TASK 79-22-41-200-401-A00 Oil Scavenge Pump - Related Parts - Examine The Cover Assembly, Inspection-001

DMC:V2500-A0-79-22-4100-00A-300A-C|Issue No:001.00|Issue Date:2013-11-01

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 79-22-41-200-401-A00 Oil Scavenge Pump - Related Parts - Examine The Cover Assembly, Inspection-001

Effectivity

FIG/ITEM

PART NO.

01-050

4B7003

General

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

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 70-20-01-200-501.

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.

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 79-22-41-230-165 Do a Crack Test on the Cover 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. Cover Assembly. Refer to SPM TASK 70-23-01-230-501.

          1. Cracked

          1. Reject

          2. Trough porosity

          1. Reject

    2. SUBTASK 79-22-41-220-184 Examine the Cover Assembly All Areas

      1. Evident cracks

      1. Reject

    3. SUBTASK 79-22-41-220-185 Examine the Cover Assembly Rough Surfaces at Location 1

    1. Refer to Figure and Figure.

      2. Nicked, scored, dented or scratched.

        1. Any quantity, any length not more than 0.0138 in. (0.35 mm).

        1. Accept

        2. More than Step.

        1. Repair, VRS5332 (Repair-001) TASK 79-22-41-300-001.

    4. SUBTASK 79-22-41-220-186 Examine the Cover Assembly Machined (non-seal) Surfaces at Location 2

    1. Refer to Figure and Figure.

      2. Nicked, scored, dented or scratched.

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

        1. Accept

        2. More than Step.

        1. Repair, VRS5332 (Repair-001) TASK 79-22-41-300-001.

    5. SUBTASK 79-22-41-220-187 Examine the Cover Assembly Machined Seal Surfaces at Location 3

    1. Refer to Figure and 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, VRS5332 (Repair-001) TASK 79-22-41-300-001.

    6. SUBTASK 79-22-41-220-188 Examine the Cover Assembly Protective Finish

      1. Light corrosion or pitting.

      1. Repair, VRS5333 (Repair-002) TASK 79-22-41-300-002.

    7. SUBTASK 79-22-41-220-189 Examine the Cover Assembly Bush B at Location 4

    1. Refer to Figure and Figure.

      2. Inner diameter

        1. Between 0.8669 and 0.8677 in. (22.02 and 22.04 mm).

        1. Accept

        2. More than 0.8677 in. (22.04 mm).

        1. Reject

      3. Perpendicularity

        1. In 0.001 in. (0.025 mm) FIR in relation to surface D.

        1. Accept

        2. More than Step.

        1. Reject

      4. True position

        1. In a diameter of 0.001 in. (0.025 mm) FIR in relation to surface G.

        1. Accept

        2. More than Step.

        1. Reject

    8. SUBTASK 79-22-41-220-190 Examine the Cover Assembly Bush C at Location 5

    1. Refer to Figure and Figure.

      2. Inner diameter

        1. Between 0.8669 and 0.8677 in. (22.02 and 22.04 mm).

        1. Accept

        2. More than 0.8677 in. (22.04 mm).

        1. Reject

      3. Perpendicularity

        1. In 0.001 in. (0.025 mm) FIR in relation to surface D.

        1. Accept

        2. More than Step.

        1. Reject

      4. True position

        1. In a diameter of 0.001 in. (0.025 mm) FIR in relation to points E and F.

        1. Accept

        2. More than Step.

        1. Reject

    9. SUBTASK 79-22-41-220-191 Examine the Cover Assembly Piloting Diameter at Location 6

    1. Refer to Figure and Figure.

      2. Diameter

        1. Between 3.5413 and 3.5394 in. (89.95 and 89.9 mm).

        1. Accept

        2. Less than 3.5394 in. (89.9 mm).

        1. Repair, VRS5335 (Repair-004) TASK 79-22-41-300-002.

    10. Figure: Locations on the Cover Assembly

    Locations on the Cover Assembly

    Locations on the Cover Assembly

Requirements After Job Completion

Follow-On Conditions

NONE
Manufacturer Code:LOCAL
Enterprise Name:LOCALLY SUPPLIED
Manufacturer Code:LOCAL
Tool Number:Workshop inspection equipment
Tool Name:Workshop inspection equipment