TASK 79-21-49-200-107 Engine Pressure Oil Tubes - Examine, Inspection-007

DMC:V2500-A0-79-21-4900-06A-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 79-21-49-200-107 Engine Pressure Oil Tubes - Examine, Inspection-007

Effectivity

FIG/ITEM

PART NO.

14-100

5R8223

15-500

5R8084

16-100

5R8225

16-100

5R8142

16-100

6A5013

General

For the other engine pressure oil tube parts refer to Inspection-000 TASK 79-21-49-200-100.

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 cleaned before the part is examined. Refer to TASK 79-21-49-100-100.

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 the 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 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/SUBTASK 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.

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NONE

Consumables, Materials and Expendables

NONE

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 79-21-49-230-063 Examine the Tube (14-100, 15-500 and 16-100) for Cracks

    1. Clean the parts. Refer to TASK 79-21-49-100-400.

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

        1. Tube (14-100, 15-500 and 16-100). Refer to SPM TASK 70-23-01-300-503.

          1. Cracked

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

    2. SUBTASK 79-21-49-220-104 Examine the Tube (14-100, 15-500 and 16-100) Surface

      1. Examine the surface.

        1. Dented

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

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

          2. Smooth dents, which are round bottomed and depth 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 in Step.

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

        2. Nicked

          1. Nicks which 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 in Step.

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

        3. Fretted

          1. Fretting not more than a maximum depth of 0.004 in. (0.10 mm) on the outside surface of a bend and 0.010 in. (0.25 mm) on remaining section of the tube.

          1. Accept

          2. More than in Step.

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

        4. Scored

          1. Any scores.

          1. Reject

    3. SUBTASK 79-21-49-220-105 Examine the Tube (14-100, 15-500 and 16-100) Bore

      1. Examine the bore.

        1. Plugged

        1. Clear with dry compressed air.

    4. SUBTASK 79-21-49-220-106 Examine the Tube (14-100, 15-500 and 16-100) Filter Housing, Elbow Adapter, Flanged Adapter, and Union Adapter

      1. Examine the adapter.

        1. Threads

          1. Pick-up

          1. Reject

          2. Crossed and stripped.

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

        2. Sealing face.

          1. Galled

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

        3. Bolt hole.

          1. Burred

          1. Reject

        4. Lockwire hole.

          1. Damaged

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

    5. SUBTASK 79-21-49-220-107 Examine the Tube (15-500) Ferrule and Coupling Nut

      1. Examine the ferrule.

        1. Sealing face.

          1. Galled

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

      2. Examine the nut.

        1. Threads

          1. Pick-up

          1. Reject

          2. Crossed and stripped.

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

        2. Lockwire hole damaged.

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

    6. SUBTASK 79-21-49-220-108 Examine the Tube (16-100) Lug

      1. Cracked or damaged.

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

      2. Bolt holes burred.

      1. Reject

Requirements After Job Completion

Follow-On Conditions

NONE