TASK 79-11-41-200-404 Oil Tank - Related Parts - Examine The Oil Tank Assembly, Inspection-004

DMC:V2500-A0-79-11-4100-03A-300A-C|Issue No:002.00|Issue Date:2016-02-01

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 79-11-41-200-404 Oil Tank - Related Parts - Examine The Oil Tank Assembly, Inspection-004

Effectivity

FIG/ITEM

PART NO.

01-860

4B7030

01-860

4B7195

01-860

4B7244

General

This TASK gives the procedure for the inspection of the oil tank assembly. For the other parts of the oil tank assembly, refer to (Inspection-000) TASK 79-11-41-200-400.

The policy that is necessary for inspection is given in SPM TASK 70-20-01-200-501.

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 practice 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 70-20-01-200-501

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

NONE

Consumables, Materials and Expendables

NONE

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 79-11-41-230-054 Do a Crack Test on the Oil Tank Assembly (Fluorescent Penetrant)

    1. Clean the parts. Refer to Cleaning-000 TASK 79-11-41-100-400.

      2. Do the test for cracks on the parts that are given below.

        1. Oil tank Assembly.

          1. Refer to SPM TASK 70-23-01-230-501.

            1. Cracked

            1. Reject

            2. Trough porosity.

            1. Reject

    2. SUBTASK 79-11-41-220-077 Examine the Oil Tank Assembly, All Areas

      1. Evident cracks.

      1. Reject

    3. SUBTASK 79-11-41-220-078 Examine the Oil Tank Assembly Machined Surfaces at Location 1

    1. Refer to Figure or Figure.

      2. Nicked, scored, dented or scratched.

        1. Not more than 0.008 in. (0.2 mm) in depth.

        1. Accept

        2. More than Step.

        1. Repair, VRS5224 TASK 79-11-41-300-005 (Repair-005).

    4. SUBTASK 79-11-41-220-079 Examine the Oil Tank Assembly Machined Seal Surfaces at Location 2

    1. Refer to Figure or Figure.

      2. Nicked, scored, dented or scratched.

        1. Not more than 0.004 in. (0.1 mm) in depth, not extended across the seal surfaces.

        1. Accept

        2. More than Step.

        1. Repair, VRS5224 TASK 79-11-41-300-005 (Repair-005).

    5. SUBTASK 79-11-41-220-080 Examine the Oil Tank Assembly Rough Surfaces at Location 3

    1. Refer to Figure or Figure.

      2. Nicked, scored, dented or scratched.

        1. Not more than 0.0138 in. (0.35 mm) in depth.

        1. Accept

        2. More than Step.

        1. Repair, VRS5224 TASK 79-11-41-300-005 (Repair-005).

    6. SUBTASK 79-11-41-220-081 Examine the Oil Tank Assembly Protective Finish

      1. Light corrosion or pitting

      1. Repair, VRS5225 TASK 79-11-41-300-006 (Repair-006).

    7. SUBTASK 79-11-41-220-082 Examine the Oil Tank Assembly Wire Thread Inserts

      1. Loose, missing or internal thread damage.

      1. Repair, VRS5226 TASK 79-11-41-300-021 (Repair-021).

    8. SUBTASK 79-11-41-220-083 Examine the Oil Tank Assembly Piloting Diameter at Location 4

    1. Refer to Figure or Figure.

      2. Diameter.

        1. Between 7.0862 in. and 7.0823 in. (179.99 mm and 179.89 mm).

        1. Accept

        2. Less than 7.0823 in. (179.89 mm).

        1. Repair, VRS5235 TASK 79-11-41-300-030 (Repair-030).

      3. True position.

        1. Not more than 0.0295 in. (0.75 mm) in relation to planes A, B, C.

        1. Accept

    9. SUBTASK 79-11-41-220-084 Examine the Oil Tank Assembly Mounting Face at Location 5

    1. Refer to Figure or Figure.

      2. Perpendicularity.

        1. Not more than 0.002 in. (0.05 mm) FIR in relation to surface D.

        1. Accept

        2. More than Step.

        1. Repair, VRS5236 TASK 79-11-41-300-031 (Repair-031).

    10. SUBTASK 79-11-41-220-085 Examine the Oil Tank Assembly Oil Level Indicator Seat at Location 6

    1. Refer to Figure. or Figure.

      2. Diameter.

        1. Between 2.7756 in. and 2.7803 in. (70.50 mm and 70.62 mm).

        1. Accept

        2. More than 2.7803 in. (70.62 mm).

        1. Repair, VRS5229 TASK 79-11-41-300-024 (Repair-024).

      3. True position.

        1. Not more than 0.0295 in. (0.75 mm) in relation to planes A, B, C.

        1. Accept

        2. More than Step.

        1. Repair, VRS5229 TASK 79-11-41-300-024 (Repair-024).

    11. SUBTASK 79-11-41-220-087 Examine the Oil Tank Assembly Static Deaerator Seat at Location 7

    1. Refer to FigureFigure.

      2. Diameter.

        1. Between 6.50 in. and 6.502 in. (165.1 mm and 165.15 mm).

        1. Accept

        2. More than 6.502 in. (165.15 mm).

        1. Repair, VRS5227 TASK 79-11-41-300-022 (Repair-022).

      3. True position.

        1. Not more than 0.0295 in. (0.75 mm) in relation to planes A, B, C.

        1. Accept

        2. More than Step.

        1. Repair, VRS5227 TASK 79-11-41-300-022 (Repair-022).

    12. SUBTASK 79-11-41-220-089 Examine the Oil Tank Assembly Cover Seat at Location 8

    1. Refer to Figure or Figure.

      2. Diameter.

        1. Between 2.994 in. and 2.998 in. (76.048 mm and 76.149 mm).

        1. Accept

        2. More than 2.998 in. (76.149 mm).

        1. Repair, VRS5231 TASK 79-11-41-300-026 (Repair-026).

      3. True position.

        1. Not more than 0.0295 in. (0.75 mm) in relation to planes A, B, C.

        1. Accept

        2. More than Step.

        1. Repair, VRS5231 TASK 79-11-41-300-026 (Repair-026).

    13. SUBTASK 79-11-41-220-092 Examine the Oil Tank Assembly Filler Neck Seat at Location 9

    1. Refer to FigureFigure.

      2. Diameter.

        1. Between 2.994 in. and 2.998 in. (76.048 mm and 76.149 mm).

        1. Accept

        2. More than 2.998 in. (76.149 mm).

        1. Repair, VRS5233 TASK 79-11-41-300-028 (Repair-028).

      3. True position.

        1. Not more than 0.0295 in. (0.75 mm) in relation to planes A, B, C.

        1. Accept

        2. More than Step.

        1. Repair, VRS5233 TASK 79-11-41-300-028 (Repair-028).

    14. Figure: Locations On The Oil Tank Assembly (P/N 4B7030)

    Locations On The Oil Tank Assembly (P/N 4B7030)

    Locations On The Oil Tank Assembly (P/N 4B7030)

    Locations On The Oil Tank Assembly (P/N 4B7030)

    Figure: Locations On The Oil Tank Assembly (P/N 4B7195 and 4B7244)

    Locations On The Oil Tank Assembly (P/N 4B7195 and 4B7244)

    Locations On The Oil Tank Assembly (P/N 4B7195 and 4B7244)

    Locations On The Oil Tank Assembly (P/N 4B7195 and 4B7244)

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Revised the oil tank assembly piloting diameter dimension at Location 4. (15VA017)