 (REPAIR-007)

    10. Figure: Locations on the LPC front case assembly

    Locations on the LPC front case assembly

Requirements After Job Completion

Follow-On Conditions

NONE