TASK 72-50-53-200-101 Strut Tube - Examine, Inspection-001

DMC:V2500-A0-72-50-5331-00A-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 72-50-53-200-101 Strut Tube - Examine, Inspection-001

Effectivity

FIG/ITEM

PART NO.

21-200

2A2165

General

This TASK gives the procedure for the inspection of the intermediate strut tube. For other parts of the exhaust case and fittings, refer to Inspection-000 TASK 72-50-53-200-100.

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 SPM TASK 70-20-00-200-501.

All the parts must be cleaned before any part is examined. Refer to 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.

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.

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 72-50-53-230-063-001 Examine the Intermediate Strut Tube (21-200) for Cracks

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

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

        1. Intermediate strut tube, Refer to SPM TASK 70-23-01-230-501.

          1. Cracked

          1. Reject

    2. SUBTASK 72-50-53-230-063-002 Examine the Intermediate Strut Tube (21-200) for Cracks

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

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

        1. Intermediate strut tube, Refer to SPM TASK 70-23-02-230-501.

          1. Cracked

          1. Reject

    3. SUBTASK 72-50-53-220-110 Examine the Intermediate Strut Tube (21-200) for Damage on the Threads

    1. Refer to Figure.

      2. Examine the tube thread at location 1 for damage.

        1. If there is no high metal and the tube thread turns into the mating part freely.

        1. Accept

        2. Other than Step.

        1. Repair, VRS3253 (Repair - 039) TASK 72-50-53-300-039.

    4. SUBTASK 72-50-53-220-111 Examine the Intermediate Strut Tube (21-200) for Nicks and Scratches

    1. Refer to Figure.

      2. Examine the tube on all surfaces for nicks and scratches.

        1. Up to 0.010 in. (0.254 mm) in depth with no high metal at location 2

        1. Accept

        2. Other than Step.

        1. Repair, VRS3253 (Repair - 039) TASK 72-50-53-300-039.

    5. SUBTASK 72-50-53-220-112 Examine the Intermediate Strut Tube (21-200) for the Outside Diameter

    1. Refer to Figure.

      2. Examine the tube at location 2 for the outside diameter.

        1. If the OD is 0.4338 - 0.4342 in. (11.0186 - 11.0286 mm).

        1. Accept

        2. Other than Step.

        1. Repair, VRS3254 TASK 72-50-53-300-040 (72-50-53, REPAIR-040, Page 901)**

    6. Figure: Intermediate strut tube inspection locations

    Intermediate strut tube inspection locations

Requirements After Job Completion

Follow-On Conditions

NONE