TASK 71-71-48-200-101 Fuel Drain Tubes - Examine, Inspection-001

DMC:V2500-A0-71-71-4800-00A-310A-C|Issue No:003.00|Issue Date:2019-02-01

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 71-71-48-200-101 Fuel Drain Tubes - Examine, Inspection-001

Effectivity

FIG/ITEM

PART NO.

01-100

740-5790-503

01-100

740-5790-505

01-100

740-5790-507

01-500

740-5791-503

01-500

740-5791-505

02-100

740-5261-503

02-100

740-5261-505

02-100

740-5261-507

02-500

740-5700-505

02-500

740-5700-507

02-500

740-5700-501

02-500

745-5700-503

03-100

740-5702-507

03-100

740-5702-509

03-400

740-5688-509

03-400

740-5688-507

03-400

740-5688-511

03-400

740-5688-513

03-400

745-5688-501

03-700

740-5692-503

03-700

740-5692-505

03-700

740-5692-507

General

This TASK gives the procedure for the inspection of the fuel drain tubes.

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

All the parts must be cleaned before any part is examined. Refer to Cleaning-000 TASK 71-71-48-100-100.

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 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 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 SPM.

References

Refer to SPM for data on these items.

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

Record and Control of the Lives of Parts, SPM TASK 70-05-00-220-501.

Inspection of Parts, SPM TASK 70-20-00-200-501.

Some data on these items is contained in this TASK. For more data on these items refer to 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 71-71-48-230-052 Examine the Fuel Drain Tube (01-100, 01-500, 02-100, 02-500, 03-100, 03-400, 03-700) and All Welds for Cracks

    1. Clean the tube. Refer to Cleaning-000 TASK 71-71-48-100-100.

      2. Fluorescent penetrant examine the tube for cracks. Use the applicable penetrant procedure. Refer to SPM TASK 70-23-01-230-501.

        1. Cracked

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

        2. Defective weld

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

    2. SUBTASK 71-71-48-220-055 Examine the Fuel Drain Tube (01-100, 01-500, 02-100, 02-500, 03-100, 03-400, 03-700) at Locations R

    1. Refer to Figure thru Figure.

      2. Pitted

        1. Unlimited number of pits not more than 0.062 in. (1.57 mm) in length and 0.010 in. (0.25 mm) in width with no other damage within 0.1250 in. (3.175 mm).

        1. Accept

        2. Maximum of three pits for each 2.00 in (50.8 mm) length of tube, 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 0.1250 in. (3.175 mm).

        1. Accept

        3. Other than in Step or Step.

        1. Repair, VRS2881 TASK 71-71-48-300-003 (REPAIR-003) or Repair, VRS7001 SPM TASK 70-35-24-300-501 (REPAIR-001).

      3. Nicked

        1. Up to 0.014 in. (0.36 mm).

        1. Accept

        2. More than in Step.

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

      4. Scratched

        1. Up to 0.014 in. (0.36 mm) deep.

        1. Accept

        2. More than in Step.

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

      5. Dented

        1. One or more dents, with more than 1.00 in. (25.40 mm) between the edges of each of the dents.

          1. Up to 0.050 in. (1.27 mm) deep with the radius of the dent not less than 0.056 in. (1.42 mm).

          1. Accept

          2. Other than in Step.

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

        2. More than one dent, with less than 1.00 in. (25.4 mm) between the edges of each of the dents.

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

      6. Rubbed

        1. Up to 0.014 in. (0.36 mm) deep.

        1. Accept

        2. More than in Step.

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

    3. SUBTASK 71-71-48-220-056 Examine the Fuel Drain Tube (01-100, 01-500, 02-100, 02-500, 03-100, 03-400, 03-700) at Locations S

    1. Refer to Figure thru Figure.

      2. 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 tube, 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 0.1250 in. (3.175 mm).

        1. Accept

        3. Other than in Step or Step

        1. Repair, VRS2885 TASK 71-71-49-300-002 (REPAIR-002) or Repair, VRS7001 SPM TASK 70-35-24-300-501 (REPAIR-001).

      3. Nicked

        1. Up to 0.014 in. (0.36 mm).

        1. Accept

        2. More than in Step.

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

      4. Scratched

        1. Up to 0.014 in. (0.36 mm) deep.

        1. Accept

        2. More than in Step.

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

      5. Distorted

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

      6. Dented

        1. One or more dents, with more than 1.00 in. (25.4 mm) between the edges of each of the dents.

          1. Up to 0.050 in. (1.27 mm) deep with the radius of the dent not less than 0.056 in. (1.42 mm).

          1. Accept

          2. Other than in Step.

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

        2. More than one dent, with less than 1.00 in. (25.4 mm) between the edges of each of the dents.

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

      7. Rubbed

        1. Up to 0.014 in. (0.36 mm) deep.

        1. Accept

        2. More than in Step.

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

    4. SUBTASK 71-71-48-220-057 Examine the Fuel Drain Tube (01-100, 01-500, 02-100, 02-500, 03-100, 03-400, 03-700) End Connectors at Locations N and P

    1. Refer to Figure thru Figure.

      2. Nicked

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

        1. Accept

        2. More than in Step.

        1. Repair, VRS2881 TASK 71-71-48-300-003 (REPAIR-003) or Repair, VRS7001 SPM TASK 70-35-24-300-501 (REPAIR-001).

      3. Burred

      1. Repair, VRS2881 TASK 71-71-48-300-003 (REPAIR-003) or Repair, VRS7001 SPM TASK 70-35-24-300-501 (REPAIR-001).

      4. Damaged

        1. Damage to the lock-wire holes.

        1. Repair, VRS2937 TASK 71-71-48-300-005 (REPAIR-005) or Repair, VRS7001 SPM TASK 70-35-24-300-501 (REPAIR-001).

        2. Damage to threads.

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

    5. SUBTASK 71-71-48-220-058 Examine the Fuel Drain Tube (01-100, 01-500, 02-100, 02-500, 03-100, 03-400, 03-700) Sealing-Faces V and W

    1. Refer to Figure thru Figure.

      2. Scratched

        1. Circumferential scratches up to 0.010 in. (0.25 mm) deep.

        1. Repair, VRS2881 TASK 71-71-48-300-003 (REPAIR-003).

        2. More than in Step.

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

    6. SUBTASK 71-71-48-220-059 Examine the Fuel Drain Tube (01-100, 02-100, 02-500, 03-100, 03-700) Support Clips

    1. Refer to Figure, Figure, Figure and Figure.

      2. Distorted

      1. Repair, VRS2943 TASK 71-71-48-300-007 (REPAIR-007) or Repair, VRS7001 SPM TASK 70-35-24-300-501 (REPAIR-001).

    7. Figure: Locations On The Fuel Drain Tube (01-500)

    Locations On The Fuel Drain Tube (01-500)

    Figure: Locations On The Fuel Drain Tube (02-100)

    Locations On The Fuel Drain Tube (02-100)

    Figure: Locations On The Fuel Drain Tube (03-400)

    Locations On The Fuel Drain Tube (03-400)

    Figure: Locations On The Fuel Drain Tube (03-700)

    Locations On The Fuel Drain Tube (03-700)

    Figure: Locations On The Fuel Drain Tube (02-500)

    Locations On The Fuel Drain Tube (02-500)

    Figure: Locations On The Fuel Drain Tube (03-100)

    Locations On The Fuel Drain Tube (03-100)

    Figure: Locations On The Fuel Drain Tube (01-100)

    Locations On The Fuel Drain Tube (01-100)

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Revised the effectivity table. (15VN805)