TASK 73-11-49-200-105-B00 Control Fuel Tubes (Titanium) - Examine, Inspection-005

DMC:V2500-A0-73-11-4902-01A-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 73-11-49-200-105-B00 Control Fuel Tubes (Titanium) - Examine, Inspection-005

Effectivity

FIG./ITEM

PART NO.

10-100

5R8136

20-500

5R8125

21-100

5R8127

21-500

5R8126

22-500

5R8102

23-100

5R8128

23-500

5R8129

24-100

5R8130

24-500

5R8131

24-500

5R8144

25-100

5R8137

26-100

5R8121

General

This TASK gives the procedure for the inspection of the titanium fuel tubes. For the other fuel tubes and parts, refer to Inspection-000 TASK 73-11-49-200-100 and TASK 73-11-47-200-400 in the Component Maintenance Manual (CMM-MECH-V2500-1IA).

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 they are examined. Refer to Cleaning-000 TASK 73-11-49-100-100.

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 the relevant SUBTASK. Do the crack test before the part is visually examined.

A ** following a repair referenced in this inspection indicates that the repair is not yet published in the current revision of the manual and the part must be rejected. Contact IAE for additional information concerning FAA approved repair date.

Do not discard a 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 must be discarded can be held although no repair is available. The repair of a discarded part could be shown to be necessary at a subsequent date.

All parts must be examined to make sure that all the repairs are completed satisfactorily.

Practices and processes referred to in the procedure by the TASK/SUBTASK number are in the SPM.

NOTE

The consumable materials are given in the related SPM TASK.

References

Refer to the SPM for data on these items.

Definitions of Damage - Specified Types of Damage, SPM TASK 70-02-02-350-501.

Inspection Policy and 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

NONE

Consumables, Materials and Expendables

NONE

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 73-11-49-230-060 Examine the Fuel Tube for Cracks

    1. Clean the parts. Refer to Cleaning-000 TASK 73-11-49-100-100.

      2. Do the test for cracks on the parts that are given in Para 1. EFFECTIVITY. Use the applicable penetrant procedure.

        1. Fuel Tubes. Refer to SPM TASK 70-23-01-230-501.

          1. Cracked

          1. Reject

    2. SUBTASK 73-11-49-220-106 Examine the Fuel Tube Surfaces

    1. Refer to Figure thru Figure.

      2. Examine all the tube surfaces.

        1. Pitted

          1. Up to 0.002 in. (0.05 mm) in depth, 0.004 in. (0.1 mm) in diameter and no other pits within 0.250 in. (6.35 mm) area.

          1. Accept

          2. Other than Step.

          1. Repair, VRS1631 (Repair 009) TASK 73-11-49-300-009.

        2. Pit cluster; within 0.250 in. (6.35 mm) diameter.

          1. Up to 0.001 in. (0.025 mm) in depth, 0.002 in. (0.05 mm) in diameter and no other pit clusters within 6.0 in. (152.4 mm) area.

          1. Accept

          2. Other than Step.

          1. Repair, VRS1631 (Repair 009) TASK 73-11-49-300-009.

        3. Dented

          1. Dents less than 0.25 in. (6.35 mm) from a weld joint

          1. Reject

          2. Smooth dents, if they are round bottomed and the depth is less than 0.025 in. (0.63 mm). Where the dent is on the outside of a bend the maximum depth must be less than 0.015 in. (0.38 mm).

          1. Accept

          3. Dents more than Step.

          1. Reject

        4. Nicked

          1. Nicks that are round bottomed and less than 0.004 in. (0.10 mm) in depth if all burrs are removed.

          1. Accept

          2. Nicks more than Step.

          1. Reject

        5. Galled

          1. Fretting not more than a maximum depth of 0.004 in. (0.10 mm) on the outside surface of the tube.

          1. Repair, VRS1631 (Repair 009) TASK 73-11-49-300-009.

          2. More than Step.

          1. Reject

        6. Scratched or scored

          1. Scores less than 0.004 in. (0.10 mm) in depth.

          1. Repair, VRS1631 (Repair 009) TASK 73-11-49-300-009.

          2. More than in Step.

          1. Reject

        7. Wrinkled on inside bend radius.

          1. Up to 0.005 in. (0.127 mm) from height of peak to depth of valley distance.

          1. Accept

          2. More than in Step.

          1. Reject

    3. SUBTASK 73-11-49-220-107 Examine the Fuel Tube Bore

    1. Refer to Figure thru Figure.

      2. Examine the bore.

        1. Plugged

        1. Clear with dry compressed air

    4. SUBTASK 73-11-49-220-108 Examine the Fuel Tube (22-500), (24-500), (25-100), and (26-100) Lugs

    1. Refer to Figure thru Figure.

      2. Examine the lug.

        1. Distorted

          1. Slight distortion that can be removed, if the original shape is restored and cracks are not caused.

          1. Repair, VRS1631 (Repair 009) TASK 73-11-49-300-009.

          2. Distortion more than Step.

          1. Reject

        2. Lugs broken or cracked.

        1. Reject

        3. Bolt hole edges burred.

        1. Repair, VRS1631 (Repair 009) TASK 73-11-49-300-009.

    5. SUBTASK 73-11-49-220-109 Examine the Fuel Tube (10-100), (20-500), (22-500), (23-500), (24-100) and (26-100) Flanged Adapter, Union Adapter, Retainer and Connector Tee

    1. Refer to Figure thru Figure.

      2. Examine the flanged adapter, union adapter, retainer and connector tee.

        1. Threads

          1. Pick-up

          1. Repair, VRS1631 (Repair 009) TASK 73-11-49-300-009.

          2. Crossed and stripped

          1. Reject

        2. Sealing faces

          1. Galled

          1. Repair, VRS1631 (Repair 009) TASK 73-11-49-300-009.

        3. Bolt hole

          1. Burrs

          1. Repair, VRS1631 (Repair 009) TASK 73-11-49-300-009.

    6. SUBTASK 73-11-49-220-110 Examine the Fuel Tube (20-500), (21-100), (22-100), (23-100), (23-500), (24-100), (24-500), (25-100) and (26-100) Ferrule

    1. Refer to Figure thru Figure.

      2. Examine the ferrule.

        1. Sealing face

          1. Galled

          1. Repair, VRS1631 (Repair 009) TASK 73-11-49-300-009.

    7. SUBTASK 73-11-49-220-111 Examine the Fuel Tube (20-500), (21-100), (22-100), (23-100), (23-500), (24-100), (24-500) and (25-100) Coupling Nut

    1. Refer to Figure thru Figure.

      2. Examine the threads.

        1. Pick-up

        1. Repair, VRS1631 (Repair 009) TASK 73-11-49-300-009.

        2. Crossed and stripped

        1. Reject

    8. Figure: Fuel Tube (21-100) and (22-100) Inspection Locations

    Fuel Tube (21-100) and (22-100) Inspection Locations

    Figure: Fuel Tube (10-100) Inspection Locations

    Fuel Tube (10-100) Inspection Locations

    Figure: Fuel Tube (20-500) Inspection Locations

    Fuel Tube (20-500) Inspection Locations

    Figure: Fuel Tube (22-500) Inspection Locations

    Fuel Tube (22-500) Inspection Locations

    Figure: Fuel Tube (23-100) Inspection Locations

    Fuel Tube (23-100) Inspection Locations

    Figure: Fuel Tube (23-500) And (24-100) Inspection Locations

    Fuel Tube (23-500) And (24-100) Inspection Locations

    Figure: Fuel Tube (24-500) Inspection Locations

    Fuel Tube (24-500) Inspection Locations

    Figure: Fuel Tube (25-100) Inspection Locations

    Fuel Tube (25-100) Inspection Locations

    Figure: Fuel Tube (26-100) Inspection Locations

    Fuel Tube (26-100) Inspection Locations

Requirements After Job Completion

Follow-On Conditions

NONE