TASK 72-42-20-200-109 No. 4 Bearing Scavenge Oil Tube Elbow - Examine, Inspection-009

DMC:V2500-A0-72-42-2025-00A-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 72-42-20-200-109 No. 4 Bearing Scavenge Oil Tube Elbow - Examine, Inspection-009

Effectivity

FIG/ITEM

PART NO.

02-340

2A1977

02-340

2A3818

General

This TASK gives the procedure for the inspection of the No.4 bearing scavenge tube elbow. For the other parts of the No. 4 bearing compartment tubes refer to Inspection-000 TASK 72-42-20-200-100.

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 the SPM TASK 70-20-00-200-501.

All the parts must be cleaned before any part is examined. Refer to the SPM TASK 70-10-00-100-501.

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.

The procedure for those parts which must have a crack test is given in Step or Step Do the test before the part is visually inspected.

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 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

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NONE

Consumables, Materials and Expendables

NONE

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-42-20-230-071-001 Examine the No. 4 Bearing Scavenge Tube Elbow (02-340) for Cracks

    1. Clean the part. Refer to the Cleaning-000 TASK 72-42-20-100-100.

      2. Do the test for cracks on the part that is given below. Use the applicable penetrant procedure.

        1. No. 4 bearing scavenge tube elbow. Refer to SPM TASK 70-23-01-230-501 (Dip or Spray).

          1. Cracked

          1. Reject

    2. SUBTASK 72-42-20-230-071-002 Examine the No. 4 Bearing Scavenge Tube Elbow (02-340) for Cracks

    1. Clean the part. Refer to the Cleaning-000 TASK 72-42-20-100-100.

      2. Do the test for cracks on the part that is given below. Use the applicable penetrant procedures.

        1. No. 4 bearing scavenge tube elbow. Refer to SPM TASK 70-23-02-230-501 (Dip or Spray).

          1. Cracked

          1. Reject

    3. SUBTASK 72-42-20-220-096 Examine the No. 4 Bearing Scavenge Tube Elbow (02-340) for High Metal and Chipped Hardcoat on the Sealing Area

    1. Refer to Figure.

      2. Examine the elbow at location 1 for high metal and chipped hardcoat on the sealing area.

        1. High metal

        1. Reject

        2. Chipped hardcoat

          1. If the chipped hardcoat is in 0.030 in. (0.762 mm) of the edge.

          1. Accept

          2. Other than Step.

          1. Reject

    4. SUBTASK 72-42-20-220-097 Examine the No. 4 Bearing Scavenge Tube Elbow (02-340) for High Metal on the Conical Seat

    1. Refer to Figure.

      2. Examine the elbow at location 2 for high metal on the conical seat.

        1. High metal

        1. Reject

    5. SUBTASK 72-42-20-220-122 Examine the No. 4 Bearing Scavenge Tube Elbow (02-340) for Wear of the Sealing Ring Groove

    1. Refer to Figure.

      2. Examine diameter Y

        1. If diameter Y is more than 2.341 inches (59.461 mm).

        1. Accept

      2. Other than Step.

        Repair, VRS3656 (Repair-018) TASK 72-42-20-300-018.

      3. Examine diameter X

        1. If dimension X is less than 0.091 in. (2.311 mm).

        1. Accept

      2. Other than Step.

        Repair, VRS3656 (Repair-018) TASK 72-42-20-300-018.

    6. Figure: No. 4 Bearing Scavenge Tube Elbow (02-340) - Inspection Locations

    No. 4 Bearing Scavenge Tube Elbow (02-340) - Inspection Locations

Requirements After Job Completion

Follow-On Conditions

NONE