TASK 72-50-53-200-004 Bulkhead Tube Nipple - Examine, Inspection-004

DMC:V2500-A0-72-50-5322-00A-300A-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 72-50-53-200-004 Bulkhead Tube Nipple - Examine, Inspection-004

Effectivity

FIG/ITEM PART NO.

20-290

2A2175

Equipment and Material

Standard equipment - none

Consumable materials - none

Special tools - none

General

This TASK gives the procedure for the inspection of the bulkhead tube nipple. For other parts of the exhaust case and fittings, refer to TASK 72-50-53-200-000.

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 70-20-00-200-501.

All the parts must be cleaned before any part is examined. Refer to the SPM TASK 70-10-00-100-501.

The procedure for those parts which must have a crack test is given in SPM TASK 70-23-00-230-501. Do the test before the part is visually examined.

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 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 72-50-53-230-061-001 Examine the Bulkhead Tube Nipple (20-290) for Cracks

    1. Clean the part. Refer to TASK 72-50-53-100-000.

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

        PART IDENT TASK/SUBTASK

        Bulkhead tube nipple

        1. Cracked

        1. Reject

    2. SUBTASK 72-50-53-230-061-002 Examine the Bulkhead Tube Nipple (20-290) for Cracks

    1. Clean the part. Refer to TASK 72-50-53-100-000.

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

        PART IDENT TASK/SUBTASK

        Bulkhead tube nipple

        1. Cracked

        1. Reject

    3. SUBTASK 72-50-53-220-101 Examine the Bulkhead Tube Nipple (20-290) for Damage on the Threads

    1. Refer to: Figure

      2. Examine the tube nipple at location 1 for damage on the threads.

        1. If there is no high metal and the nipple turns into the mating part with no binding

        1. Accept

        2. Other than (1)

        1. Reject

    4. SUBTASK 72-50-53-220-102 Examine the Bulkhead Tube Nipple (20-290) for the Damage on the Conical Seats

    1. Refer to: Figure

      2. Examine the tube nipple at location 2 for the damage on the conical seats.

        1. If the conical seats are smooth with a complete line of sealing and no high metal

        1. Accept

        2. Other than (1)

        1. Reject

    5. SUBTASK 72-50-53-220-239 Examine the Bulkhead Tube Nipple (20-290) for Coke or Carbon in the Internal Bore

    1. Refer to: Figure

      2. Examine the bulkhead tube nipple for coke or carbon in the internal bore at location 3.

        1. No coke, blockage or loose particles

        1. Accept

        2. Coking or blockage

        1. Clean. Refer to TASK 72-50-53-100-005

    6. Figure: Bulkhead tube nipple inspection locations

    Bulkhead tube nipple inspection locations

Requirements After Job Completion

Follow-On Conditions

NONE