TASK 73-11-47-200-101 Main Fuel Supply Fuel Tubes - Examine, Inspection-001

DMC:V2500-A0-73-11-4700-00A-310A-C|Issue No:002.00|Issue Date:2020-08-01

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 73-11-47-200-101 Main Fuel Supply Fuel Tubes - Examine, Inspection-001

Effectivity

FIG./ITEM

PART NO.

01-100

740-5650-501

01-100

745-5650-501

01-100

745-5650-505

General

This TASK gives the procedure for the inspection of the power plant rigid fuel tube. For the other power plant rigid fuel tube parts, refer to Inspection-000 TASK 73-11-47-200-100 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.

All the parts must be cleaned before they are examined. Refer to Cleaning-000 TASK 73-11-47-100-100.

All the parts must be visually examined for damage, corrosion and wear. Defects that are not identified in the procedure must be referred to IAE.

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 number 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.

Procedures for crack tests

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 73-11-47-230-053 Examine the Fuel Tube (01-100) for Cracks

      1. Clean the part, refer to Cleaning-000 TASK 73-11-47-100-100

        1. Do a crack test on the part given below. Use the applicable penetrant inspection procedure.

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

          2. Cracked

          1. Reject

          3. Defective weld

          1. Reject

    2. SUBTASK 73-11-47-220-054 Examine the Fuel Tube (01-100) at Locations R and S

    1. Refer to Figure.

      2. Kinked.

      1. Reject.

      3. Nicked.

        1. Not more than 0.020 in. (0.51 mm) in depth.

        1. Repair, VRS2899 (Repair 006) TASK 73-11-47-300-006.

        2. More than in Step.

        1. Reject.

      4. Rubbed.

        1. Not more than 0.020 in. (0.51 mm) in depth.

        1. Repair, VRS2899 (Repair 006) TASK 73-11-47-300-006.

        2. More than in Step.

        1. Reject.

      5. Scratched

        1. Not more than 0.020 in. (0.51 mm) in depth.

        1. Repair, VRS2899 (Repair 006) TASK 73-11-47-300-006.

        2. More than in Step.

        1. Reject

      6. Distorted

        1. At locations S

          1. Not more than 0.038 in. (0.95 mm) in depth.

          1. Accept

          2. More than in Step.

          1. Reject

    3. SUBTASK 73-11-47-220-057 Examine the Fuel Tube (02-100) Connector M

    1. Refer to Figure.

      2. Nicked

        1. Not more than 0.020 in. (0.51 mm) in depth.

        1. Repair, VRS2899 (Repair 006) TASK 73-11-47-300-006.

        2. More than in Step.

        1. Reject

      3. Burred

      1. Repair, VRS2899 (Repair 006) TASK 73-11-47-300-006.

      4. Groove P

        1. Damaged

        1. Reject

      5. Flange T

        1. Distorted

        1. Reject

      6. Bolt holes Q

        1. Scored.

        1. Reject.

      7. Face U.

        1. Circumferential scratches.

          1. Not more than 0.010 in. (0.25 mm) in depth.

          1. Repair, VRS2899 (Repair 006) TASK 73-11-47-300-006.

          2. Other than in Step.

          1. Reject.

    4. SUBTASK 73-11-47-220-072 Examine the Fuel Tube (01-100) Connector Nut at Location N

    1. Refer to Figure.

      2. Nicked.

        1. Not more than 0.010 in. (0.25 mm) in depth.

        1. Repair, VRS2899 (Repair 006) TASK 73-11-47-300-006.

        2. More than in Step.

        1. Reject.

      3. Burred

      1. Repair, VRS2899 (Repair 006) TASK 73-11-47-300-006.

      4. Lockwire holes

        1. Damaged

        1. Repair, VRS2936 (Repair 003) TASK 73-11-47-300-003.

      5. Threads

        1. Damaged

        1. Repair, VRS2899 (Repair 006) TASK 73-11-47-300-006.

    5. SUBTASK 73-11-47-220-055 Examine the Fuel Tube (01-100) Sealing Face V

    1. Refer to Figure.

      2. Scratched.

        1. Circumferential scratches not more than 0.015 in. (0.38 mm) in depth.

        1. Repair, VRS2899 (Repair 006) TASK 73-11-47-300-006.

        2. Other than in Step.

        1. Reject.

    6. SUBTASK 73-11-47-220-073 Examine the Fuel Tube (01-100) with Tee Piece Fitted with Fuel Pipe or Blanking Plug at Location W

    1. Refer to Figure.

      2. Kinked.

      1. Reject.

      3. Nicked.

      1. Reject.

      4. Rubbed.

      1. Reject.

      5. Scratched.

      1. Reject.

    7. Figure: Fuel Tube Inspection Locations

    Fuel Tube Inspection Locations

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Revised the procedure and figure. (12VN805)