TASK 79-22-49-200-107 Engine Scavenge Oil Tubes - Examine, Inspection-007

DMC:V2500-A0-79-22-4900-06A-310A-C|Issue No:002.00|Issue Date:2018-05-01

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 79-22-49-200-107 Engine Scavenge Oil Tubes - Examine, Inspection-007

Effectivity

FIG./ITEM

PART NO.

10-100

5A8748

10-100

6B1584

10-500

5A8801

10-500

5A9088

10-500

5A8790

General

This TASK gives the procedure for the inspection of the tube assembly. For the other scavenge oil tubes-engine parts, refer to Inspection-000 TASK 79-22-49-200-100.

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 the 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 the 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 70-20-01-200-501.

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

NameManufacturerPart Number / IdentificationQuantityRemark
Fluorescent Penetrant Inspection EquipmentLOCALFluorescent Penetrant Inspection Equipment
Borescope Inspection EquipmentLOCALBorescope Inspection Equipment

Consumables, Materials and Expendables

NONE

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 79-22-49-230-055 Examine the Tube Assembly (10-100 and 10-500) for Cracks

    1. Clean the parts. Refer to Cleaning-000 TASK 79-22-49-100-100.

      2. Do the test for cracks on the parts. Refer to SPM TASK 70-23-01-230-501..

        1. Tube assembly

          1. Cracked

          1. Repair, VRS7001 SPM (Repair 001) TASK 70-35-24-300-501.

    2. SUBTASK 79-22-49-220-075 Examine the Tube Assembly (10-100 and 10-500) Tube Surface

    1. Refer to Figure and Figure.

      2. Examine the tube surface at location 1.

        1. Pitted

          1. Unlimited number of pits not more than 0.001 in. (0.025 mm) in depth, 0.062 in. (1.57 mm) in length and 0.010 in. (0.25 mm) in width.

          1. Accept

          2. Maximum of three pits for each 2.00 in. (50.8 mm) length of tubing; not more than 0.003 in. (0.075 mm) in depth, 0.062 in. (1.57 mm) in length, 0.010 in. (0.25 mm) in width and no other dents within 0.125 in. (3.175 mm).

          1. Accept

          3. Other than in Step and Step.

          1. Repair, VRS1700 (Repair 001) TASK 79-22-49-300-001 or VRS7001 SPM (Repair 001) TASK 70-35-24-300-501.

        2. Dented

          1. In area of bend, or within 0.500 in. (12.70 mm) of bend or fitting.

          1. Repair, VRS7001 SPM (Repair 001) TASK 70-35-24-300-501.

          2. In areas other than Step, of large smooth area if the maximum diameter is ten times the depth and bore is not decreased by more than ten per cent at any one point.

          1. Accept

          3. In areas other than Step, of small smooth area, that is up to 0.124 sq in. (80.0 sq mm) if depth is not more than 0.025 in. (0.64 mm).

          1. Accept

          4. More than in Step or Step.

          1. Repair, VRS7001 SPM (Repair 001) TASK 70-35-24-300-501.

        3. Nicked

          1. On the outer surface of a bend.

          1. Repair, VRS1700 (Repair 001) TASK 79-22-49-300-001 or VRS7001 SPM (Repair 001) TASK 70-35-24-300-501.

          2. In areas other than Step , any nicks

          1. Repair, VRS1700 (Repair 001) TASK 79-22-49-300-001 or VRS7001 SPM (Repair 001) TASK 70-35-24-300-501.

        4. Galled

          1. On the outer surface of a bend.

          1. Repair, VRS1700 (Repair 001) TASK 79-22-49-300-001 or VRS7001 SPM (Repair 001) TASK 70-35-24-300-501.

          2. In areas other than Step, any galls

          1. Repair, VRS1700 (Repair 001) TASK 79-22-49-300-001 or VRS7001 SPM (Repair 001) TASK 70-35-24-300-501.

    3. SUBTASK 79-22-49-220-076 Examine the Tube Assembly (10-100 and 10-500) Tube Bore

    1. Refer to Figure and Figure.

      2. Examine the tube bore at location 2.

        1. Plugged

        1. Clean with dry air blast

    4. SUBTASK 79-22-49-220-077 Examine the Tube Assembly (10-100 and 10-500) Ferrule

    1. Refer to Figure.

      2. Examine the ferrule at location 3.

        1. Sealing face

          1. Galled

          1. Repair, VRS1700 (Repair 001) TASK 79-22-49-300-001 or VRS7001 SPM (Repair 001) TASK 70-35-24-300-501.

    5. SUBTASK 79-22-49-220-078 Examine the Tube Assembly (10-100 and 10-500) Collar Retaining

    1. Refer to Figure.

      2. Examine the collar retaining at location 4.

        1. Cracked

        1. Repair, VRS7001 SPM (Repair 001) TASK 70-35-24-300-501.

        2. Galled

        1. Repair, VRS1700 (Repair 001) TASK 79-22-49-300-001 or VRS7001 SPM (Repair 001) TASK 70-35-24-300-501.

    6. SUBTASK 79-22-49-220-079 Examine the Tube Assembly (10-100 and 10-500) Swivel Nuts

    1. Refer to Figure.

      2. Examine the swivel nut at location 5.

        1. Threads

          1. Pick-up

          1. Repair, VRS1700 (Repair 001) TASK 79-22-49-300-001.

          2. Crossed

          1. Repair, VRS7001 SPM (Repair 001) TASK 70-35-24-300-501.

          3. Stripped

          1. Repair, VRS7001 SPM (Repair 001) TASK 70-35-24-300-501.

    7. SUBTASK 79-22-49-220-080 Examine the Tube Assembly (10-100 and 10-500) Union Adapter

    1. Refer to Figure and Figure.

      2. Examine the union adapter at location 6.

        1. Threads

          1. Pick-up

          1. Repair, VRS1700 (Repair 001) TASK 79-22-49-300-001.

          2. Crossed

          1. Repair, VRS7001 SPM (Repair 001) TASK 70-35-24-300-501.

          3. Stripped

          1. Repair, VRS7001 SPM (Repair 001) TASK 70-35-24-300-501.

        2. Sealing face

          1. Galled

          1. Repair, VRS1700 (Repair 001) TASK 79-22-49-300-001 or VRS7001 SPM (Repair 001) TASK 70-35-24-300-501.

    8. SUBTASK 79-22-49-220-081 Examine the Tube Assembly (10-100 and 10-500) Lug

    1. Refer to Figure and Figure.

      2. Examine the lug at location 7.

        1. Cracked

        1. Repair, VRS7001 SPM (Repair 001) TASK 70-35-24-300-501.

        2. Distorted, small distortion can be removed if crack are not caused.

          1. Galled

          1. Repair, VRS1700 (Repair 001) TASK 79-22-49-300-001.

    9. SUBTASK 79-22-49-220-082 Examine the Tube Assembly (04-100 and 04-500) Elbow Adapter

    1. Refer to Figure and Figure.

      2. Examine the elbow adapter at location 8.

        1. Sealing face

          1. Galled

          1. Repair, VRS1700 (Repair 001) TASK 79-22-49-300-001 or VRS7001 SPM (Repair 001) TASK 70-35-24-300-501.

        2. Flange

          1. Cracked

          1. Repair, VRS7001 SPM (Repair 001) TASK 70-35-24-300-501.

          2. Galled

          1. Repair, VRS1700 (Repair 001) TASK 79-22-49-300-001 or VRS7001 SPM (Repair 001) TASK 70-35-24-300-501.

        3. Bolt hole

          1. Burred

          1. Repair, VRS1700 (Repair 001) TASK 79-22-49-300-001.

    10. SUBTASK 79-22-49-220-083 Examine the Tube Assembly (10-100 and 10-500) Connector Swivel

    1. Refer to Figure.

      2. Examine the connector swivel at location 9.

        1. Sealing face

          1. Galled

          1. Repair, VRS1700 (Repair 001) TASK 79-22-49-300-001 or VRS7001 SPM (Repair 001) TASK 70-35-24-300-501.

    11. SUBTASK 79-22-49-220-145 Examine the Tube Assembly (10-100) for PN 6B1584 only

    1. Refer to Figure.

      2. Examine the vent restrictor at location 10.

        1. Pitted

          1. Unlimited number of pits not more than 0.001 in. (0.025 mm) in depth, 0.062 in. (1.57 mm) in length and 0.010 in. (0.25 mm) in width.

          1. Accept

          2. Maximum of three pits for each 2.00 in. (50.8 mm) length; not more than 0.003 in. (0.075 mm) in depth, 0.062 in. (1.57 mm) in length, 0.010 in. (0.25 mm) in width and no other dents within 0.125 in. (3.175 mm).

          1. Accept

          3. Other than in Step and Step.

          1. Repair, VRS1700 (Repair 001) TASK 79-22-49-300-001 or VRS7001 SPM (Repair 001) TASK 70-35-24-300-501.

        2. Dented

          1. Within 0.500 in. (12.70 mm) of weld areas.

          1. Repair, VRS7001 SPM (Repair 001) TASK 70-35-24-300-501.

          2. In areas other than Step depth not more than 0.003 in. (0.07 mm) and minimum diameter not less than twenty times the depth.

          1. Accept

          3. More than in Step

          1. Repair, VRS7001 SPM (Repair 001) TASK 70-35-24-300-501.

        3. Nicked

          1. Within 0.500 in. (12.70 mm) of weld areas.

          1. VRS7001 SPM (Repair 001) TASK 70-35-24-300-501.

          2. In areas other than Step , any nicks

          1. Repair, VRS1700 (Repair 001) TASK 79-22-49-300-001 or VRS7001 SPM (Repair 001) TASK 70-35-24-300-501.

        4. Galled

          1. Within 0.500 in. (12.70 mm) of weld areas.

          1. Repair, VRS1700 (Repair 001) TASK 79-22-49-300-001 or VRS7001 SPM (Repair 001) TASK 70-35-24-300-501.

          2. In areas other than Step, any galls

          1. Repair, VRS1700 (Repair 001) TASK 79-22-49-300-001 or VRS7001 SPM (Repair 001) TASK 70-35-24-300-501.

    12. SUBTASK 79-22-49-220-146 Examine the Tube Assembly (10-100) for PN 6B1584 only

    1. Refer to Figure.

      Examine the vent restrictor at location 11.

    2. Do a Borescope Inspection for the vent restrictor (Make sure that cleaning is done before Borescope Inspection)

        1. Plugged

        1. Clean by SPM TASK 70-11-03-300-503 and dry air blast.

        2. Residual oil

        1. Clean by SPM TASK 70-11-03-300-503 and dry air blast.

    13. Figure: Locations on the Tube Assembly

    Locations on the Tube Assembly

    Figure: Locations on the Tube Assembly for PN 6B1584 only

    Locations on the Tube Assembly for PN 6B1584 only

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Updated per EC15VU502A

Manufacturer Code:LOCAL
Enterprise Name:LOCALLY SUPPLIED
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