TASK 72-32-38-200-101-A00 No. 1 Bearing Compartment Rear Seal Drain Tube - Examine, Inspection-001

DMC:V2500-A0-72-32-3800-00A-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 72-32-38-200-101-A00 No. 1 Bearing Compartment Rear Seal Drain Tube - Examine, Inspection-001

Effectivity

FIG/ITEM

PART NO.

01-200

5A1351

General

This TASK gives the procedure for the inspection of the rear seal drain tube.

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 70-20-01-200-501.

All the parts must be cleaned before any part is examined. Refer to the SPM TASK 70-11-14-300-503.

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 Step and 72-32-38-230-052. Do the test before the part is visually examined. Limits for cracks are given in the SUBTASK for each part.

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 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

NONE

Consumables, Materials and Expendables

NONE

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-32-38-230-051 Examine the Rear Seal Drain Tube (01-200) for Cracks

    1. Clean the parts. Refer to Cleaning-000 TASK 72-32-38-100-100.

      NOTE

      For the method to clean the parts, refer to SPM TASK 70-11-14-300-503.

      2. Do the test for cracks on the parts that are given below. Use the applicable penetrant procedure.

        1. Rear seal drain tube. Refer to SPM TASK 70-23-02-230-501.

          1. Cracked

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

    2. SUBTASK 72-32-38-220-052 Examine the Rear Seal Drain Tube (01-200) Surfaces

    1. Refer to Figure.

      2. Examine the surfaces at locations 1 and 2.

        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 and 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, VRS1265 (Repair-001) TASK 72-32-38-300-001 or SPM VRS7001 (Repair-001) TASK 70-35-24-300-501.

        2. Dented

          1. In area in less than 0.500 in. (12.70 mm) from the tube fitting or bends.

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

          2. In other areas than Step.

            1. Large smooth dents: The diameter is 10 times the depth or larger and the bore is not decreased by more than 10 percent.

            1. Accept

            2. Small smooth dents: On the straight sections not more than 0.08 sq in (51.6 sq mm) in area and not more than 0.015 in. (0.38 mm) in depth.

            1. Accept

            3. More than 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. SPM VRS7001 (Repair-001) TASK 70-35-24-300-501.

          2. In area other than Step: Not more than 0.005 in. (0.12 mm) in depth.

          1. Repair, VRS1265 (Repair-001) TASK 72-32-38-300-001.

          3. More than Step.

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

        4. Galled

          1. On the outer surface of a bend.

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

          2. In areas other than Step: Not more than 0.005 in. (0.12 mm) in depth.

          1. Repair, VRS1265 (Repair-001) TASK 72-32-38-300-001.

          3. More than Step.

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

    3. SUBTASK 72-32-38-220-053 Examine the Rear Seal Drain Tube (01-200) Bore

    1. Refer to Figure.

      2. Plugged

      1. Remove blockage with air blast.

    4. SUBTASK 72-32-38-220-054 Examine the Rear Seal Drain Tube (01-200) Sealing Groove Lands

      1. Examine the sealing groove lands at location 4. See Figure.

        1. Galled

          1. Up to 0.005 in. (0.12 mm) in depth.

          1. Repair, VRS1265 (Repair-001) TASK 72-32-38-300-001.

          2. More than Step.

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

    5. SUBTASK 72-32-38-220-055 Examine the Rear Seal Drain Tube (01-200) Flange

    1. Refer to Figure.

      2. Examine the flange at locations 5 and 6.

        1. Cracked

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

        2. Examine the bolt holes at location 5.

          1. Edges burred

          1. Repair, VRS1265 (Repair-001) TASK 72-32-38-300-001.

        3. Examine the bolt head seating surface at location 6.

          1. Galled

            1. Up to 0.010 in. (0.25 mm) in depth.

            1. Repair, VRS1265 (Repair-001) TASK 72-32-38-300-001.

            2. More than Step.

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

    6. Figure: Location on the Rear Oil Seal Drain Tube

    Location on the Rear Oil Seal Drain Tube

Requirements After Job Completion

Follow-On Conditions

NONE