TASK 72-41-32-200-001-B00 HPC Inlet Variable Stator Vane - Examine, Inspection-001

DMC:V2500-A5-72-41-3201-00B-300A-C|Issue No:005.00|Issue Date:2019-08-01

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

V2500-A5

Common Information

TASK 72-41-32-200-001-B00 HPC Inlet Variable Stator Vane - Examine, Inspection-001

Effectivity

FIG/ITEM

PART NO.

01-500

6B1269

01-600

6B1270

General

This TASK gives the procedure for the inspection of the variable inlet guide vanes.

Nicks and dents 0.005 in. (0.13 mm) or less are acceptable without limit to the airfoil and gas washed surfaces of the platforms.

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 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 those parts which must have a crack test is given in Step. Do the crack 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 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 numbers are in SPM.

References

Refer to SPM for data on these items:

Cleaning Policy and Methods, SPM TASK 70-10-00-100-501.

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NONE

Consumables, Materials and Expendables

NONE

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-41-32-230-091 Examine the Variable Inlet Guide Vanes for Cracks

    1. Clean the parts. Refer to TASK 72-41-32-100-000 (CLEANING-000).

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

        PART IDENT

        TASK/SUBTASK

        Variable Inlet Guide Vanes

        1. Cracked.

        1. Reject.

    2. SUBTASK 72-41-32-220-188 Examine the Variable Inlet Guide Vane Airfoils at Location 1

    1. Refer to Figure.

      2. Nicked.

        1. Not more than 0.005 in. (0.13 mm) in depth.

        1. Accept.

        2. More than Step.

        1. Reject.

      3. Dents.

        1. Not more than 0.005 in. (0.13 mm) in depth.

        1. Accept.

        2. More than Step.

        1. Reject.

      4. Scratched.

        1. Not more than 0.005 in. (0.13 mm) in depth.

        1. Repair, VRS6033 TASK 72-41-32-300-001 (REPAIR-001).

    3. SUBTASK 72-41-32-220-189 Examine the Variable Inlet Guide Vanes Surfaces at Locations 2 and 4

    1. Refer to Figure.

      2. Scored/Scratched.

        1. Not more than 0.005 in. (0.13 mm) in depth.

        1. Accept.

        2. More than in Step.

        1. Reject.

      3. Wear.

      1. Reject.

    4. SUBTASK 72-41-32-220-190 Examine the Variable Inlet Guide Vanes Leading and Trailing Edges at Locations 5 and 6

    1. Refer to Figure.

      2. Nicked.

        1. Not more than 0.005 in. (0.13 mm) in depth.

        1. Accept.

        2. More than in Step.

        1. Reject.

      3. Dents.

        1. Not more than 0.005 in. (0.13 mm) in depth.

        1. Accept.

        2. More than in Step.

        1. Reject.

      4. Scored/Scratched.

        1. Not more than 0.005 in. (0.13 mm) in depth

        1. Repair VRS6033 TASK 72-41-32-300-001 (REPAIR-001).

    5. SUBTASK 72-41-32-220-191 Examine the Variable Inlet Guide Vanes Airfoil Surface Finish at Location 1

    1. Refer to Figure.

      2. Measure the surface finish of the vanes. Use 10 percent of the vanes that have been removed.

        1. Roughness of 10 microinches (0.25 micrometers) or less.

        1. Accept.

        2. Roughness more than in Step.

        1. Repair, VRS6075 TASK 72-41-32-300-002 (REPAIR-002).

    6. SUBTASK 72-41-32-220-192 Examine the Variable Inlet Guide Vanes Spindle at Location 7

    1. Refer to Figure.

      2. Scored/Scratched.

        1. Not more than 0.005 in. (0.13 mm) in depth.

        1. Accept.

        2. More than in Step.

        1. Repair, VRS9128 TASK 72-41-32-300-021 (REPAIR-021).

      3. Wear.

        1. If the diameter of the spindle is not less than 0.5470 in. (13.894 mm).

        1. Accept.

        2. If the diameter of the spindle is less than 0.5470 in. (13.894 mm).

        1. Repair, VRS9128 TASK 72-41-32-300-021 (REPAIR-021).

    7. SUBTASK 72-41-32-220-193 Examine the Variable Inlet Guide Vanes Spindle Flat at Location 8

    1. Refer to Figure.

      2. Burred edges.

      1. Reject.

      3. Scored.

      1. Reject.

    8. SUBTASK 72-41-32-220-194 Examine the Variable Inlet Guide Vanes Wire Thread Insert at Location 9

    1. Refer to Figure.

      2. Damaged threads.

      1. Reject.

    9. SUBTASK 72-41-32-220-195 Examine the Variable Inlet Guide Vanes Inner Pivot Spindle at Location 1205

    1. Refer to Figure.

      2. Scored/Scratched.

        1. Not more than 0.005 in. (0.13 mm) in depth.

        1. Accept.

        2. More than in Step.

        1. Repair, VRS9128 TASK 72-41-32-300-021 (REPAIR-021).

      3. Wear.

        1. If the diameter of the spindle is not less than 0.2700 in. (6.858 mm).

        1. Accept.

        2. If the diameter of the spindle is less than 0.2700 in. (6.858 mm).

        1. Repair, VRS9128 TASK 72-41-32-300-021 (REPAIR-021).

    10. SUBTASK 72-41-32-220-196 Examine the Variable Inlet Guide Vanes Annulus Surfaces at Locations 10 and 11

    1. Refer to Figure.

      2. Surface finish.

        1. Roughness not more than 16 micro-inches (0.40 micrometers).

        1. Accept.

        2. More than in Step.

        1. Reject.

    11. SUBTASK 72-41-32-220-231 Examine the Stage 3 Variable Inlet Guide Vanes Surface at Location 13 (01-500) and (01-600 Pre SBE 72-0571 only)

    1. Refer to Figure.

      2. Examine the engraved identity markings.

        1. Identity markings not encroaching into the fillet radius.

        1. Accept.

        2. Other than Step.

        1. Reject.

    12. Figure: Variable Inlet Guide Vane - Inspection Locations

    Variable Inlet Guide Vane - Inspection Locations

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Revised steps. (17VG142)