TASK 72-38-25-200-001-B00 Bifurcation Panel - Examine, Inspection-001 - SBE 79-0087 And SBE 79-0088

DMC:V2500-A0-72-38-2501-00B-310A-C|Issue No:002.00|Issue Date:2014-11-01

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 72-38-25-200-001-B00 Bifurcation Panel - Examine, Inspection-001 - SBE 79-0087 And SBE 79-0088

Effectivity

FIG/ITEM

PART NO.

01-300

6A7930

General

This TASK gives the procedure for the inspection of the bifurcation panel. For the other bifurcation panel parts refer to TASK 72-38-25-200-000.

Fig/item numbers in parentheses in the procedure agree with those used in the EIPC. Only the primary Fig/item numbers are used. For the service bulletin alpha variants refer to the EIPC.

The policy that is necessary for Inspection/Check is given in the SPM TASK 70-20-01-200-501.

All the parts must be cleaned before they are examined. Refer to TASK 72-38-25-100-000.

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 a 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 subsequent date.

All parts must be examined to make sure that all the repairs are completed satisfactorily.

Practices and processes referred to by the TASK/SUBTASK number in the procedure, 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

Some data on these items is 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 72-38-25-220-051 Examine the Bifurcation Panel (01-300) for Cracks

      1. Examine all the surface for cracks.

        1. Cracked

        1. Reject

    2. SUBTASK 72-38-25-220-052 Examine the Surface of the Bifurcation Panel (01-300)

    1. Refer to Figure.

      2. Examine all the surface.

        1. Nicked.

          1. Nicked to a depth of 0.002 in. (0.05 mm)

          1. Accept

          2. More than in Step

          1. Repair, VRS6373, TASK 72-38-25-300-001 (REPAIR-001)

        2. Dented.

          1. Dented to a depth of 0.150 in. (3.80 mm) with a large surface area

          1. Accept

          2. More than in Step

          1. Reject

        3. Scratched.

          1. Scratched to a depth of 0.002 in. (0.05 mm)

          1. Accept

          2. More than in Step

          1. Refer to VRS6373, TASK 72-38-25-300-001 (REPAIR-001)

    3. SUBTASK 72-38-25-220-053 Examine the Bifurcation Panel Fireseals

    1. Refer to Figure.

      2. Examine the "U" Seal.

        1. Torn, split or cut through to fibrous layer.

        1. Refer to VRS9669, TASK 72-38-25-300-002 (Repair-002).

        2. Missing sealant at location 2.

        1. Refer to VRS9669, TASK 72-38-25-300-002 (Repair-002).

        3. Scuffed surface, nicks or cuts that do not penetrate through to the fibrous layer.

        1. Accept

        4. WARNING

          BE CAREFUL WHEN YOU USE COMPRESSED AIR. PUT ON PROTECTIVE CLOTHING AND GOGGLES. MAKE SURE THAT ALL PERSONS ARE AT A SAFE DISTANCE.

          Holes in fireseals plugged.

        1. Clear with dry compressed air.

      3. Examine the side seals.

        1. Torn, split or cut through to fibrous layer.

        1. Refer to VRS9536, TASK 72-38-25-300-003 (Repair-003).

        2. Missing sealant at location 2.

        1. Refer to VRS9536, TASK 72-38-25-300-003 (Repair-003).

        3. Scuffed surface, nicks or cuts that do not penetrate through to the fibrous layer.

        1. Accept

        4. WARNING

          BE CAREFUL WHEN YOU USE COMPRESSED AIR. PUT ON PROTECTIVE CLOTHING AND GOGGLES. MAKE SURE THAT ALL PERSONS ARE AT A SAFE DISTANCE.

          Holes in fireseals plugged.

        1. Clear with dry compressed air.

    4. Figure: Inspection of the Bifurcation Panel

    Inspection of the Bifurcation Panel

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Deleted figure 2 and revised the procedure. (EA14VC223)