TASK 72-41-21-200-020 HPC Stage 10 Case - Examine The HPC Stage 10 Case Sealing Ring, Inspection-020

DMC:V2500-A0-72-41-2110-02A-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 72-41-21-200-020 HPC Stage 10 Case - Examine The HPC Stage 10 Case Sealing Ring, Inspection-020

Effectivity

FIG/ITEM

PART NO.

04-406

6A5703

04-406

6A1252

04-406

6A4184

General

This TASK gives the procedure for the inspection of the stage 10 sealing ring.

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

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.

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 72-41-21-230-202 Examine the Stage 10 Sealing Ring for Cracks

    1. Clean the parts. Refer to TASK 72-41-21-100-000 (CLEANING-000).

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

        PART IDENT TASK/SUBTASK

        Stage 10 sealing ring

        TASK

        TASK 70-23-02-230-501

        1. Cracked

        1. Reject

    2. SUBTASK 72-41-21-220-497 Examine the Stage 10 Sealing Ring Faces at Locations 1,2 and 1106

    1. Refer to Figure.

      2. Scored.

        1. Up to 0.002 in. (0.5 mm) in depth

        1. Accept

        2. More than in Step

        1. Reject

        3. Chipped

        1. Reject

      3. Location 1.

        1. If the diameter is between 22.7480 and 22.7716 in. (577.80 and 578.40 mm)

        1. Accept

        2. More than 22.7716 in. (578.40 mm)

        1. Reject

      4. Location 2.

        1. If the width is between 0.1555 and 0.1594 in. (3.95 and 4.05 mm)

        1. Accept

        2. Less than 0.1555 in. (3.95 mm)

        1. Reject

      5. Location 1106.

        1. If the diameter is between 23.2374 and 23.2393 in. (590.23 and 590.28 mm)

        1. Accept

        2. Less than 23.2374 in. (590.23 mm)

        1. Reject

    3. SUBTASK 72-41-21-220-498 Examine the Stage 10 Sealing Ring Remaining Surfaces

      1. Nicked, galled or scored.

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

        1. Accept

        2. More than Step

        1. Reject

    4. Figure: Stage 10 sealing ring - inspection locations

    Stage 10 sealing ring - inspection locations

Requirements After Job Completion

Follow-On Conditions

NONE