TASK 72-41-15-200-011-A00 HPC Rotor Blades Remaining Parts - Examine, Inspection-011

DMC:V2500-A0-72-41-1520-00A-300A-C|Issue No:002.00|Issue Date:2018-08-01

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

All

Common Information

TASK 72-41-15-200-011-A00 HPC Rotor Blades Remaining Parts - Examine, Inspection-011

Effectivity

FIG/ITEM

PART NO.

01-050

6A1028

01-070

6A3760

01-070

6A3597

01-195

UP10822

01-350

6A1033

01-650

6A1038

02-164

BLT5296

02-165

UP11012

02-264

BLT5295

02-265

UP11031

02-364

BLT5317

02-365

UP11032

02-464

BLT5317

02-465

UP11032

02-564

BLT5317

02-565

UP11032

02-664

BLT5317

02-665

UP11032

02-764

BLT5317

02-765

UP11032

General

This TASK gives the procedure for the inspection of the HP Compressor Rotor Blades remaining parts. Refer to TASK 72-41-15-200-000 for other remaining parts.

Fig/item numbers in parentheses in the procedure agree with those given 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. Refer to TASK 72-41-15-100-000.

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.

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 70-02-01-220-501.

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

Method of Testing for Crack Indications.

Chemical Processes.

Surface Protection.

NOTE

To identify the consumable materials, refer to the PCI.

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NONE

Consumables, Materials and Expendables

NameManufacturerPart Number / IdentificationQuantityRemark
CoMat 01-001 SOLVENT, DELETEDLOCALCoMat 01-001
CoMat 01-002 SOLVENT, DELETED.LOCALCoMat 01-002
CoMat 10-070 ANTI-SEIZE COMPOUNDLOCALCoMat 10-070

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-41-15-260-071 Examine the HP Compressor Stages 3 to 5 Rotor Blade Retaining Plates (01-050, 01-070, 01-350 and 01-650)

      1. Do the test for cracks on the parts that are given below.

        PART IDENT

        TASK/SUBTASK

        Stage 3 Retaining Plate

        Stage 4 Retaining Plate

        Stage 5 Retaining Plate

        1. Cracked.

        1. Reject.

      2. Distorted.

      1. Reject.

      3. Bent.

      1. Reject.

      4. Galled.

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

        1. Accept.

        2. More than in Step.

        1. Refer to VRS6299, TASK 72-41-15-300-047 (REPAIR-047).

      5. Worn.

        1. If the thickness of the retaining plate at the inner and outer locations is between 0.0925 to 0.0935 in. (2.350 to 2.375 mm).

        1. Accept.

        2. If the thickness of the retaining plate is less than in Step.

        1. Reject.

    2. SUBTASK 72-41-15-220-400 Examine the HP Compressor Stages 6 thru 12 Jacking Screw and Locking Nut Assemblies (02-164, 02-165, 02-264, 02-265, 02-364, 02-365, 02-464, 02-465, 02-564, 02-565, 02-664, 02-665, 02-764 and 02-765)

    1. Refer to Figure.

      2. Examine the locking nuts.

        1. Examine faces at locations 1 and 2.

          1. Galled.

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

            1. Accept.

            2. More than in Step.

            1. Reject.

          2. Worn.

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

            1. Accept.

            2. More than in Step.

            1. Reject.

        2. Examine the cheeks at locations 3 and 4.

          1. Galled.

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

            1. Accept.

            2. More than in Step.

            1. Reject.

        3. Examine the threads at location 5.

          1. Stripped.

          1. Reject.

          2. Crossed.

          1. Reject.

      3. Examine the jacking screws.

        1. Examine the hexagonal hole at location 6.

          1. Worn.

          1. Reject.

        2. Examine the threads at location 7.

          1. Stripped.

          1. Reject.

          2. Crossed.

          1. Reject.

    3. SUBTASK 72-41-15-220-404 Do a Locking Torque Check on the HP Compressor Stages 6 to 12 Jacking Screw and Locking Nut Assemblies (02-164, 02-165, 02-264, 02-265, 02-364, 02-365, 02-464, 02-465, 02-564, 02-565, 02-664, 02-665, 02-764 and 02-765)

      1. CAUTION

        WHEN YOU USE CoMat 01-001 SOLVENT, DELETED OR CoMat 01-002 SOLVENT, DELETED. YOU MUST USE THE CORRECT PROTECTIVE CLOTHING. DO NOT GET THE SOLVENT ON YOUR SKIN OR IN YOUR EYES. YOU MUST NOT SMOKE WHEN YOU USE THE SOLVENT AS THE VAPOUR CHANGES AND BECOMES TOXIC.

        Clean the assemblies.

      1. Use CoMat 01-001 SOLVENT, DELETED or CoMat 01-002 SOLVENT, DELETED. and a cloth to clean the threads of the jacking screw and locknut assemblies.

      2. Check the locking torque.

      1. Use a brush to apply CoMat 10-070 ANTI-SEIZE COMPOUND to the threads of the jacking screw and locknut assemblies.

        2. Assemble the jacking screw and locknut assemblies and check the locking torque. The locking torque must be between 2 lbfin and 11.5 lbfin (0.23 Nm and 1.24 Nm).

        1. Accept.

        3. Locking torque less than 2 lbfin (0.23 Nm).

        1. Reject.

    4. SUBTASK 72-41-15-220-405 Examine the Stage 3 Balance Plug (01-195)

      1. Examine the plug surface.

        1. Galled or fretted.

          1. Not more than 0.002 in. (0.05 mm) in depth.

          1. Accept.

          2. More than in Step.

          1. Reject.

        2. Burred, scored or scratched.

          1. Not more than 0.002 in. (0.05 mm) in depth, with no sharp edges.

          1. Accept.

          2. More than in Step.

          1. Reject.

        3. Worn.

          1. Diameter between 0.189 in. and 0.193 in. (4.80 mm and 4.90 mm).

          1. Accept.

          2. Diameter less than 0.189 in. (4.80 mm).

          1. Reject.

    5. Figure: Stages 6 thru 12 Locking Nuts - Inspection Locations

    Stages 6 thru 12 Locking Nuts - Inspection Locations

    Figure: Stages 6 thru 12 Jacking Screws - Inspection Locations

    Stages 6 thru 12 Jacking Screws - Inspection Locations

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Revised the procedure to correct the unit conversion error. (18VG031)

Manufacturer Code:LOCAL
Enterprise Name:LOCALLY SUPPLIED
Manufacturer Code:X111X
Supply Number:CoMat 01-001
Type:sp01
Supply Short Name:CoMat 01-001 SOLVENT, DELETED
Supply Name:CoMat 01-001 SOLVENT, DELETED
Specification Groups:
Doc NumberType
wiring harnesses. Where CoMat 01‐001 is specified to clean mechanical components, use one or more of the solvents that SPM TASK 70‐11‐26‐300‐503 specifies as applicable.DELETED. Where CoMat 01‐001 is specified to clean electrical contacts or wiring harnesses, use one or more of the solvents that SPM TASK 70‐11‐57‐110‐501 specifies to clean electrical contacts or
Suppliers:
ManufacturerRemarks
X111X
Manufacturer Code:X111X
Supply Number:CoMat 01-002
Type:sp01
Supply Short Name:CoMat 01-002 SOLVENT, DELETED.
Supply Name:CoMat 01-002 SOLVENT, DELETED.
Specification Groups:
Doc NumberType
wiring harnesses. Where CoMat 01‐002 is specified to clean mechanical components, use one or more of the solvents that SPM TASK 70‐11‐26‐300‐503 specifies as applicable.DELETED. Where CoMat 01‐002 is specified to clean electrical contacts or wiring harnesses, use one or more of the solvents that SPM TASK 70‐11‐57‐110‐501 specifies to clean electrical contacts or
Suppliers:
ManufacturerRemarks
X111X
Manufacturer Code:X222X
Supply Number:CoMat 10-070
Type:sp01
Supply Short Name:CoMat 10-070 ANTI-SEIZE COMPOUND
Supply Name:CoMat 10-070 ANTI-SEIZE COMPOUND
Specification Groups:
Doc NumberType
DELETED. USE COMAT 10-070A
Suppliers:
ManufacturerRemarks
X222X