TASK 72-32-51-200-004 LP Stub Shaft - Examine, Inspection-004

DMC:V2500-A0-72-32-5104-00A-300A-C|Issue No:001.00|Issue Date:2014-05-01

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 72-32-51-200-004 LP Stub Shaft - Examine, Inspection-004

Effectivity

FIG/ITEM

PART NO.

01-350

5A0895

01-350

5A6068

General

This TASK gives the procedure for the inspection of the stub shaft assembly. For the other LP stub shaft and rotor center parts, refer to TASK 72-32-51-200-000 (INSPECTION-000).

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 TASK 72-32-51-100-000 (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 the 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/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

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

NOTE

To identify the consumable materials, refer to the PCI.

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NameManufacturerPart Number / IdentificationQuantityRemark
Magnetic particle inspection equipmentLOCALMagnetic particle inspection equipment

Consumables, Materials and Expendables

NameManufacturerPart Number / IdentificationQuantityRemark
CoMat 06-011 MAGNETIC PARTICLES, FLUORESCENT, DRY POWDERLOCALCoMat 06-011

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-32-51-240-053 Examine the Stub Shaft Assembly (01-350) for Cracks

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

      2. Do the test for cracks on the part that follows. Use the applicable magnetic inspection procedure.

        PART IDENT

        TASK/SUBTASK

        Stub Shaft

        1. Cracked

        1. Reject

    2. PART IDENT

    PROCEDURE

    CURRENT/INSPECT

    TASK/SUBTASK

    Stub shaft assembly

    TB using continuous wet simultaneous inking with CoMat 06-011 MAGNETIC PARTICLES, FLUORESCENT, DRY POWDER

    1500 amp.

    Stub shaft diameter. Visually inspect for longitudinal and radial defects. Check doubtful indications using low power magnification. If necessary, inspect under white light at X15 binocular

    Solenoid coil continuous wet or simultaneous inking

    15000 A/T.

    Do again the magnetisation and inspection along the stub shaft length. Visually inspect for circumferential defects. Check doubtful indications using low power magnification. If necessary, inspect under white light at X15 binocular

    2. SUBTASK 72-32-51-220-068 Examine the Stub Shaft Assembly (01-350) Surfaces at Zone A, B, C and D

    1. Refer to Figure.

      2. Examine the surface at zone A.

        1. Pitted

        1. Repair, VRS1292 TASK 72-32-51-300-008 (REPAIR-008)

      3. Examine the surface at zone B.

        1. Pitted

        1. Repair, VRS1919 TASK 72-32-51-300-027 (REPAIR-027)

      4. Examine the surface at zone C.

        1. Pitted or dented

        1. Repair, VRS1292 TASK 72-32-51-300-008 (REPAIR-008)

      5. Examine the surface at zone D.

        1. Pitted.

          1. Not more than 0.010 in. (0.25 mm) in depth

          1. Accept

          2. More than in Step

          1. Reject

        2. Nicked or dented

        1. Repair, VRS1292 TASK 72-32-51-300-008 (REPAIR-008)

    3. SUBTASK 72-32-51-220-069 Examine the Stub Shaft Assembly (01-350) Bolt Holes at Location 1

    1. Refer to Figure.

      2. Burred or scored

      1. Repair, VRS1292 TASK 72-32-51-300-008 (REPAIR-008)

      3. Corroded

      1. Repair, VRS1292 TASK 72-32-51-300-008 (REPAIR-008)

    4. SUBTASK 72-32-51-220-070 Examine the Stub Shaft Assembly (01-350) Curvic Teeth at Location 2

    1. Refer to Figure and Figure.

      2. Galled

      1. Repair, VRS1287 TASK 72-32-51-300-009 (REPAIR-009)

      3. Corroded or pitted

        1. General corrosion or pitting of the tooth crest flats, root flats, root fillet and curvic side faces (but does not include the working flanks) not more than 0.005 in. (0.13 mm) in depth

        1. Accept

        2. Isolated pits up to 0.008 in. (0.20 mm) in depth, on the tooth crest flats only

        1. Accept

        3. Light staining only, on the tooth working flanks

        1. Accept

        4. More than in Step, Step and Step

        1. Repair, VRS1287 TASK 72-32-51-300-009 (REPAIR-009)

    5. SUBTASK 72-32-51-220-071 Examine the Stub Shaft Assembly (01-350) Pins at Locations 3 and 4

    1. Refer to Figure.

      2. Worn

      1. Repair, VRS1294 TASK 72-32-51-300-010 (REPAIR-010)

    6. SUBTASK 72-32-51-220-169 Examine the Stub Shaft Assembly (01-350) Inner Annular Groove at Location 14

    1. Refer to Figure.

      2. Nicked, dented or scratched

      1. Repair, VRS1292 TASK 72-32-51-300-008 (REPAIR-008)

    7. SUBTASK 72-32-51-220-170 Examine the Stub Shaft Assembly (01-350) Fillet R at Location 15

    1. Refer to Figure.

      2. Nicked, dented or scratched

      1. Reject

      3. Corroded or pitted

      1. Repair, VRS1292 TASK 72-32-51-300-008 (REPAIR-008)

    8. SUBTASK 72-32-51-220-072 Examine the Stub Shaft Assembly (01-350) Bearing Journals at Location 0113

    1. Refer to Figure.

      2. Worn.

        1. Between 4.4491 and 4.4494 in. (113.005 and 113.015 mm) in diameter

        1. Accept

      2. Write down the dimension of the diameter

        3. Less than 4.4491 in. (113.005 mm)

        1. Repair, VRS1291 TASK 72-32-51-300-011 (REPAIR-011)

      3. Galled or scored

      1. Repair, VRS1291 TASK 72-32-51-300-011 (REPAIR-011)

    9. SUBTASK 72-32-51-220-073 Examine the Stub Shaft Assembly (01-350) Splines at Location 6

    1. Refer to Figure.

      2. Galled, scored or burred

      1. Repair, VRS1293 TASK 72-32-51-300-012 (REPAIR-012)

    10. SUBTASK 72-32-51-220-074 Examine the Stub Shaft Assembly (01-350) Bore at Location 7

    1. Refer to Figure.

      2. Tool marks

      1. Repair, VRS1292 TASK 72-32-51-300-008 (REPAIR-008)

    11. SUBTASK 72-32-51-220-075 Examine the Stub Shaft Assembly (01-350) Outside Diameter at Location 0107

    1. Refer to Figure.

      2. Worn.

        1. Between 9.8065 and 9.8075 in. (249.084 and 249.113 mm) in diameter

        1. Accept

      2. Write down the dimension of the diameter

        3. Less than 9.8065 in. (249.084 mm)

        1. Repair, VRS1911 TASK 72-32-51-300-024 (REPAIR-024)

      3. Galled or scored

      1. Repair, VRS1292 TASK 72-32-51-300-008 (REPAIR-008)

    12. SUBTASK 72-32-51-220-076 Examine the Stub Shaft Assembly (01-350) Inside Diameters at Locations 9 and 10

    1. Refer to Figure.

      2. Examine the inside diameter at location 9.

        1. Worn.

          1. Between 3.9371 and 3.9378 in. (100.000 and 100.022 mm) in diameter

          1. Accept

          2. More than 3.9378 in. (100.022 mm)

          1. Repair, VRS1910 TASK 72-32-51-300-013 (REPAIR-013)

        2. Galled or scored.

          1. Not more than 0.0039 in. (0.10 mm) in depth

          1. Repair, VRS1292 TASK 72-32-51-300-008 (REPAIR-008)

          2. Between 0.0039 and 0.017 in. (0.10 and 0.45 mm) in depth.

            1. If the damage is in 10 or less than 10 places

            1. Repair, VRS1292 TASK 72-32-51-300-008 (REPAIR-008)

            2. If the damage is in more than 10 places

            1. Repair, VRS1910 TASK 72-32-51-300-013 (REPAIR-013)

          3. More than 0.017 in. (0.45 mm) in depth

          1. Reject

      3. Examine the inside diameter at location 10.

        1. Worn.

          1. Between 3.5434 and 3.5446 in. (90.000 and 90.035 mm) in diameter

          1. Accept

          2. More than 3.5446 in. (90.035 mm)

          1. Repair, VRS1910 TASK 72-32-51-300-013 (REPAIR-013)

        2. Galled or scored.

          1. Not more than 0.0039 in. (0.10 mm) in depth

          1. Repair, VRS1292 TASK 72-32-51-300-008 (REPAIR-008)

          2. Between 0.0039 and 0.017 in. (0.10 and 0.45 mm) in depth.

            1. If the damage is in 10 or less than 10 places

            1. Repair, VRS1292 TASK 72-32-51-300-008 (REPAIR-008)

            2. If the damage is in more than 10 places

            1. Repair, VRS1910 TASK 72-32-51-300-013 (REPAIR-013)

          3. More than 0.017 in. (0.45 mm) in depth

          1. Reject

    13. SUBTASK 72-32-51-220-162 Examine the Stub Shaft Assembly (01-350) Outside Diameter at Location 0114

    1. Refer to Figure.

      2. Worn.

        1. Between 4.4110 and 4.4117 in. (112.037 and 112.059 mm) in diameter

        1. Accept

      2. Write down the dimension of the diameter

        3. Less than 4.4110 in. (112.037 mm)

        1. Repair, VRS1291 TASK 72-32-51-300-011 (REPAIR-011)

        4. Galled or scored

        1. Repair, VRS1291 TASK 72-32-51-300-011 (REPAIR-011)

    14. SUBTASK 72-32-51-220-160 Examine the Stub Shaft (01-350) at Location 11 for the Engine Cycles of the Part

    1. Refer to Figure.

    2. Examine the stub shaft at Location 11, for the total engine cycles marked before (at each disassembly).

      NOTE

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

      3. Calculate the new total number of engine cycles for the stub shaft.

      1. Add the new engine cycles, since the last inspection, to the engine cycles marked on the stub shaft.

    4. Do not install the stub shaft if the total number of engine cycles is more than the maximum cycles given in TASK 05-10-01-200-001 (TIME LIMITS MANUAL, PUB REF T-V2500-1IA, 05-10-01, GROUP A PARTS LIVES, CONFIG-1, CONFIG-2, CONFIG-3, PAGE 1).

      5. Mark the new total number of engine cycles on the stub shaft.

      1. Vibro-engrave the new total number at Location 11, refer to the SPM TASK 70-09-00-400-501.

    15. SUBTASK 72-32-51-220-163 Examine the Stub Shaft Assembly (01-350) Paint

    1. Refer to Figure.

      2. Examine the paint at location 12.

      1. Missing paint.

        2. Not more than 4 sqin (25.8 sqcm) in total

        1. Repair, VRS1295 TASK 72-32-51-300-023 (REPAIR-023) or Repair, VRS1289 TASK 72-32-51-300-014 (REPAIR-014)

        3. More than in Step

        1. Repair, VRS1295 TASK 72-32-51-300-023 (REPAIR-023)

    16. SUBTASK 72-32-51-220-165 Examine the Stub Shaft Assembly (01-350) Groove for Phonic Wheel Pin at Location 13

    1. Refer to Figure.

      2. Examine surface on groove at location 13.

        1. Nicked, dented or scratched.

          1. Not more than 0.0050 in. (0.13 mm) in depth

          1. Repair, VRS1292 TASK 72-32-51-300-027 (REPAIR-027)

          2. More than in Step

          1. Reject

    17. SUBTASK 72-32-51-220-171 Examine the Stub Shaft Assembly (01-350) Phonic Wheel Contact Face at Location 16

    1. Refer to Figure.

      2. Galled or gouged

      1. Repair, VRS1292 TASK 72-32-51-300-008 (REPAIR-008)

    18. Figure: Location on the Stub Shaft Assembly

    Location on the Stub Shaft Assembly

    Figure: Locations on the Stub Shaft Assembly - Curvic Teeth

    Locations on the Stub Shaft Assembly - Curvic Teeth

    Figure: Locations on the Stub Shaft Assembly - Paint Area

    Locations on the Stub Shaft Assembly - Paint Area

Requirements After Job Completion

Follow-On Conditions

NONE
Manufacturer Code:LOCAL
Enterprise Name:LOCALLY SUPPLIED
Manufacturer Code:X222X
Supply Number:CoMat 06-011
Type:sp01
Supply Short Name:CoMat 06-011 MAGNETIC PARTICLES, FLUORESCENT, DRY POWDER
Supply Name:CoMat 06-011 MAGNETIC PARTICLES, FLUORESCENT, DRY POWDER
Specification Groups:
Doc NumberType
Where CoMat 06-011 is specified with no suffix, use one of the CoMat 06-011 letter suffix alternative materials.
Suppliers:
ManufacturerRemarks
X222X
Manufacturer Code:LOCAL
Tool Number:Magnetic particle inspection equipment
Tool Name:Magnetic particle inspection equipment