TASK 79-22-41-200-413 Oil Scavenge Pump - Related Parts - Examine The Casing Assembly, Inspection-013

DMC:V2500-A0-79-22-4100-12A-300A-C|Issue No:002.00|Issue Date:2016-11-01

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 79-22-41-200-413 Oil Scavenge Pump - Related Parts - Examine The Casing Assembly, Inspection-013

Effectivity

FIG/ITEM

PART NO.

01-690

4B7107

01-690

4B7349

General

This TASK gives the procedure for the inspection of the casing assembly. For the other parts of the oil scavenge pump assembly, refer to Inspection-000 TASK 79-22-41-200-400.

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.

Do dimensional inspections only if the visual inspection or some other condition makes it necessary.

The practices and processes referred to in the procedure by the TASK numbers are in the SPM.

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.

References

Refer to the SPM for data on these items.

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

Record and Control of the Lives of Parts, SPM TASK 70-05-00-220-501.

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

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NameManufacturerPart Number / IdentificationQuantityRemark
Workshop inspection equipmentLOCALWorkshop inspection equipment

Consumables, Materials and Expendables

NONE

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 79-22-41-230-056 Do a Crack Test on the Casing Assembly (Fluorescent Penetrant)

    1. Clean the part. Refer to Cleaning-000 TASK 79-22-41-100-400.

      2. Do the test for cracks on the part that is given below.

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

          1. Cracked

          1. Reject

          2. Trough porosity

          1. Reject

    2. SUBTASK 79-22-41-220-125 Examine the Casing Assembly All Areas

      1. Evident cracks

      1. Reject

    3. SUBTASK 79-22-41-220-126 Examine the Casing Assembly Rough Surfaces at Location 1

    1. Refer to Figure.

      2. Nicked, scored, dented or scratched

        1. Any quantity, any length not more than 0.035 in. (0.90 mm) in depth.

        1. Accept

        2. More than Step.

        1. Repair, VRS5362 TASK 79-22-41-300-025 (REPAIR-025).

    4. SUBTASK 79-22-41-220-127 Examine the Casing Assembly Machined (non-seal) Surfaces at Location 2

    1. Refer to Figure.

      2. Nicked, scored, dented or scratched

        1. Any quantity, any length not more than 0.008 in. (0.2 mm) in depth.

        1. Accept

        2. More than Step.

        1. Repair, VRS5362 TASK 79-22-41-300-025 (REPAIR-025).

      3. Nicked, dented corners

        1. Any quantity, any length not more than 0.10 in. (2.5 mm) in depth after removal of high metal.

        1. Accept

        2. More than Step.

        1. Reject

    5. SUBTASK 79-22-41-220-128 Examine the Casing Assembly Machined Seal Surfaces at Location 3

    1. Refer to Figure.

      2. Nicked, scored, dented or scratched

        1. Any quantity, any length 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, VRS5362 TASK 79-22-41-300-025 (REPAIR-025).

    6. SUBTASK 79-22-41-220-129 Examine the Casing Assembly Protective Finish

      1. Light corrosion or pitting

      1. Repair, VRS5363 TASK 79-22-41-300-026 (REPAIR-026).

    7. SUBTASK 79-22-41-220-130 Examine the Casing Assembly Helicoil Inserts

      1. Loose, missing or internal thread damage

      1. Repair, VRS5364 TASK 79-22-41-300-027 (REPAIR-027).

    8. SUBTASK 79-22-41-220-132 Examine the Casing Assembly Piloting Diameter at Location 4

    1. Refer to Figure.

      2. Worn

        1. Between 5.0378 and 5.0362 in. (127.96 and 127.92 mm) diameter.

        1. Accept

        2. Less than 5.0362 in. (127.92 mm)

        1. Repair, VRS5366 TASK 79-22-41-300-029 (REPAIR-029).

      3. Nicked, dented corners

        1. Any quantity, any length not more than 0.10 in. (2.5 mm) in depth after removal of high metal.

        1. Accept

        2. More than Step

        1. Reject

    9. SUBTASK 79-22-41-220-133 Examine the Casing Assembly Cover Seat at Location 5

    1. Refer to Figure.

      2. Worn

        1. Between 3.5433 and 3.5453 in. (90.00 and 90.05 mm) diameter.

        1. Accept

        2. More than 3.5453 in. (90.05 mm).

        1. Repair, VRS5367 TASK 79-22-41-300-030 (REPAIR-030).

      3. True position

        1. In a diameter of 0.001 in. (0.025 mm) FIR in relation to planes X and X1.

        1. Accept

        2. More than Step.

        1. Repair, VRS5367 TASK 79-22-41-300-030 (REPAIR-030).

    10. SUBTASK 79-22-41-220-134 Examine the Casing Assembly Cover Seat at Location 6

    1. Refer to Figure.

      2. Worn

        1. Between 3.5433 and 3.5453 in. (90.00 and 90.05 mm) diameter.

        1. Accept

        2. More than 3.5453 in. (90.05 mm).

        1. Repair, VRS5368 TASK 79-22-41-300-031 (REPAIR-031).

      3. True position

        1. In a diameter of 0.001 in. (0,025 mm) FIR in relation to planes Y and Y1.

        1. Accept

        2. More than Step.

        1. Repair, VRS5368 TASK 79-22-41-300-031 (REPAIR-031).

    11. SUBTASK 79-22-41-220-135 Examine the Casing Assembly Mounting Face at Location 7

    1. Refer to Figure.

      2. Perpendicularity

        1. In 0.002 in. (0.05 mm) FIR in relation to surface G.

        1. Accept

        2. More than Step.

        1. Repair, VRS5369 TASK 79-22-41-300-032 (REPAIR-032).

    12. SUBTASK 79-22-41-220-136 Examine the Casing Assembly Sump No.5 Scavenge Tube Mating Surface at Location 8

    1. Refer to Figure.

      2. Perpendicularity

        1. In 0.002 in. (0.05 mm) FIR in relation to surface H.

        1. Accept

        2. More than Step.

        1. Repair, VRS5370 TASK 79-22-41-300-033 (REPAIR-033).

      3. Nicked, dented corners

        1. Any quantity, any length not more than 0.10 in. (2.5 mm) in depth after removal of high metal.

        1. Accept

        2. More than Step.

        1. Reject

    13. SUBTASK 79-22-41-220-137 Examine the Casing Assembly Sump No. 5 Scavenge Tube Mating Surface at Location 9

    1. Refer to Figure.

      2. Worn

        1. Between 0.9120 and 0.9140 in. (23.165 and 23.215 mm) diameter.

        1. Accept

        2. More than 0.9140 in. (23.215 mm).

        1. Repair, VRS5371 TASK 79-22-41-300-034 (REPAIR-034).

      3. True position

        1. In a diameter of 0.0138 in. (0.35 mm) FIR in relation to its axis.

        1. Accept

        2. More than Step.

        1. Repair, VRS5371 TASK 79-22-41-300-034 (REPAIR-034).

    14. SUBTASK 79-22-41-220-138 Examine the Casing Assembly Angle Gearbox Scavenge Tube Seat at Location 10

    1. Refer to Figure.

      2. Worn

        1. Between 0.9120 and 0.9140 in. (23.165 and 23.215 mm) diameter.

        1. Accept

        2. More than 0.9140 in. (23.215 mm)

        1. Repair, VRS5372 TASK 79-22-41-300-035 (REPAIR-035).

      3. True position

        1. In a diameter of 0.0138 in. (0.35 mm) FIR in relation to its axis.

        1. Accept

        2. More than Step.

        1. Repair, VRS5372 TASK 79-22-41-300-035 (REPAIR-035).

    15. SUBTASK 79-22-41-220-139 Examine the Casing Assembly Angle Gearbox Scavenge Tube Mating Surface at Location 11

    1. Refer to Figure.

      2. Perpendicularity

        1. In 0.002 in. (0.05 mm) FIR in relation to surface I.

        1. Accept

        2. More than Step.

        1. Repair, VRS5373 TASK 79-22-41-300-036 (REPAIR-036).

      3. Nicked, dented corners

        1. Any quantity, any length not more than 0.10 in. (2.5 mm) in depth after removal of high metal.

        1. Accept

        2. More than Step.

        1. Reject

    16. SUBTASK 79-22-41-220-140 Examine the Casing Assembly Outlet Oil Tube Mating Surface at Location 12

    1. Refer to Figure.

      2. Perpendicularity

        1. In 0.002 in. (0.05 mm) FIR in relation to surface J.

        1. Accept

        2. More than Step.

        1. Repair, VRS5374 TASK 79-22-41-300-037 (REPAIR-037).

      3. Nicked, dented corners

        1. Any quantity, any length not more than 0.10 in. (2.5 mm) in depth after removal of high metal.

        1. Accept

        2. More than Step.

        1. Reject

    17. SUBTASK 79-22-41-220-141 Examine the Casing Assembly Outlet Oil Tube Seat at Location 13

    1. Refer to Figure.

      2. Worn

        1. Between 1.4580 and 1.4600 in. (37.033 and 37.083 mm) diameter.

        1. Accept

        2. More than 1.4600 in. (37.083 mm)

        1. Repair, VRS5375 TASK 79-22-41-300-038 (REPAIR-038).

      3. True position

        1. In a diameter of 0.0138 in. (0.35 mm) FIR in relation to its axis.

        1. Accept

        2. More than Step.

        1. Repair, VRS5375 TASK 79-22-41-300-038 (REPAIR-038).

    18. SUBTASK 79-22-41-220-142 Examine the Casing Assembly Sump Nos. 1, 2 and 3 Scavenge Tube Seat at Location 14

    1. Refer to Figure.

      2. Worn

        1. Between 1.4580 and 1.4600 in. (37.033 and 37.083 mm) diameter.

        1. Accept

        2. More than 1.4600 in. (37.083 mm)

        1. Repair, VRS5376 TASK 79-22-41-300-039 (REPAIR-039).

      3. True position

        1. In a diameter of 0.0138 in. (0.35 mm) FIR in relation to its axis.

        1. Accept

        2. More than Step.

        1. Repair, VRS5376 TASK 79-22-41-300-039 (REPAIR-039).

    19. SUBTASK 79-22-41-220-143 Examine the Casing Assembly Sump Nos. 1, 2 and 3 Scavenge Tube Mating Surface at Location 15

    1. Refer to Figure.

      2. Perpendicularity

        1. In 0.002 in. (0.05 mm) FIR in relation to surface K.

        1. Accept

        2. More than Step.

        1. Repair, VRS5377 TASK 79-22-41-300-040 (REPAIR-040).

      3. Nicked, dented corners

        1. Any quantity, any length not more than 0.10 in. (2.5 mm) in depth after removal of high metal.

        1. Accept

        2. More than Step.

        1. Reject

    20. SUBTASK 79-22-41-220-144 Examine the Casing Assembly Gearbox Scavenge Tube Mating Surface at Location 16

    1. Refer to Figure.

      2. Perpendicularity

        1. In 0.002 in. (0.05 mm) FIR in relation to surface L.

        1. Accept

        2. More than Step.

        1. Repair, VRS5378 TASK 79-22-41-300-041 (REPAIR-041).

      3. Nicked, dented corners

        1. Any quantity, any length not more than 0.10 in. (2.5 mm) in depth after removal of high metal.

        1. Accept

        2. More than Step.

        1. Reject

    21. SUBTASK 79-22-41-220-145 Examine the Casing Assembly Gearbox Scavenge Tube Seat at Location 17

    1. Refer to Figure.

      2. Worn

        1. Between 1.4580 and 1.4600 in. (37.033 and 37.083 mm) diameter.

        1. Accept

        2. More than 1.4600 in. (37.083 mm)

        1. Repair, VRS5379 TASK 79-22-41-300-042 (REPAIR-042).

      3. True position

        1. In a diameter of 0.0138 in. (0.35 mm) FIR in relation to its axis.

        1. Accept

        2. More than Step.

        1. Repair, VRS5379 TASK 79-22-41-300-042 (REPAIR-042).

    22. SUBTASK 79-22-41-220-146 Examine the Casing Assembly Gearbox Scavenge Strainer Seat at Location 18

    1. Refer to Figure.

      2. Worn

        1. Between 1.2618 and 1.2638 in. (32.05 and 32.10 mm) diameter.

        1. Accept

        2. More than 1.2638 in. (32.1 mm).

        1. Repair, VRS5380 TASK 79-22-41-300-043 (REPAIR-043).

      3. True position

        1. In a diameter of 0.002 in. (0.05 mm) FIR in relation to its axis.

        1. Accept

        2. More than Step.

        1. Repair, VRS5380 TASK 79-22-41-300-043 (REPAIR-043).

    23. SUBTASK 79-22-41-220-147 Examine the Casing Assembly Chip Detector Housing of Location 19

    1. Refer to Figure.

      2. Threads

        1. Damaged/stripped

        1. Repair, VRS5426 TASK 79-22-41-300-044 (REPAIR-044).

    24. SUBTASK 79-22-41-220-148 Examine the Casing Assembly Spring Seats Surfaces at Location 20

    1. Refer to Figure and Figure.

      2. Frettage localized in areas of contact with spring

        1. Not more than 0.059 in. (1.5 mm) in depth and the spring can be positioned on not damaged land of the seat.

        1. Accept

        2. Not more than 0.059 in. (1.5 mm) in depth and positioning as (1) is not possible.

        1. Repair, VRS5683 TASK 79-22-41-300-045 (REPAIR-045).

        3. More than Step.

        1. Reject

    25. SUBTASK 79-22-41-220-149 Examine the Casing Assembly Gear Bores Lateral Machined Surfaces at Location 21

    1. Refer to Figure and Figure.

      2. Scratches, scores, gouges

        1. Any quantity, any length not more than 0.004 in. (0.1 mm) in depth after removal of high metal.

        1. Accept

        2. Between 0.004 in. (0.1 mm) and 0.059 in. (1.5 mm).

        1. Repair, VRS5683 TASK 79-22-41-300-045 (REPAIR-045).

        3. More than Step.

        1. Reject

    26. Figure: Locations on the Oil Pump Casing Assembly

    Locations on the Oil Pump Casing Assembly

    Locations on the Oil Pump Casing Assembly

    Locations on the Oil Pump Casing Assembly

    Locations on the Oil Pump Casing Assembly

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Added repair reference to VRS5426. (91VF809A)

Manufacturer Code:LOCAL
Enterprise Name:LOCALLY SUPPLIED
Manufacturer Code:LOCAL
Tool Number:Workshop inspection equipment
Tool Name:Workshop inspection equipment