TASK 72-41-23-200-002-B00 HPC Cross Key Segment - Examine, Inspection-002

DMC:V2500-A0-72-41-2303-00B-300A-C|Issue No:003.00|Issue Date:2015-05-01

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 72-41-23-200-002-B00 HPC Cross Key Segment - Examine, Inspection-002

Effectivity

FIG/ITEM PART NO.

02-220

6A5685

General

This TASK gives the procedure for the inspection of the cross key location segments.

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.

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.

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 procedure for the parts which must have a crack test is given in SUBTASK 72-41-23-230-052. Do the crack test before a 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 can be shown to be necessary at a subsequent date.

All the 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 number are in the SPM.

References

Refer to the SPM for data on these items.

Definition of Damage, SPM TASK 70-02-02-350-501 .

Record and Control of the Lives of Parts, SPM TASK 70-05-00-220-501 .

Inspection of Parts, SPM TASK 70-02-01-200-501.

Some data on these items is contained in this TASK. For more data on these items refer to the SPM.

Methods 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 72-41-23-230-077 Examine the Cross Key Location Segments for Cracks

    1. Clean the parts. Refer to TASK 72-41-23-100-000 (CLEANING-000).

      2. Do the test for cracks on the part that is given below.

        PART IDENT

        TASK/SUBTASK

        Cross key location segment

        1. Cracked

        1. Reject

    2. SUBTASK 72-41-23-220-130 Examine the Cross Key Location Segments Face at Location 7

    1. Refer to Figure.

      2. Galled.

        1. Up to 0.002 in. (0.05 mm) in depth

        1. Accept

        2. More than in Step

        1. Reject

      3. Scored.

        1. Up to 0.002 in. (0.05 mm) in depth

        1. Accept

        2. More than in Step

        1. Reject

    3. SUBTASK 72-41-23-220-131 Examine the Cross Key Location Segments Faces at Locations 1, 2 and 3

    1. Refer to Figure.

      2. Scored

      1. Reject

      3. Chipped

      1. Reject

        2. Measure the gap between the faces 1 and 3.

          1. If the gap is between 0.787 to 0.788 in. (20.00 to 20.03 mm)

          1. Accept

          2. More than in Step

          1. Reject

    4. SUBTASK 72-41-23-220-132 Examine the Cross Key Location Segments Bolt Holes and Slots at Locations 4, 5 and 6

    1. Refer to Figure.

      2. Burred

      1. Reject

      3. Scored

      1. Reject

    5. SUBTASK 72-41-23-220-133 Examine the Cross Key Location Segments for Corrosion Pitted

      1. Corrosion pitted

      1. Reject

    6. SUBTASK 72-41-23-220-134 Examine the Cross Key Location Segments all Remaining Surfaces

      1. Nicked, dented and scratched.

        1. Up to 0.002 in. (0.05 mm) in depth

        1. Accept

        2. More than in Step

        1. Reject

    7. Figure: Cross key location segments - inspection locations

    Cross key location segments - inspection locations

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Revised format. (editorial change)