TASK 72-50-52-200-001-B00 No. 5 Bearing Retaining Plate - Examine, Inspection-001

DMC:V2500-A0-72-50-5202-02A-300A-C|Issue No:002.00|Issue Date:2019-05-01

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 72-50-52-200-001-B00 No. 5 Bearing Retaining Plate - Examine, Inspection-001

Effectivity

FIG/ITEM PART NO.

20-040

2A1213

General

This TASK gives the procedure for the inspection of the No. 5 bearing retaining plate. For the other parts of the No. 5 bearing plate and oil deflector refer to TASK 72-50-52-200-000 (INSPECTION/CHECK-000).

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 SPM TASK 70-20-00-200-501.

All the parts must be cleaned before any part is examined. Refer to TASK 72-50-52-100-000 (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.

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 SPM.

References

Refer to SPM for data on these items.

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

Inspection 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 SPM.

Method of testing for crack indications,

Chemical Process,

Surface Protection.

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NONE

Consumables, Materials and Expendables

NONE

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-50-52-230-051-003 Examine the No. 5 Bearing Retaining Plate (20-040) for Cracks

    1. Clean the part. Refer to TASK 72-50-52-100-000 (CLEANING-000).

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

        PART IDENT TASK/SUBTASK

        No. 5 bearing retaining plate

        TASK 70-23-01-230-501 (Dip or spray)

        1. Cracked.

        1. Reject.

    2. SUBTASK 72-50-52-230-051-004 Examine the No. 5 Bearing Retaining Plate (20-040) for Cracks

    1. Clean the part. Refer to TASK 72-50-52-100-000 (CLEANING-000).

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

        PART IDENT TASK/SUBTASK

        No. 5 bearing retaining plate

        SPM TASK 70-23-01-230-501 (Dip or spray)

        1. Cracked.

        1. Reject.

    3. SUBTASK 72-50-52-220-071 Examine the No. 5 Bearing Retaining Plate (20-040) for Nicks and Scratches

    1. Refer to Figure.

      2. Examine the retaining plate for nicks and scratches.

        1. Nicks and scratches.

          1. No high metal allowed.

          1. Accept.

          2. Other than Step.

          1. Repair, VRS3088 TASK 72-50-52-300-006 (REPAIR-006).

    4. SUBTASK 72-50-52-220-072 Examine the No. 5 Bearing Retaining Plate (20-040) Anti-Rotation Slots for Wear and Damage

    1. Refer to Figure.

      2. Examine the retaining plate anti rotation slots for wear and damage.

        1. Wear.

          1. No high metal allowed. Wear must be smooth and flat and in the dimension limit permitted.

          1. Accept.

        2. Damage.

          1. No high metal allowed.

          1. Accept.

        3. Other than Step or Step.

        1. Repair, VRS3088 TASK 72-50-52-300-006 (REPAIR-006).

    5. SUBTASK 72-50-52-220-073 Examine the No. 5 Bearing Retaining Plate (20-040) for Width of the Anti Rotation Slots

    1. Refer to Figure.

      2. Examine the retaining plate slot width at location 2.

        1. If the width is between 0.496 in. and 0.500 in. (12.599 mm and 12.700 mm).

        1. Accept.

        2. Other than Step.

        1. Repair, VRS3128 TASK 72-50-52-300-007 (REPAIR-007).

    6. SUBTASK 72-50-52-220-074 Examine the No. 5 Bearing Retaining Plate (20-040) for Flatness

    1. Refer to Figure.

      2. Examine the retaining plate for flatness at location 1.

        1. Surface must be flat in 0.003 in. (0.076 mm) or less.

        1. Accept.

        2. Other than Step.

        1. Reject.

    7. Figure: No. 5 Bearing Retaining Plate Inspection Locations

    No. 5 Bearing Retaining Plate Inspection Locations

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Revised the procedure to correct figure item number. (18VC012)