TASK 79-22-49-200-101 Engine Scavenge Oil Tubes - Examine, Inspection-001

DMC:V2500-A0-79-22-4900-00A-310A-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 79-22-49-200-101 Engine Scavenge Oil Tubes - Examine, Inspection-001

Effectivity

FIG/ITEM

PART NO.

01-100

5R8032

01-100

5R8140

01-500

5R8112

01-500

5R8139

01-500

5R8141

01-500

6A6196

03-100

5R8111

03-100

5R8138

03-100

6A5367

03-100

6A6195

General

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

Fig/item numbers in parentheses in the procedure agree with those used in the IPC. Only the primary Fig/item numbers are used. For the service bulletin alpha variants refer to the IPC.

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

All the parts must be cleaned before any part is examined. Refer to Cleaning-000 TASK 79-22-49-100-100.

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.

The procedure for those parts which must have a crack test is given in SUBTASK 79-22-49-230-052. Do the test before the part is visually examined.

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.

Definition of Damages, SPM TASK 70-02-02-350-501.

Inspection of Parts, SPM TASK 70-20-01-200-501.

Some data on these items are 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

Consumables, Materials and Expendables

NONE

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 79-22-49-230-066 Examine the Tube Assembly 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 that are given below. Use the applicable penetrant procedure.

        1. Tube assembly. Refer to SPM TASK 70-23-02-230-501.

          1. Cracked

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

    2. SUBTASK 79-22-49-220-129 Examine the Tube Assembly Tube Surface

    1. Refer to 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 or Step.

          1. Repair, VRS1700 (Repair-001) TASK 79-22-49-300-001 or SPM VRS7001 (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. SPM VRS7001 (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 does not more than 0.025 in. (0.64 mm).

          1. Accept

          4. More than in Step or Step.

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

          2. In areas other than Step, any gall.

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

    3. SUBTASK 79-22-49-220-130 Examine the Tube Assembly Tube Bore

    1. Refer to Figure.

      2. Examine the tube bore at location 2.

        1. Plugged

        1. Clean with dry air blast.

    4. SUBTASK 79-22-49-220-131 Examine the Tube Assembly 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 SPM VRS7001 (Repair-001) TASK 70-35-24-300-501.

    5. SUBTASK 79-22-49-220-132 Examine the Tube Assembly Swivel Nut

    1. Refer to Figure.

      2. Examine the swivel nut at location 4.

        1. Threads

          1. Pick-up

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

          2. Crossed

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

          3. Stripped

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

    6. SUBTASK 79-22-49-220-134 Examine the Tube Assembly Union Adaptor

    1. Refer to Figure.

      2. Examine the union adaptor at location 5.

        1. Threads

          1. Pick-up

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

          2. Crossed

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

          3. Stripped

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

        2. Flange

          1. Cracked

          2. Galled

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

          3. Bolt hole

            1. Burred

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

    7. SUBTASK 79-22-49-220-135 Examine the Tube Assembly Lug

    1. Refer to Figure.

      2. Examine the lug at location 6.

        1. Cracked

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

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

    8. SUBTASK 79-22-49-220-136 Examine the Tube Assembly Tube End Fitting

    1. Refer to Figure.

      2. Examine the tube end fitting at location 7.

        1. Sealing face

          1. Galled

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

        2. Bolt hole

          1. Burred

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

        3. Sealing ring groove land.

          1. Galled

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

    9. Figure: Locations on the Tube Assembly

    Locations on the Tube Assembly

Requirements After Job Completion

Follow-On Conditions

NONE
Manufacturer Code:LOCAL
Enterprise Name:LOCALLY SUPPLIED
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