TASK 72-32-51-200-001 LP Rotor Center Shaft - Examine, Inspection-001

DMC:V2500-A0-72-32-5101-00A-300A-C|Issue No:003.00|Issue Date:2018-02-01

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 72-32-51-200-001 LP Rotor Center Shaft - Examine, Inspection-001

Effectivity

FIG/ITEM

PART NO.

01-100

5R7016

General

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

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 72-32-51-100-000 (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 parts is visually examined. Limits for cracks are given in the SUBTASK for each part.

A ** following repair referenced in this inspection indicates that the repair is not yet published in the current revision of the manual and the part must be rejected. Contact IAE for additional information concerning FAA approved repair date.

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 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 numbers are in the SPM.

References

Refer to the SPM for the data on these items.

Definitions of Damages, TASK 70-02-02-350-501

Inspection of Parts, TASK 70-20-01-200-501

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 72-32-51-230-052 Examine the Shaft (01-100) for Cracks

    1. Clean the part. Refer to TASK 72-32-51-100-000 (CLEANING-000).

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

        PART IDENT

        TASK/SUBTASK

        Shaft

        1. Cracked

        1. Reject

    2. SUBTASK 72-32-51-220-078 Examine the Shaft (01-100) Bolt Hole

    1. Refer to Figure.

      2. Examine the bolt hole at Location 3.

        1. Any burrs or scores.

          1. Burred

          1. Repair, VRS1276 TASK 72-32-51-300-015 (REPAIR-015)

          2. Scored

            1. Not more than 0.005 in. (0.12 mm) in depth

            1. Repair, VRS1276 TASK 72-32-51-300-015 (REPAIR-015)

            2. More than Step

            1. Reject

    3. SUBTASK 72-32-51-220-079 Examine the Shaft (01-100) Captive nut

    1. Refer to Figure

      2. Examine the captive nuts at Location 9.

        1. Cracks, loose or nut(s) that are not there

        1. Repair, VRS1277 TASK 72-32-51-300-003 (REPAIR-003)

          2. Torque check for reuse of the nuts, refer to the SPM TASK 70-42-01-400-501.

            1. If the torque value is between 18.0 lbfin and 150 lbfin (2.034 Nm and 16.95 Nm)

            1. Accept

            2. More than and/or less than in Step

            1. Repair, VRS1277 TASK 72-32-51-300-003 (REPAIR-003)

    4. SUBTASK 72-32-51-220-080 Examine the Shaft (01-100) Jacking Pads

    1. Refer to Figure.

      2. Examine the jacking pads at Location 2.

        1. Loose or jacking pad(s) that are not there

        1. Repair, VRS1278 TASK 72-32-51-300-007 (REPAIR-007)

    5. SUBTASK 72-32-51-220-081 Examine the Shaft (01-100) Shims

    1. Refer to Figure.

      2. Examine the shims at Location 10.

        1. Cracks or splits

        1. Repair, VRS1279 TASK 72-32-51-300-004 (REPAIR-004)

    6. SUBTASK 72-32-51-220-082 Examine the Shaft (01-100) Bearing Journals

    1. Refer to Figure.

      2. Examine the coated bearing journal diameter (2 places) at Location 0110.

        1. Dimensionally inspect outside diameter of the coated bearing journal diameter.

          1. If the diameter is between 8.6664 in. and 8.6675 in. (220.126 mm and 220.156 mm)

          1. Accept

        2. Write down the dimension of the diameter

          3. Less than in Step

          1. Repair, VRS1280 TASK 72-32-51-300-016 (REPAIR-016)

      3. Examine the bearing journal at Location 5.

        1. Chipped

        1. Repair, VRS1280 TASK 72-32-51-300-016 (REPAIR-016)

        2. Pitted

          1. Not larger than 0.020 in. (0.5 mm) in diameter or equivalent area up to 10 pits, if they are apart by at least 2 times the diameter of the larger pit.

          1. Accept

          2. More than in Step

          1. Repair, VRS1280 TASK 72-32-51-300-016 (REPAIR-016).

        3. Galled or scored

        1. Repair, VRS1280 TASK 72-32-51-300-016 (REPAIR-016).

    7. SUBTASK 72-32-51-220-083 Examine the Shaft (01-100) Snap Diameter

    1. Refer to Figure.

      2. Examine the snap diameter at Location 0108.

        1. Dimensionally inspect outside diameter of the spigot diameter.

          1. If the diameter is between 11.8063 in. and 11.8074 in. (299.878 mm and 299.910 mm)

          1. Accept

          2. Write down the dimension of the diameter.

          2. Less than Step

          1. Repair, VRS1283 TASK 72-32-51-300-017 (REPAIR-017)

    8. SUBTASK 72-32-51-220-084 Examine the Shaft (01-100) Threads

    1. Refer to Figure.

      2. Examine the Threads at Location 6.

        1. Nicked, dented or scored

        1. Repair, VRS1369 TASK 72-32-51-300-029 (REPAIR-029).

        2. Reject

    9. SUBTASK 72-32-51-220-085 Examine the Shaft (01-100) Seal Surface

    1. Refer to Figure.

      2. Examine the seal surface at Location 8.

        1. Dimensionally inspect inside diameter of the seal surface.

          1. Diameter less than 7.4040 in. (188.063 mm)

          1. Accept

          2. More than in Step

          1. Repair, VRS1941 TASK 72-32-51-300-019 (REPAIR-019)

    10. SUBTASK 72-32-51-220-086 Examine the Shaft (01-100) Snap Diameter

    1. Refer to Figure.

      2. Examine the snap diameter at Location 0107.

        1. Dimensionally inspect inside snap diameter.

          1. If the diameter is between 9.8032 in. and 9.8049 in. (249.000 mm and 249.046 mm)

          1. Accept

        2. Write down the dimension of the diameter

          3. More than in Step

          1. Repair, VRS1942 TASK 72-32-51-300-018 (REPAIR-018)

    11. SUBTASK 72-32-51-220-087 Examine the Shaft (01-100) Snap Diameter

    1. Refer to Figure.

      2. Examine the snap diameter at Location 4.

        1. Dimensionally inspect the outside snap diameter.

          1. Diameter more than 10.3881 in. (263.856 mm)

          1. Accept

          2. Less than in Step

          1. Repair, VRS1943 TASK 72-32-51-300-020 (REPAIR-020)

    12. SUBTASK 72-32-51-220-105 Examine the Shaft (01-100) Oil Hole

    1. Refer to Figure.

      2. Examine the oil hole at Location 7.

        1. Burred

        1. Repair, VRS1276 TASK 72-32-51-300-015 (REPAIR-015)

        2. Plugged

        1. Clean with dry air blast

    13. SUBTASK 72-32-51-220-088 Examine the Shaft (01-100) Other Surfaces

      1. Examine the other surfaces.

        1. Nicked.

          1. Not more than 0.005 in. (0.12 mm) in depth

          1. Repair, VRS1276 TASK 72-32-51-300-015 (REPAIR-015)

          2. More than Step

          1. Reject

    14. Figure: Shaft, A/O rotor centre

    Shaft, A/O rotor centre

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Added/revised the repair references. (Editorial)

Manufacturer Code:LOCAL
Enterprise Name:LOCALLY SUPPLIED
Manufacturer Code:LOCAL
Tool Number:Fluorescent penetrant inspection equipment
Tool Name:Fluorescent Penetrant Inspection Equipment