TASK 72-41-00-200-002 HPC Stage 8, 9, And 11 Borescope Blanks - Examine, Inspection-002

DMC:V2500-A0-72-41-0011-00A-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 72-41-00-200-002 HPC Stage 8, 9, And 11 Borescope Blanks - Examine, Inspection-002

Effectivity

FIG/ITEM

PART NO.

02-100

6A3515

02-100

6A3507

02-100

6A4137

General

This TASK gives the procedure for the inspection of the stage 8, 9 and 11 borescope blank cover.

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

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 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

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

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 72-41-00-230-053 Examine the Stage 8, 9 and 11 Borescope Blank Covers for Cracks

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

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

        PART IDENT

        TASK/SUBTASK

        Stage 8, 9 and 11 borescope

        blank covers

        1. Cracked

        1. Reject

    2. SUBTASK 72-41-00-220-078 Examine the Stage 8, 9 and 11 Borescope Blank Covers Face at Location 1

    1. Refer to Figure or Figure or Figure.

      2. Galled or scored.

        1. Up to 0.010 in. (0.25 mm) in depth

        1. Accept

        2. More than in Step

        1. Reject

    3. SUBTASK 72-41-00-220-079 Examine the Stage 8, 9 and 11 Borescope Blank Covers Bolt Holes at Location 2

    1. Refer to Figure or Figure or Figure.

      2. Scored.

        1. Up to 0.010 in. (0.25 mm) in depth

        1. Accept

        2. More than in Step

        1. Reject

    4. SUBTASK 72-41-00-220-080 Examine the Stage 8, 9 and 11 Borescope Blank Covers Face at Location 3

    1. Refer to Figure or Figure or Figure.

      2. Galled.

        1. Up to 0.010 in. (0.25 mm) in depth

        1. Accept

        2. More than in Step

        1. Reject

      3. Scored.

        1. Up to 0.010 in. (0.25 mm) in depth

        1. Accept

        2. More than in Step

        1. Reject

    5. SUBTASK 72-41-00-220-081 Examine the Stage 8, 9 and 11 Borescope Blank Covers Plug at Location 4

    1. Refer to Figure or Figure or Figure.

      2. Loose

      1. Reject

      3. Wear

        1. If the diameter of the surface is between 0.412 to 0.413 in. (10.47 to 10.48 mm)

        1. Accept

        2. Less than in Step

        1. Reject

      4. Galled, scored or scratched

      1. Reject

      5. Bent

      1. Reject

    6. SUBTASK 72-41-00-220-107 Examine the Stage 8, 9 and 11 Borescope Blank Covers Remaining Surfaces

    1. Refer to Figure or Figure or Figure.

      2. Nicked, scratched, scored or burred.

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

        1. Accept

        2. More than in Step

        1. Reject

    7. SUBTASK 72-41-00-220-108 Examine the Stage 8, 9 and 11 Borescope Blank Covers Threads

    1. Refer to Figure or Figure or Figure.

      2. Stripped or cross threaded

      1. Reject

    8. Figure: 6A3515: Locations to examine the borescope blanks

    6A3515: Locations to examine the borescope blanks

    Figure: 6A3507: Locations to examine the borescope blanks

    6A3507: Locations to examine the borescope blanks

    Figure: 6A4137: Locations to examine the borescope blanks

    6A4137: Locations to examine the borescope blanks

Requirements After Job Completion

Follow-On Conditions

NONE