TASK 72-32-81-200-001-B00 LPC Stage 1.5 - 2.5 Drum Disk - Examine The Disk, Inspection-001

DMC:V2500-A0-72-32-8100-00B-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 72-32-81-200-001-B00 LPC Stage 1.5 - 2.5 Drum Disk - Examine The Disk, Inspection-001

Effectivity

FIG/ITEM

PART NO.

02-200

5R0159

General

This TASK gives the procedure for the inspection of the disk.

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 70-20-00-200-501.

All the parts must be cleaned before any part is examined. Refer to the TASK 72-32-81-100-000 (CLEANING-000)

All 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 the 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 parts must be examined to make sure that all repairs have been 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 the data on these items.

Definitions of Damage, SPM TASK 70-02-02-350-501

Record of Control of the Lives of Parts, SPM TASK 70-05-00-200-501

Inspection of Parts, SPM TASK 70-20-00-200-501

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

NameManufacturerPart Number / IdentificationQuantityRemark
Fluorescent Penetrant Inspection EquipmentLOCALFluorescent penetrant inspection equipment

Consumables, Materials and Expendables

NONE

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-32-81-230-055 Examine the Disk (02-200) for Cracks

    1. Clean the parts. Refer to TASK 72-32-81-100-000 (CLEANING-000).

      2. Do the test for cracks on the parts that are given below. Use the applicable penetrant procedure.

        PART IDENT

        TASK/SUBTASK

        Disk

        1. Cracked

        1. Reject

    2. SUBTASK 72-32-81-220-062 Examine the Disk (02-200) Knife Edge Seals at Locations 0661, 0662, 0663, 0664 and 0665

    1. Refer to Figure.

      2. Worn.

        1. Location 0661.

          1. If the diameter is between 28.1574 and 28.1132 in. (715.200 and 714.075 mm)

          1. Accept

          2. Less than 28.1132 in. (714.075 mm)

          1. Reject

        2. Location 0662.

          1. If the diameter is between 29.4803 and 29.4361 in. (748.800 and 747.675 mm)

          1. Accept

          2. Less than 29.4361 in. (747.675 mm)

          1. Reject

        3. Location 0663.

          1. If the diameter is between 30.5748 and 30.5306 in. (776.600 and 775.475 mm)

          1. Accept

          2. Less than 30.5306 in. (775.475 mm)

          1. Reject

        4. Location 0664.

          1. If the diameter is between 28.9763 and 28.9321 in. (736.000 and 734.875 mm)

          1. Accept

          2. Less than 28.9321 in. (734.875 mm)

          1. Reject

        5. Location 0665.

          1. If the diameter is between 28.6614 and 28.6172 in. (728.000 and 726.875 mm)

          1. Accept

          2. Less than 28.6172 in. (726.875 mm)

          1. Reject

        6. Bent, nicked or dented.

          1. In the limits of VRS1862

          1. Repair, VRS1862 TASK 72-32-81-300-006 (REPAIR-006)

          2. More than in Step

          1. Reject

    3. SUBTASK 72-32-81-220-063 Examine the Disk (02-200) Dovetail Slot

    1. Refer to Figure.

      2. Examine the dovetail slot at location 1.

        1. Galled.

          1. Bedding witness/marking of no apparent depth

          1. Accept

          2. More than in Step

          1. Reject

    4. SUBTASK 72-32-81-220-064 Examine the Disk (02-200) Bolt Holes

    1. Refer to Figure.

      2. Examine the bolt holes at location 3.

        1. Burred or scored

        1. Reject

    5. SUBTASK 72-32-81-220-065 Examine the Disk (02-200) Spigot Diameter

    1. Refer to Figure.

      2. Examine the spigot diameter at location 0108.

        1. Scored

        1. Repair, VRS1861 TASK 72-32-81-300-005 (REPAIR-005)

        2. Worn

          1. If the bore diameter is less than 11.8052 in. (299.852 mm)

          1. Accept

        2. Write down the dimension of the diameter.

          3. More than in Step

          1. Repair, VRS1872 TASK 72-32-81-300-007 (REPAIR-007)

    6. SUBTASK 72-32-81-220-066 Examine the Disk (02-200) Oil Drain Hole

    1. Refer to Figure.

      2. Examine the oil drain hole at location 2.

        1. Plugged

        1. Clean, refer to TASK 72-32-81-100-000 (CLEANING-000)

        2. Nicked or dented

        1. Reject

    7. SUBTASK 72-32-81-220-067 Examine the Disk (02-200) all other Outer Surfaces

    1. Refer to Figure.

      2. Examine all other disk outer surfaces.

        1. Nicked

        1. Repair, VRS1861 TASK 72-32-81-300-005 (REPAIR-005)

    8. SUBTASK 72-32-81-220-071 Examine the Disk (02-200) for the Maximum Life of the Part (Cycles)

    1. Refer to Figure.

    2. NOTE

      You can get the new engine cycles from the engine operating records.

      Examine the disk at detail A for the total number of engine cycles that was marked before (at each disassembly).

      3. Calculate the new total number of engine cycles for the disk.

      1. Add the new engine cycles since the last inspection to the total number of engine cycles that is marked on the disk.

    4. Do not install the disk if the total number of engine cycles is more than the maximum cycles given in Time Limits Manual (Pubs Ref T-V2500-1IA) TASK 05-10-01-200-001 (GROUP A PARTS LIVES, CONFIG-002 and CONFIG-003).

      5. Mark the new total number of engine cycles on the disk.

      1. Vibro-engrave the new total number at detail A, refer to the SPM TASK 70-09-00-400-501.

    9. SUBTASK 72-32-81-220-085 Examine the Disk (02-200) Jacking Pad Screws

    1. Refer to: Figure.

      2. Examine the jacking pad screw at location 4.

        1. Damage of the threads

        1. Repair, TASK 72-32-81-300-010 (REPAIR-010)

        2. Loose or missing

        1. Repair, TASK 72-32-81-300-010 (REPAIR-010)

    10. Figure: Location of the LP compressor disk

    Location of the LP compressor disk

Requirements After Job Completion

Follow-On Conditions

NONE
Manufacturer Code:LOCAL
Enterprise Name:LOCALLY SUPPLIED
Manufacturer Code:LOCAL
Tool Number:Fluorescent penetrant inspection equipment
Tool Name:Fluorescent Penetrant Inspection Equipment