TASK 71-73-48-200-106 IDG Drain Tube - Examine, Inspection-006

DMC:V2500-A0-71-73-4804-00A-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 71-73-48-200-106 IDG Drain Tube - Examine, Inspection-006

Effectivity

FIG/ITEM

PART NO.

02-500

740-5792-513

02-500

740-5792-515

02-500

740-5792-517

General

This TASK gives the procedure for the inspection of the drain tube (02-500). For the other drain tubes refer to Inspection-000 TASK 71-73-48-200-100.

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

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 number are in the SPM.

References

Refer to the SPM for data on these items:

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

Inspection of Parts, Refer to 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 71-73-48-230-056 Examine the Drain Tube for Cracks

    1. Clean the tube. Refer to Cleaning-000 TASK 71-73-48-100-100.

      2. Fluorescent penetrant examine the tube and all welds for cracks.

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

          1. Cracked

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

          2. Defective weld

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

    2. SUBTASK 71-73-48-220-071 Examine the Drain Tube at Locations R

    1. Refer to 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 0.25 in. (3.175 mm).

        1. Accept

        2. Other than in Step.

        1. Repair, VRS2889 (Repair-003) TASK 71-73-48-300-003 or SPM VRS7001 (Repair-001) TASK 70-35-24-300-501.

      3. Nicked

        1. Up to 0.014 in. (0.35 mm) deep.

        1. Accept

        2. More than in Step.

        1. Reject

      4. Scratched

        1. Up to 0.014 in. (0.35 mm) deep.

        1. Accept

        2. More than in Step.

        1. Reject

      5. 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. Reject

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

        1. Reject

      6. Rubbed

        1. Up to 0.014 in. (0.35 mm) deep.

        1. Accept

        2. More than in Step.

        1. Reject

    3. SUBTASK 71-73-48-220-072 Examine the Drain Tube at Locations S

    1. Refer to 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 0.125 in. (3.175 mm).

        1. Accept

        2. Other than in Step.

        1. Repair, VRS2889 (Repair-003) TASK 71-73-48-300-003 or SPM VRS7001 (Repair-001) TASK 70-35-24-300-501.

      3. Nicked

        1. Up to 0.014 in. (0.35 mm) deep.

        1. Accept

        2. More than in Step.

        1. Reject

      4. Scratched

        1. Up to 0.014 in. (0.35 mm) deep.

        1. Accept

        2. More than in Step.

        1. Reject

      5. Distorted

      1. Reject

      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. Reject

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

          1. Reject

      7. Rubbed

        1. Up to 0.014 in. (0.35 mm) deep.

        1. Accept

        2. More than in Step.

        1. Reject

    4. SUBTASK 71-73-48-220-073 Examine the End Connectors of the Drain Tube, Locations N and P

    1. Refer to Figure.

      2. Nicked

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

        1. Accept

        2. More than in Step.

        1. Repair, VRS2889 (Repair-003) TASK 71-73-48-300-003.

      3. Burred

      1. Repair, VRS2889 (Repair-003) TASK 71-73-48-300-003.

      4. Damaged

        1. Damage to the lockwire holes.

        1. Repair, VRS2939 (Repair-005) TASK 71-73-48-300-005.

        2. Damage to the threads.

        1. Repair, VRS2939 (Repair-005) TASK 71-73-48-300-005.

    5. SUBTASK 71-73-48-220-074 Examine the Drain Tube Sealing Faces V and W

    1. Refer to Figure.

      2. Scratched

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

        1. Repair, VRS2889 (Repair-003) TASK 71-73-48-300-003.

        2. Other than in Step.

        1. Reject

    6. Figure: Locations on the Drain Tube (02-500)

    Locations on the Drain Tube (02-500)

Requirements After Job Completion

Follow-On Conditions

NONE