TASK 72-32-82-200-002-B00 LPC Stage 2 Blade - Examine, Inspection-002

DMC:V2500-A0-72-32-8220-00B-300A-C|Issue No:002.00|Issue Date:2018-11-01

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

Post SBE 72-0017

Common Information

TASK 72-32-82-200-002-B00 LPC Stage 2 Blade - Examine, Inspection-002

Effectivity

FIG/ITEM

PART NO.

01-250

5R0043

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 70-11-14-300-503.

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 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 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.

References

Refer to SPM for data on these items

Definitions 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 Processes.

Surface Protection.

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NameManufacturerPart Number / IdentificationQuantityRemark
Fluorescent penetrant inspection equipmentLOCALFluorescent Penetrant Inspection Equipment
Standard cleaning equipmentLOCAL

Consumables, Materials and Expendables

NONE

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-32-82-230-056 Examine the LP Compressor Stage 2.0 Blades (01-250) for Cracks

    1. NOTE

      For the method to clean the part, refer to the SPM TASK 70-11-14-300-503.

      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 72-32-82-220-069 Examine the LP Compressor Stage 2.0 Blade (01-250) Airfoils

    1. Refer to Figure.

      2. Examine the tip at Location 2.

        1. Rounded, eroded appearance on concave side tip.

        1. Reject.

        2. Blued or burn cratering on aerofoil tip.

        1. Reject.

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

        1. Nicked and dented.

          1. Any nicks and dents except in Step.

          1. Repair, VRS1376 TASK 72-32-82-300-005 (REPAIR-005).

          2. Any nicks and dents in fillet root at location 6.

          1. Reject.

        2. Erosion.

          1. Any erosions.

          1. Repair, VRS1376 TASK 72-32-82-300-005 (REPAIR-005).

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

        1. Nicked and dented.

          1. Any nicks and dents except in Step.

          1. Repair, VRS1376 TASK 72-32-82-300-005 (REPAIR-005).

          2. Any nicks and dents in fillet root at location 6.

          1. Reject.

    3. SUBTASK 72-32-82-220-070 Examine the LP Compressor Stage 2.0 Blades (01-250) Platform

    1. Refer to Figure.

      2. Examine the platform at location 7.

        1. Nicked and dented.

          1. Any nicks and dents except in Step.

          1. Repair, VRS1376 TASK 72-32-82-300-005 (REPAIR-005)

          2. Any nicks and dents in fillet root at location 6.

          1. Reject.

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

        1. Nicked and dented.

          1. Any nicks and dents.

          1. Repair, VRS1376 TASK 72-32-82-300-005 (REPAIR-005).

      4. Examine the platform edge at location 8.

        1. Galled.

          1. Up to 0.005 in. (0.12 mm) in depth.

          1. Accept.

          2. More than in Step.

          1. Reject.

    4. SUBTASK 72-32-82-220-071 Examine the LP Compressor Stage 2.0 Blades (01-250) 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, VRS1376 TASK 72-32-82-300-005 (REPAIR-005).

      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 72-32-82-220-072 Examine the LP Compressor Stage 2.0 Blades (01-250) Groove

    1. Refer to Figure.

      2. Examine the groove at location 11.

        1. Worn on depth of groove.

          1. Less than 0.004 in. (0.10 mm) and less than one third of platform width.

          1. Accept.

          2. More than in Step

          1. Reject

        2. Worn on front and rear faces of groove.

          1. Less than 0.004 in. (0.10 mm) and less than one third of platform width.

          1. Accept.

          2. More than in Step.

          1. Reject.

    6. SUBTASK 72-32-82-220-073 Examine the LP Compressor Stage 2.0 Blades (01-250) Sealing Strip

    1. Refer to Figure.

      2. Examine the sealing strip.

        1. Deteriorated or unbonded.

        1. Repair, VRS1373 TASK 72-32-82-300-007 (REPAIR-007).

    7. SUBTASK 72-32-82-380-066 Apply the Dryfilm Coating

      1. Apply the dryfilm coating.

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

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

    Locations on the LP Compressor stage 2.0 blades

    Figure: Location of the LP Compressor stage 2.0 blades sealing strip

    Location of the LP Compressor stage 2.0 blades sealing strip

    Figure: Dovetail contact of the LP Compressor stage 2.0 blades

    Dovetail contact of the LP Compressor stage 2.0 blades

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Revised figure 2. (Editorial)

Manufacturer Code:LOCAL
Enterprise Name:LOCALLY SUPPLIED
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