TASK 71-21-11-200-002 Front Mount Tube - Examine, Inspection-002

DMC:V2500-A0-71-21-1102-00A-300A-C|Issue No:003.00|Issue Date:2018-05-01

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 71-21-11-200-002 Front Mount Tube - Examine, Inspection-002

Effectivity

FIG/ITEM

PART NO.

01-150

5A1698

01-150

5A6025

General

This TASK gives the procedure for the inspection of the engine front mount tube assembly. For the other parts of the forward mount support, refer to TASK 71-21-11-200-000 (INSPECTION-000).

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 the SPM TASK 70-20-01-200-501.

All the parts must be cleaned before any part is examined. Refer to TASK 71-21-11-100-000 (CLEANING-000).

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. Limits for cracks are given in the SUBTASK for each part.

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 the SPM.

References

Refer to 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 are 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 71-21-11-230-051 Examine the Engine Front Mount Tube Assembly (01-150) for Cracks

    1. NOTE

      For the method to clean the part, refer to SPM TASK 70-11-14-300-503, SPM TASK 70-11-29-300-503 and SPM TASK 70-11-15-300-503.

      Clean the part. Refer to TASK 71-21-11-100-000 (CLEANING-000).

    2. Do the crack test on the part that is given below. Use the applicable penetrant inspection procedure.

      PART IDENT

      TASK/SUBTASK

      Engine Front Mount Tube Assembly

      3. Cracked

      1. Reject

    2. SUBTASK 71-21-11-220-060 Examine the Engine Front Mount Tube Assembly (01-150) Outside Diameter

    1. Refer to Figure.

      2. Examine the outside diameter at location 1.

        1. Worn.

          1. If the outside diameter is between 1.4945 in. and 1.4948 in. (37.960 mm and 37.970 mm).

          1. Accept

          2. Less than 1.4945 in. (37.960 mm)

          1. Repair, VRS1075 TASK 71-21-11-300-013 (REPAIR-013)

          3. Missing dry film lubricant

          1. Repair, VRS1101 TASK 71-21-11-300-004 (REPAIR-004)

        2. Nicked

        1. Repair, VRS1103 TASK 71-21-11-300-005 (REPAIR-005)

        3. Scratched

        1. Repair, VRS1103 TASK 71-21-11-300-005 (REPAIR-005)

    3. SUBTASK 71-21-11-220-061 Examine the Engine Front Mount Tube Assembly (01-150) Spherical Diameter

    1. Refer to Figure.

      2. Examine the spherical diameter at location 2.

        1. Worn.

          1. If the spherical diameter is between 3.4224 in. and 3.4251 in. (86.928 mm and 87.000 mm).

          1. Accept

          2. Less than 3.4224 in. (86.928 mm)

          1. Reject

        2. Nicked, scratched, scored and corrosion

        1. Repair, VRS1103 TASK 71-21-11-300-005 (REPAIR-005)

    4. SUBTASK 71-21-11-220-062 Examine the Engine Front Mount Tube Assembly (01-150) Inside Diameter

    1. Refer to Figure.

      2. Examine the inside diameter at location 3.

        1. Worn.

          1. If the inside diameter is between 3.6250 in. and 3.6257 in. (92.075 mm and 92.095 mm).

          1. Accept

          2. More than 3.6257 in. (92.095 mm)

          1. Reject

        2. Scored

        1. Repair, VRS1103 TASK 71-21-11-300-005 (REPAIR-005)

    5. SUBTASK 71-21-11-220-063 Examine the Engine Front Mount Tube Assembly (01-150) Faces

    1. Refer to Figure.

      2. Examine the face at location 4.

        1. Galled.

          1. Not more than 0.003 in. (0.08 mm) in depth.

          1. Accept.

          2. More than in Step

          1. Reject

      3. Examine the face at location 8.

        1. Nicked and scored.

        1. Repair, VRS1103 TASK 71-21-11-300-005 (REPAIR-005).

    6. SUBTASK 71-21-11-220-064 Examine the Engine Front Mount Tube Assembly (01-150) Inserts

    1. Refer to Figure.

      2. Examine the inserts at location 5.

        1. Loose

        1. Repair, VRS1102 TASK 71-21-11-300-006 (REPAIR-006)

    7. SUBTASK 71-21-11-220-007 Examine the Engine Front Mount Tube Assembly (01-150) Bosses

    1. Refer to Figure.

      2. Examine the bosses at location 6.

        1. Galled, nicked, dented, worn, scratched and scored

        1. Repair, VRS1103 TASK 71-21-11-300-005 (REPAIR-005)

    8. SUBTASK 71-21-11-220-008 Examine the Engine Front Mount Tube Assembly (01-150) Corner

    1. Refer to Figure.

      2. Examine the corner at location 7.

        1. Galled, nicked, dented, worn, scratched and scored

        1. Repair, VRS1103 TASK 71-21-11-300-005 (REPAIR-005)

    9. SUBTASK 71-21-11-220-084 Examine the Engine Mount Tube Assembly (01-150) Chamfer

    1. Refer to Figure.

      2. Examine the chamfer at location 9.

        1. Missing dry film lubricant.

        1. Repair, VRS1101 TASK 71-21-11-300-004 (REPAIR-004).

        2. Nicked, scratched and scored.

        1. Repair, VRS1103 TASK 71-21-11-300-005 (REPAIR-005).

    10. SUBTASK 71-21-11-220-083 Examine the Engine Mount Tube Assembly (01-150) all the Surfaces

    1. Refer to Figure.

      2. Examine all the surfaces which do not include the identified location.

        1. Scratched and scored

        1. Repair, VRS1103 TASK 71-21-11-300-005 (REPAIR-005)

    11. Figure: Locations on the Engine Front Mount Tube Assembly

    Locations on the Engine Front Mount Tube Assembly

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Update typo on graphic (Location 6) for Fig 1