TASK 72-32-86-200-001-C00 Intermediate Structure Rear Fairing - Examine, Inspection-001

DMC:V2500-A0-72-32-8600-00C-300A-C|Issue No:002.00|Issue Date:2020-05-01

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 72-32-86-200-001-C00 Intermediate Structure Rear Fairing - Examine, Inspection-001

Effectivity

FIG/ITEM

PART NO.

01-100

5A1688

01-100

5A1755

General

This TASK gives the procedure for the inspection of the rear fairing assembly.

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 72-32-86-100-000 (CLEANING-000).

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.

A**following repair referenced in this inspection indicates that the repair is not yet published in the current revision of the manual and the part must be rejected. Contact IAE for additional information concerning FAA approved repair date.

The practices and processes referred to in the procedure by the TASK numbers are in the SPM.

References

Refer to the SPM for data on these items:

Definition of Damages, 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 the 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 72-32-86-220-089 Examine the Rear Fairing Assembly (01-100) for Chips

    1. Refer to Figure.

      2. Examine the surface of parent material of the fairing.

        1. Chipped.

          1. Not more than 0.0078 in. (0.20 mm) in depth if chipped area is within 0.019 in. (0.50 mm) in width and 0.11 in. (3.0 mm) in length

          1. Accept

          2. More than in Step

          1. Reject

    2. SUBTASK 72-32-86-220-061 Examine the Rear Fairing Assembly (01-100) Outer Surface

    1. Refer to Figure.

      2. Examine the outer surface at location 1.

        1. Dented.

          1. Not more than 0.02 in. (0.50 mm) in depth

          1. Accept

          2. More than in Step

          1. Reject

        2. Nicked and gouged.

          1. Up to 0.02 in. (0.50 mm) in depth

          1. Accept

          2. More than in Step

          1. Reject

        3. Delaminated

        1. Reject

    3. SUBTASK 72-32-86-220-088 Examine the Rear Fairing Assembly (01-100) Trailing Edge

    1. Refer to Figure.

      2. Examine the trailing edge at location 6.

        1. Gouged or chipped

        1. Repair VRS1938, TASK 72-32-86-300-006 (REPAIR-006)

        2. Delaminated

        1. Reject

    4. SUBTASK 72-32-86-220-062 Examine the Rear Fairing Assembly (01-100) Front Outer Surface

    1. Refer to Figure and Figure.

      2. Examine the front outer surface at location 2.

        1. Galled.

        1. Contact area of FEGV rubber seal at seal surface.

          2. Not more than 0.01 in. (0.25 mm) in depth

          1. Accept

          3. More than in Step

          1. Reject

        2. Nicked or dented seal surface.

          1. Not more than 0.020 in. (0.50 mm)

          1. Accept

        3. Cracked, missing material or delaminated.

          1. If the damage is within the following limits Step to Step

          1. Repair VRS1939, TASK 72-32-86-300-007 (REPAIR-007)

        2. Not more than 5 damaged areas.

        3. NOTE

          If missing material or delaminated area is over seal surface, reject it.

          For cracks: Not more than 1.60 in. (40.8 mm) in axial length from end of seal surface and not more than 5.08 in. (129.2 mm) in circumferential length.

        4. For missing material or delaminated: Not more than 0.40 in. (10.2 mm) in circumferential length within seal surface.

        5. The circumferential distance between each damaged area is not less than 6.15 in. (156.0 mm).

          6. More than in Step

          1. Reject

    5. SUBTASK 72-32-86-220-063 Examine the Rear Fairing Assembly (01-100) Diameter

    1. Refer to Figure.

      2. Examine the diameter at location 3.

        1. Worn and galled.

          1. If the diameter is between 39.764 and 39.789 in. (1010.00 and 1010.66 mm)

          1. Accept

          2. More than in Step

          1. Repair VRS1983, TASK 72-32-86-300-009 (REPAIR-009)

    6. SUBTASK 72-32-86-220-064 Examine the Rear Fairing Assembly (01-100) Dimple Washer

    1. Refer to Figure.

    2. Examine the dimple washer at location 4.

      3. Missing or loose

      1. Repair VRS1784, TASK 72-32-86-300-003 (REPAIR-003)

    7. SUBTASK 72-32-86-220-079 Examine the Rear Fairing Assembly (01-100) Pad

    1. Refer to Figure.

      2. NOTE

        It is recommended that all pads on the rear fairing assembly are examined prior to any repair.

        Examine the pad at Location 5.

        1. Chipped or disbonded.

          1. Area A.

          1. Accept.

          2. Area B.

          1. Repair, VRS1425 TASK 72-32-86-300-005 (REPAIR-005) or Repair, VRS1983 TASK 72-32-86-300-009 (REPAIR-009).

        2. Delaminated at Area A or Area B.

        1. Repair, VRS1425 TASK 72-32-86-300-005 (REPAIR-005) or Repair, VRS1983 TASK 72-32-86-300-009 (REPAIR-009).

        3. Cracked at Area A or Area B.

          1. One crack not starting at the edge of the bolt hole.

          1. Repair, VRS1425 TASK 72-32-86-300-005 (REPAIR-005) or Repair, VRS1982 TASK 72-32-86-300-008 (REPAIR-008).

          2. Multiple cracks not starting at the edge of the bolt hole.

          1. Repair, VRS1425 TASK 72-32-86-300-005 (REPAIR-005) or Repair, VRS1982 TASK 72-32-86-300-008 (REPAIR-008).

          3. One crack starting at the edge of the bolt hole.

          1. Repair, VRS1982 TASK 72-32-86-300-008 (REPAIR-008).

        4. Other than Step, Step and/or Step.

        1. Repair, VRS1983 TASK 72-32-86-300-009 (REPAIR-009).

        5. Missing at Area A and/or Area B.

        1. Repair, VRS1983 TASK 72-32-86-300-009 (REPAIR-009).

    8. Figure: Locations On The Rear Fairing Assembly

    Locations On The Rear Fairing Assembly

    Figure: Repairable Limits of Location 2 for Crack and Missing Material

    Repairable Limits of Location 2 for Crack and Missing Material

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Revised the inspection procedure. (00VJ813E)