TASK 72-32-21-200-001-A00 No. 3 Bearing Housing Shoulder Stud - Examine, Inspection-001

DMC:V2500-A0-72-32-2102-00A-300A-C|Issue No:002.00|Issue Date:2020-05-01

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 72-32-21-200-001-A00 No. 3 Bearing Housing Shoulder Stud - Examine, Inspection-001

Effectivity

FIG/ITEM

PART NO.

01-080

2A0422

01-080

2A1667

General

This TASK gives the procedure for the inspection of the shoulder stud.

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. For the other parts of the No. 3 bearing housing, refer to TASK 72-32-21-200-000 (INSPECTION-000).

All the parts must be cleaned before any part is examined. Refer to TASK 72-32-21-100-000 (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.

See the procedure section for instructions on performing crack test. Do the test before the part is visually examined. If one stud in a set has cracks, you must reject the entire set of studs.

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 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.

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

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

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NONE

Consumables, Materials and Expendables

NONE

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-32-21-230-051-001 Examine the Shoulder Stud (01-080) for Cracks

    1. Clean the part. Refer to TASK 72-32-21-100-000 (CLEANING-000).

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

        PART IDENT

        TASK/SUBTASK

        Shoulder stud

        (Dip or Spray)

        1. Cracked

        1. Reject the entire set of studs

    2. SUBTASK 72-32-21-230-051-002 Examine the Shoulder Stud (01-080) for Cracks

    1. Clean the part. Refer to TASK 72-32-21-100-000 (CLEANING-000).

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

        PART IDENT

        TASK/SUBTASK

        Shoulder stud

        (Dip or Spray)

        1. Cracked

        1. Reject the entire set of studs

    3. SUBTASK 72-32-21-220-051 Examine the Shoulder Stud (01-080) Threads for High Metal

    1. Refer to Figure.

      2. Examine the stud for high metal on all the threads at locations 1, 2, and 5.

        1. High metal

        1. Reject

    4. SUBTASK 72-32-21-220-052 Examine the Shoulder Stud (01-080) Rear Face for High Metal

    1. Refer to Figure.

      2. Examine the stud rear face for high metal at location 4.

        1. High metal

        1. Reject

    5. SUBTASK 72-32-21-220-053 Examine the Shoulder Stud (01-080) Diameter

    1. Refer to Figure.

      2. Examine the stud diameter at location 6 (Reference No. 2400).

        1. If the dimension is between 0.3236 and 0.3244 in. (8.2195 and 8.2397 mm)

        1. Accept

        2. Other than Step

        1. Reject

    6. SUBTASK 72-32-21-220-054 Examine the Shoulder Stud (01-080) for Distortion

    1. Refer to Figure.

      NOTE

      The anti-galling compound must be removed from the surface at location 3 before any measurement is taken. Refer to the Cleaning TASK 72-32-21-100-000 (CLEANING-000).

      2. Examine the stud for distortion between locations 3 and 4.

        1. Measure the surfaces to be parallel between locations 3 and 4.

          1. Up to 0.0005 in. (0.013 mm)

          1. Accept

          2. Other than Step

          1. Reject

      3. Examine the stud at location 7 for distortion.

        1. Distortion (bent or twisted)

        1. Reject

    7. SUBTASK 72-32-21-220-055 Examine the Shoulder Stud (01-080) for Anti-Galling Compound

    1. Refer to Figure.

      2. Examine the stud for anti-galling compound. The stud must have new anti-galling compound applied after the inspection and repairs are done.

        1. Apply anti-galling compound

        1. Repair, VRS3418 TASK 72-32-21-300-002 (REPAIR-002)

    8. Figure: Shoulder stud inspection locations

    Shoulder stud inspection locations

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Revised step. (19VC461)