TASK 79-21-49-200-108 Engine Pressure Oil Tubes - Examine The Engine Pressure Oil Tube Remaining Parts, Inspection-008

DMC:V2500-A0-79-21-4900-07A-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 79-21-49-200-108 Engine Pressure Oil Tubes - Examine The Engine Pressure Oil Tube Remaining Parts, Inspection-008

Effectivity

FIG/ITEM

PART NO.

06-478

MS16625-4056

06-481

5W8449

06-481

6A5442

15-488

MS16625-4037

15-528

5W1110

15-536

5W1110

16-144

5W1110

16-152

5W1110

16-160

5W1110

VARIOUS

BOLT

VARIOUS

WASHER

VARIOUS

NUT

VARIOUS

CLIP

VARIOUS

SPACER

VARIOUS

CLIPNUT

General

For the other engine pressure oil tube parts refer to Inspection-000 TASK 79-21-49-200-100 and Inspection-000 V2500-A0-79-21-4900-00A-307A-C in the Component Maintenance Manual (CMM-MECH-V2500-1IA).

Fig/item numbers in parentheses in the procedure agree with those given 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.

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 79-21-49-220-092 Examine the Bolts

      1. Threads

        1. Crossed

        1. Reject

        2. Stripped

        1. Reject

        3. Missing

        1. Reject

        4. Worn

        1. Refer to SPM TASK 70-42-01-400-501.

      2. Surfaces

        1. Nicked

          1. Nicked to a depth of 0.002 in. (0.05 mm) with no high metal.

          1. Accept

          2. More than in Step.

          1. Reject

      3. Head

        1. Burred

          1. Burred but with no decrease in function.

          1. Accept

          2. In excess of Step.

          1. Reject

    2. SUBTASK 79-21-49-220-093 Examine the Self-Locking Nuts/Clipnuts

      1. Threads

        1. Crossed

        1. Reject

        2. Stripped

        1. Reject

        3. Missing

        1. Reject

        4. Worn

        1. Refer to SPM TASK 70-42-01-400-501.

      2. Surfaces

        1. Burred/nicked

          1. Burred/nicked but with no decrease in function.

          1. Accept

          2. In excess of Step.

          1. Reject

      3. Clip

        1. Distorted

        1. Reject

      4. Unsatisfactory grip.

      1. Reject

    3. SUBTASK 79-21-49-220-094 Examine the Washers

      1. Surfaces

        1. Burred

        1. Reject

    4. SUBTASK 79-21-49-220-095 Examine the Spacers

      1. Surfaces

        1. Nicked

          1. Nicked to a depth of 0.002 in. (0.05 mm) with no high metal.

          1. Accept

          2. More than in Step.

          1. Reject

      2. Scratched

        1. Nicked to a depth of 0.002 in. (0.05 mm) with no high metal.

        1. Accept

        2. More than in Step.

        1. Reject

      3. Burred

      1. Reject

    5. SUBTASK 79-21-49-220-096 Examine the Tube Clips

      1. Cushion

        1. Torn/missing

        1. Reject

      2. Bolt holes.

        1. Distorted/worn but with no decrease in function.

        1. Accept

        2. Torn/cracked

        1. Reject

      3. Clip

        1. Distorted

        1. Reject

    6. SUBTASK 79-21-49-220-097 Examine the Tube Clips (15-528, -536, 16-144, -152 and -160)

      1. Surfaces

        1. Nicked, scratched or scored.

          1. Not more than 0.002 in. (0.05 mm) in depth with no high metal.

          1. Accept

          2. Other than in Step.

          1. Reject

      2. Bolt hole.

        1. Distorted/worn but with no decrease in function.

        1. Accept

        2. Torn/cracked.

        1. Reject

      3. Clip

        1. Distorted

        1. Reject

    7. SUBTASK 79-21-49-220-109-001 Examine the Restrictor (06-481, 5W8449) (Pre SBE 79-0070)

      1. Nicked, scratched or scored.

        1. Not more than 0.002 in. (0.05 mm) in depth with no high metal.

        1. Accept

        2. Other than in Step.

        1. Reject

      2. Orifice diameter.

        1. Not more than 0.152 in. (3.86 mm).

        1. Accept

        2. More than in Step.

        1. Reject

    8. SUBTASK 79-21-49-220-109-002 Examine the Restrictor (06-481, 6A5442) (SBE 79-0070)

      1. NOTE

        SBE 79-0070: Introduction of revised oil feed system restrictors.

        Nicked, scratched or scored.

        1. Not more than 0.002 in. (0.05 mm) in depth with no high metal.

        1. Accept

        2. Other than in Step.

        1. Reject

      2. Orifice diameter.

        1. Not more than 0.135 in. (3.42 mm).

        1. Accept

        2. More than in Step.

        1. Reject

    9. SUBTASK 79-21-49-220-110 Examine the Restrictor Retaining Ring (06-478 and 15-488)

      1. Distorted/broken.

      1. Reject

Requirements After Job Completion

Follow-On Conditions

NONE