TASK 72-32-82-200-002-C00 LPC Stage 2 Blade - Examine, Inspection-002

DMC:V2500-A0-72-32-8220-00C-300A-C|Issue No:004.00|Issue Date:2021-02-01

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 72-32-82-200-002-C00 LPC Stage 2 Blade - Examine, Inspection-002

Effectivity

FIG/ITEM

PART NO.

02-250

5R0091

General

This TASK gives the procedure for the inspection of the LP compressor stage 2.0 blades.

The policy that is necessary for inspection is given in SPM TASK 70-20-00-200-501.

All parts must be cleaned before any part is examined. Refer to SPM TASK 70-11-03-300-503.

All 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 test before the part is visually examined.

Do not discard any part until you are sure there are no repair available. Refer to the instruction 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 could be shown to be necessary at a later date.

All the parts must be examined to make sure that all repairs have been completed satisfactorily.

The practices and processes referred to in the procedure by the TASK numbers are in SPM.

Reference

Refer to SPM for data on these items.

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

Inspection of Parts, SPM TASK 70-20-00-200-501.

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

Method of Testing for Crack Indications.

Chemical Process.

Surface Protection.

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NameManufacturerPart Number / IdentificationQuantityRemark
Fluorescent Penetrant Inspection EquipmentLOCALFluorescent penetrant inspection equipment
Standard cleaning equipmentLOCALStandard cleaning equipment

Consumables, Materials and Expendables

NONE

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-32-82-230-061 Examine the LP Compressor Stage 2.0 Blade (02-250) for Cracks

    1. NOTE

      For the method to clean the part, refer to SPM TASK 70-11-03-300-503.

      Clean the parts. Refer to TASK 72-32-82-100-000 (CLEANING-000).

      2. Do the test for cracks on the parts that are given below. Use the applicable penetrant procedure.

        PART IDENT

        TASK/SUBTASK

        LP compressor stage 2.0 blades

        1. Cracked.

        1. Reject.

    2. SUBTASK 72-32-82-220-091 Examine the LP Compressor Stage 2.0 Blade (02-250) Airfoil

    1. Refer to Figure.

      2. Examine the tip at Location 2.

        1. Rounded, bent or eroded appearance on concave side tip.

        1. Reject.

        2. Blued or burn crater on airfoil tip.

        1. Reject.

        3. Nicked, dented, and scratched.

          1. Less than 0.002 in. (0.05 mm) in depth.

          1. Accept.

          2. More than in Step.

          1. Reject.

      3. Examine the leading and trailing edges at Location 1.

        1. Nicked and Dented.

        1. Repair, VRS1865 TASK 72-32-82-300-012 (REPAIR-012).

        2. Erosion.

        1. Repair, VRS1865 TASK 72-32-82-300-012 (REPAIR-012).

      4. Examine the concave and convex airfoil surfaces at Location 3.

        1. Nicked, dented, and scratched.

          1. Less than 0.002 in. (0.05 mm) in depth.

          1. Accept.

          2. More than in Step.

          1. Repair, VRS1865 TASK 72-32-82-300-012 (REPAIR-012).

    3. SUBTASK 72-32-82-220-092 Examine the LP Compressor Stage 2.0 Blade (02-250) Platform

    1. Refer to Figure.

      2. Examine the platform at Location 7.

        1. Nicked and dented.

        1. Repair, VRS1865 TASK 72-32-82-300-012 (REPAIR-012).

      3. Examine the front and rear faces at Location 4.

        1. Nicked and dented.

        1. Repair, VRS1865 TASK 72-32-82-300-012 (REPAIR-012).

      4. Examine the platform edge at Location 8.

        1. Galled.

          1. Less than 0.005 in. (0.12 mm) in depth.

          1. Accept.

          2. More than in Step.

          1. Reject.

    4. SUBTASK 72-32-82-220-093 Examine the LP Compressor Stage 2.0 Blade (02-250) Dovetail

    1. Refer to Figure and Figure.

      2. Examine the front and rear faces at Location 5 and side face at Location 9.

        1. Nicked and dented.

        1. Repair, VRS1865 TASK 72-32-82-300-012 (REPAIR-012).

      3. Examine the dovetail contact area at Location 10.

        1. Fretted.

          1. Less than 0.001 in. (0.0254 mm) in depth.

          1. Accept.

          2. Less than 0.002 in. (0.05 mm) in depth.

          1. Repair, VRS1377 TASK 72-32-82-300-004 (REPAIR-004).

        2. Galled.

        1. Reject.

        3. Nicks, dents, and scratches.

        1. Reject.

    5. SUBTASK 72-32-82-220-094 Examine the LP Compressor Stage 2.0 Blade (02-250) Groove

    1. Refer to Figure.

      2. Examine the groove at Location 11.

        1. Worn, dented, and scratched on depth of groove.

          1. Less than 0.008 in. (0.20 mm) and less than one third of platform width.

          1. Accept.

          2. More than in Step.

          1. Reject.

        2. Worn, dented, and scratched on front and rear faces of groove.

          1. Less than 0.008 in. (0.20 mm) and less than one third of platform width.

          1. Accept.

          2. More than in Step.

          1. Reject.

    6. SUBTASK 72-32-82-220-095 Examine the LP Compressor Stage 2.0 Blade (02-250) Sealing Strip

    1. Refer to Figure.

      2. Examine the sealing strip.

        1. Deteriorated or unbonded.

        1. Repair, VRS1866 TASK 72-32-82-300-010 (REPAIR-010)

    7. SUBTASK 72-32-82-220-119 Examine the LP Compressor Stage 2.0 Blade (02-250) Fillet Root

    1. Refer to Figure.

      2. Examine the fillet root at Location 6.

        1. Nicked, dented, and scratched.

          1. Less than 0.002 in. (0.05 mm) in depth.

          1. Accept.

          2. More than in Step.

          1. Reject.

    8. SUBTASK 72-32-82-380-068 Apply the Dryfilm Coating

      1. Apply the dryfilm coating.

      1. Repair, VRS1387 TASK 72-32-82-300-002 (REPAIR-002).

    9. Figure: Locations on the LP Compressor stage 2.0 blades

    Locations on the LP Compressor stage 2.0 blades

    Figure: Locations on the LP Compressor stage 2.0 blade sealing strip

    Locations on the LP Compressor stage 2.0 blade sealing strip

    Figure: Dovetail contact area of the LP Compressor stage 2.0 blades

    Dovetail contact area of the LP Compressor stage 2.0 blades

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Revised the procedure to add inspection limits and figure. (16VJ806B)

Manufacturer Code:LOCAL
Enterprise Name:LOCALLY SUPPLIED
Manufacturer Code:LOCAL
Tool Number:Fluorescent penetrant inspection equipment
Tool Name:Fluorescent Penetrant Inspection Equipment
Manufacturer Code:LOCAL
Tool Number:Standard cleaning equipment
Tool Name:Standard cleaning equipment