TASK 72-32-81-200-001-A00 LPC Stage 1.5 - 2.5 Drum Disk - Examine The Disk, Inspection-001

DMC:V2500-A0-72-32-8100-00A-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 72-32-81-200-001-A00 LPC Stage 1.5 - 2.5 Drum Disk - Examine The Disk, Inspection-001

Effectivity

FIG/ITEM

PART NO.

01-200

5R7021

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 70-20-01-200-501.

All the parts must be cleaned before any part is examined. Refer to 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 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 data on these items.

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

Record and Control of the Lives of Parts, SPM TASK 70-05-00-220-501

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

NameManufacturerPart Number / IdentificationQuantityRemark
Fluorescent Penetrant Inspection EquipmentLOCALFluorescent penetrant inspection equipment

Consumables, Materials and Expendables

NONE

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-32-81-230-052 Examine the Disk (01-200) for Cracks

      NOTE

      For the method to clean the part, refer to the SPM TASK 70-11-03-300-503.

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

      2. Do the crack test on the part that is given below. Use the applicable penetrant inspection procedure.

        PART IDENT

        TASK/SUBTASK

        Disk

        1. Cracked

        1. Reject

    2. SUBTASK 72-32-81-220-053 Examine the Disk (01-200) Knife Edge Seals at Locations 0661, 0662 and 0663

    1. Refer to Figure.

      2. Worn.

        1. Location 0661.

          1. If the diameter is between 25.6802 and 25.7244 in. (652.275 and 653.400 mm)

          1. Accept

          2. Less than 25.6802 in. (652.275 mm)

          1. Repair, VRS1366 TASK 72-32-81-300-004 (REPAIR-004)

        2. Location 0662.

          1. If the diameter is between 26.9164 and 26.9606 in. (683.675 and 684.800 mm)

          1. Accept

          2. Less than 26.9164 in. (683.675 mm)

          1. Repair, VRS1366 TASK 72-32-81-300-004 (REPAIR-004)

        3. Location 0663.

          1. If the diameter is between 27.8770 and 27.9212 in. (708.075 and 709.200 mm)

          1. Accept

          2. Less than 27.8770 in. (708.075 mm)

          1. Repair, VRS1366 TASK 72-32-81-300-004 (REPAIR-004)

      3. Bent, nicked or dented.

        1. If the defects are to be removed by dressing, the damaged area must be less than 0.055 sqin (35.48 sqmm) per one fin.

        1. Repair, VRS1364 TASK 72-32-81-300-001 (REPAIR-001)

        2. More than Step

        1. Repair, VRS1366 TASK 72-32-81-300-004 (REPAIR-004)

    3. SUBTASK 72-32-81-220-054 Examine the Disk (01-200) Dovetail Slots

    1. Refer to Figure.

      2. Examine the dovetail slots at location 1.

        1. Galled.

          1. Bedding witness/marking of no apparent depth

          1. Accept

          2. More than in Step

          1. Reject

    4. SUBTASK 72-32-81-220-055 Examine the Disk (01-200) Bolt Holes

    1. Refer to Figure.

      2. Examine the bolt holes at location 3.

        1. Burred or scored

        1. Reject

    5. SUBTASK 72-32-81-220-056 Examine the Disk (01-200) Spigot Diameter

    1. Refer to Figure.

      2. Examine the spigot diameter at location 0108.

        1. Scored

        1. Repair, VRS1363 TASK 72-32-81-300-002 (REPAIR-002)

        2. Worn.

          1. If the diameter is between 11.8032 and 11.8051 in. (299.800 and 299.852 mm)

          1. Accept

        2. Write down the dimension of the diameter

          3. More than in Step

          1. Repair, VRS1365 TASK 72-32-81-300-003 (REPAIR-003)

    6. SUBTASK 72-32-81-220-057 Examine the Disk (01-200) 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 72-32-81-220-058 Examine the Disk (01-200) all other Outer Surfaces

    1. Refer to Figure.

      2. Examine all the other disk outer surfaces.

        1. Nicked

        1. Repair, VRS1363 TASK 72-32-81-300-002 (REPAIR-002)

    8. SUBTASK 72-32-81-220-070 Examine the Disk (01-200) 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-A00 (GROUP A PARTS LIVES, CONFIG-001).

      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 72-32-81-220-084 Examine the Disk (01-200) Jacking Pad Bush

    1. Refer to Figure.

      2. Examine the jacking pad bush at location 4.

        1. Damage of the threads

        1. Repair, VRS1367 TASK 72-32-81-300-009 (REPAIR-009)

        2. Loose or missing

        1. Repair, VRS1367 TASK 72-32-81-300-009 (REPAIR-009)

    10. Figure: Locations of the LP Compressor Disk

    Locations 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