TASK 72-41-31-200-011 HPC Stage 6 Blanking Plug - Examine, Inspection-011

DMC:V2500-A0-72-41-3126-01A-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 72-41-31-200-011 HPC Stage 6 Blanking Plug - Examine, Inspection-011

Effectivity

FIG/ITEM PART NO.

01-135

6A3986

01-135

6A7456

General

This TASK gives the procedure for the inspection of the stage 6 blanking plug.

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.

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 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 later 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, TASK 70-02-02-350-501

Inspection of Parts, 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 72-41-31-230-123 Examine the Stage 6 Blanking Plug for Cracks

    1. Clean the parts. Refer to TASK 72-41-31-100-000 (CLEANING-000).

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

        PART IDENT

        TASK/SUBTASK

        Stage 5 blanking plug

        1. Cracked

        1. Reject

    2. SUBTASK 72-41-31-220-227 Examine the Stage 6 Blanking Plug Faces at Locations 1 and 2

    1. Refer to Figure.

      2. Galled.

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

        1. Accept

        2. More than in step A.(1)

        1. Reject

      3. Scored.

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

        1. Accept

        2. More than in step B.(1)

        1. Reject

      4. Face 2 diameter.

        1. If the diameter is between 0.334 to 0.342in. (8.50 to 8.70 mm)

        1. Accept

        2. Less than in step C.(1)

        1. Reject

    3. SUBTASK 72-41-31-220-228 Examine the Stage 6 Blanking Plug Bolt Holes at Location 3

    1. Refer to Figure.

      2. Burred edges

      1. Repair, VRS6289, TASK 72-41-31-300-015 (REPAIR-015)

      3. Scored

      1. Repair, VRS6289, TASK 72-42-31-300-015 (REPAIR-015)

    4. SUBTASK 72-41-31-220-229 Examine the Stage 6 Blanking Plug Face at Location 4

    1. Refer to Figure.

      2. Nicked

      1. Repair, VRS6289, TASK 72-41-31-300-015 (REPAIR-015)

      3. Scratched

      1. Repair, VRS6289, TASK 72-41-31-300-015 (REPAIR-015)

    5. SUBTASK 72-41-31-220-230 Examine the Stage 6 Blanking Plug all Remaining Surfaces

      1. Nicked, dented and scratched.

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

        1. Accept

        2. More than in step A.(1)

        1. Repair, VRS6289, TASK 72-41-31-300-015 (REPAIR-015)

    6. Figure: Stage 6 blanking plug - inspection locations

    Stage 6 blanking plug - inspection locations

Requirements After Job Completion

Follow-On Conditions

NONE