TASK 72-41-21-300-082 HPC Heatshields - Replace Loose Or Damaged Rivets And/or A Damaged Plate On The Stage 10 Front Heatshield, Repair-082 (VRS6336)

DMC:V2500-A0-72-41-2140-03A-652A-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 72-41-21-300-082 HPC Heatshields - Replace Loose Or Damaged Rivets And/or A Damaged Plate On The Stage 10 Front Heatshield, Repair-082 (VRS6336)

Effectivity

FIG/ITEM PART NO.

04-500

6A3030

04-500

6A4263

Material of component

DESCRIPTION SYMBOL MATERIAL

HP Compressor Front Heatshield,

QRK

38 per cent Nickel,

Stage 10 (Assembly A)

14 per cent Cobalt,

1.5 per cent Titanium and

1 per cent Manganese

OR

QTX

Iron, 38 per cent Nickel,

14.5 per cent Cobalt,

1.5 per cent Niobium and

1.6 per cent Titanium

HP Compressor Front Heatshield,

TDZ

5 per cent Aluminum,

Stage 10 (Assembly B)

3 per cent Zirconium,

3 per cent Tin and

1 per cent Niobium

Plate

EBQ

11 per cent Chromium and

1 per cent Molybdenum

Rivet, solid

QBE )

Nimonic 75

or

QPK )

Nimonic 75

General

This Repair must only be done when the instruction to do so is given in 72-41-21 Inspection.

This Repair replaces loose or damaged rivets and/or a damaged plate, on the HP Compressor, stage 10, front heatshield.

When loose or damaged rivet(s) are to be replaced do SUBTASK 72-41-21-323-057.

When a damaged plate is to be replaced do SUBTASK 72-41-21-350-149.

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

Price and Availability

Refer to International Aero Engines.

Related Repairs

HP Compressor Front Heatshield, Stage 10 - Replace the Surface Protection, refer to TASK 72-41-21-300-083 (VRS6335).

NOTE

  1. Equivalent materials or equipment can be used.

  2. More equipment and materials necessary to do this Repair are in the SPM TASKS given below:

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NameManufacturerPart Number / IdentificationQuantityRemark
Chemical cleaning equipmentLOCALChemical cleaning equipment
Penetrant Crack Test EquipmentLOCALPenetrant crack test equipment
Vertical drilling machineLOCALVertical drilling machine
Toolmakers clampLOCALToolmakers clamp

or equivalent

Standard workshop equipmentLOCALStandard workshop equipment
Vibrating marking pencilLOCALVibrating marking pencil
Portablegrinding equipmentLOCALPortable grinding equipment

Consumables, Materials and Expendables

NONE

Spares

NameManufacturerPart Number / IdentificationQuantityRemark
Rivet, solid, universal head (Assy A and Assy B)AS162462
Rivet, solid, universal head (Assy A and Assy B)AS162872
Plate6A56671

(Assy A)

Plate6A56721

(Assy B)

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-41-21-110-133 Clean the Assembly

      1. Chemically clean.

      1. Refer to TASK 72-41-21-100-000. Use chemical cleaning equipment.

    2. SUBTASK 72-41-21-230-157 Do a crack test

      1. Do a penetrant crack test.

      1. Refer to TASK 72-41-21-200-000. Use penetrant crack test equipment.

    3. SUBTASK 72-41-21-323-057-A00 Remove Loose or Damaged Rivet(s), Assembly A

      NOTE

      The SUBTASKS which follow must only be done to replace loose or damaged rivet(s).

    1. Refer to Figure.

      2. Remove loose or damaged rivet(s).

      1. Use a vertical drilling machine.

    4. SUBTASK 72-41-21-323-057-B00 Remove Loose or Damaged Rivet(s), Assembly B

      NOTE

      The SUBTASKS which follow must only be done to replace loose or damaged rivet(s).

    1. Refer to Figure.

      2. Remove loose or damaged rivet(s).

      1. Use a vertical drilling machine.

    5. SUBTASK 72-41-21-220-392-A00 Examine the Rivet Hole(s), Assembly A

    1. Refer to Figure and Figure.

      2. Visually examine and measure the diameter of the rivet hole(s).

      1. Mark damaged rivet hole(s).

    6. SUBTASK 72-41-21-220-392-B00 Examine the Rivet Hole(s), Assembly B

    1. Refer to Figure and Figure.

      2. Visually examine and measure the diameter of the rivet hole(s).

      1. Mark damaged rivet hole(s).

    7. SUBTASK 72-41-21-323-058-A00 Drill the Plate and Rivet Hole(s), as necessary, Assembly A

      NOTE

      Only do this SUBTASK if the larger rivet(s) are to be installed.

    1. Refer to Figure and Figure.

      2. Drill the plate and the damaged rivet hole(s) to suit the larger rivet(s), as necessary.

      1. If the two rivets have been removed, safety the plate to the heatshield with a toolmakers clamp or equivalent.

      2. Use a vertical drilling machine.

      3. Remove sharp edges.

      1. Use standard workshop equipment.

    8. SUBTASK 72-41-21-323-058-B00 Drill the Plate and Rivet Hole(s), as necessary, Assembly B

      NOTE

      Only do this SUBTASK if the larger rivet(s) are to be installed.

    1. Refer to Figure and Figure.

      2. Drill the plate and the damaged rivet hole(s) to suit the larger rivet(s), as necessary.

      1. If the two rivets have been removed safety the plate to the heatshield with a toolmakers clamp or equivalent.

      2. Use a vertical drilling machine.

      3. Remove sharp edges.

      1. Use standard workshop equipment.

    9. SUBTASK 72-41-21-110-134 Chemically clean

      1. Chemically clean the plate and around the rivet hole(s).

      1. Refer to the SPM TASK 70-11-26-300-503.

    10. SUBTASK 72-41-21-230-158 Do a Crack Test

      1. Do a local penetrant crack test on the plate and around the rivet hole(s).

      1. Refer to the SPM TASK 70-23-05-230-501.

      2. Cracks are not permitted.

    11. SUBTASK 72-41-21-350-149-A00 Install the Rivet(s), Assembly A

    1. Refer to Figure and Figure.

      2. Install the rivet(s) into the heatshield and plate.

      1. Use AS16246 , 2 off, 04-508 and/or AS16287 , 2 off, 04-509 as necessary.

      2. Use standard workshop equipment.

    12. SUBTASK 72-41-21-350-149-B00 Install the Rivet(s), Assembly B

    1. Refer to Figure and Figure.

      2. Install the rivet(s) into the heatshield and plate.

      1. Use AS16246 , 2 off, 04-508 and/or AS16287 , 2 off, 04-509 as necessary.

      2. Use standard workshop equipment.

    13. SUBTASK 72-41-21-390-057-A00 Safety the Rivet(s) in Place, Assembly A

    1. Refer to Figure and Figure.

      2. Cold squeeze the rivet(s) in place.

      1. Refer to the SPM TASK 70-39-03-390-501.

      2. Use standard workshop equipment.

    14. SUBTASK 72-41-21-390-057-B00 Safety the Rivet(s) in Place, Assembly B

    1. Refer to Figure and Figure.

      2. Cold squeeze the rivet(s) in place.

      1. Refer to the SPM TASK 70-39-03-390-501.

      2. Use standard workshop equipment.

    15. SUBTASK 72-41-21-110-135 Chemically clean

      1. Chemically clean the rivet heads and plate.

      1. Refer to the SPM TASK 70-11-26-300-503.

    16. SUBTASK 72-41-21-230-159 Do a Crack Test

      1. Do a local penetrant crack test on the rivet heads and plate.

      1. Refer to the SPM TASK 70-23-05-230-501.

      2. Cracks are not permitted.

    17. SUBTASK 72-41-21-350-150 Identify the Repair

      1. Mark VRS6336/1 adjacent to the part number when loose or damaged rivet(s) is/are replaced.

      1. Refer to the SPM TASK 70-09-00-400-501, SUBTASK 70-09-00-400-001.

      2. Use vibro engraving equipment.

    18. SUBTASK 72-41-21-380-097 Apply the Surface Protection

      1. Apply the surface protection to the HP Compressor front heatshield, stage 10.

      1. Refer to VRS6335, TASK 72-41-21-300-083.

    19. SUBTASK 72-41-21-350-151-A00 Remove the Damaged Plate, Assembly A

      NOTE

      The SUBTASKS which follow must only be used to replace the damaged plate.

    1. Refer to Figure and Figure.

      2. Release the damaged plate.

      1. Position the heatshield with damaged plate side up.

      2. Grind-off the heads of the rivets.

      3. Use a portable grinding machine.

      3. Remove the rivets.

      1. Use standard workshop equipment.

    4. Discard the damaged plate.

    20. SUBTASK 72-41-21-350-151-B00 Remove the Damaged Plate, Assembly B

      NOTE

      The SUBTASKS which follow must only be used to replace a damaged plate.

    1. Refer to Figure and Figure.

      2. Release the damaged plate.

      1. Position the heatshield with damaged plate side up.

      2. Grind-off the heads of the rivets.

      3. Use a portable grinding machine.

      3. Remove the rivets.

      1. Use standard workshop equipment.

    4. Discard the damaged plate.

    21. SUBTASK 72-41-21-220-393-A00 Examine the Rivet Holes, Assembly A

    1. Refer to Figure and Figure.

      2. Visually examine and measure the diameter of the rivet holes.

      1. Mark damaged rivet hole(s).

    22. SUBTASK 72-41-21-220-393-B00 Examine the Rivet Holes, Assembly B

    1. Refer to Figure and Figure.

      2. Visually examine and measure the diameter of the rivet holes.

      1. Mark damaged rivet hole(s).

    23. SUBTASK 72-41-21-323-059-A00 Drill the Plate and Rivet Hole(s), Assembly A

    1. Refer to Figure and Figure.

      2. Safety the plate to the heatshield.

      1. Use 6A5667 , 1 off, 04-511 with a toolmakers clamp or equivalent.

      3. Drill the plate and the rivet hole(s).

      1. Position the heatshield with plate side down.

        NOTE

        Drill the rivet hole(s) to suit the larger rivet, if necessary.

      2. Use a vertical drilling machine.

      4. Remove sharp edges.

      1. Use standard workshop equipment.

    24. SUBTASK 72-41-21-323-059-B00 Drill the Plate and Rivet Holes, Assembly B

    1. Refer to Figure and Figure.

      2. Safety the plate to the heatshield.

      1. Use 6A5672 , 1 off, 04-512 with a toolmakers clamp or equivalent.

      3. Drill the plate and the rivet hole(s).

      1. Position the heatshield with plate side down.

        Use a vertical drilling machine.

        NOTE

        Drill the rivet hole(s) to suit the larger rivet, if necessary.

      4. Remove sharp edges.

      1. Use standard workshop equipment.

    25. SUBTASK 72-41-21-110-136 Chemically clean

      1. Chemically clean the plate and around the rivet holes.

      1. Refer to the SPM TASK 70-11-26-300-503.

    26. SUBTASK 72-41-21-230-160 Do a Crack Test

      1. Do a local penetrant crack test on the plate and around the rivet holes.

      1. Refer to the SPM TASK 70-23-05-230-501.

      2. Cracks are not permitted.

    27. SUBTASK 72-41-21-350-152-A00 Install the Rivets, Assembly A

    1. Refer to Figure and Figure.

      2. Install the rivets into the heatshield and plate.

      1. Use AS16246 , 2 off, 04-508 and/or AS16287 , 2 off, 04-509 as necessary.

      2. Use standard workshop equipment.

    28. SUBTASK 72-41-21-350-152-B00 Install the Rivets, Assembly B

    1. Refer to Figure and Figure.

      2. Install the rivets into the heatshield and plate.

      1. Use AS16246 , 2 off, 04-508 and/or AS16287 , 2 off, 04-509 as necessary.

      2. Use standard workshop equipment.

    29. SUBTASK 72-41-21-390-058-A00 Safety the Rivet(s) in Place, Assembly A

    1. Refer to Figure and Figure.

      2. Cold squeeze the rivet(s) in place.

      1. Refer to the SPM TASK 70-39-03-390-501.

      2. Use standard workshop equipment.

    30. SUBTASK 72-41-21-390-058-B00 Safety the Rivet(s) in Place, Assembly B

    1. Refer to Figure and Figure.

      2. Cold squeeze the rivet(s) in place.

      1. Refer to the SPM TASK 70-39-03-390-501.

      2. Use standard workshop equipment.

    31. SUBTASK 72-41-21-110-137 Chemically clean

      1. Chemically clean the rivet heads and plate.

      1. Refer to the SPM TASK 70-11-26-300-503.

    32. SUBTASK 72-41-21-230-161 Do a Crack Test

      1. Do a local penetrant crack test on the rivet heads and plate.

      1. Refer to the SPM TASK 70-23-05-230-501.

      2. Cracks are not permitted.

    33. SUBTASK 72-41-21-350-153 Identify the Repair

      1. Mark VRS6336/2 adjacent to the part number when a damaged plate is replaced.

      1. Refer to the SPM TASK 70-09-00-400-501, SUBTASK 70-09-00-400-001.

      2. Use vibro engraving equipment.

    34. SUBTASK 72-41-21-380-098 Apply the Surface Protection

      1. Apply the surface protection to the HP Compressor front heatshield, stage 10.

      1. Refer to VRS6335, TASK 72-41-21-300-083.

    35. Figure: Repair details and dimensions - Assy A

    Repair details and dimensions - Assy A

    Figure: Repair details and dimensions - Assy B

    Repair details and dimensions - Assy B

    Figure: Repair details and dimensions - Assy A

    Repair details and dimensions - Assy A

    Figure: Repair details and dimensions - Assy B

    Repair details and dimensions - Assy B

Requirements After Job Completion

Follow-On Conditions

NONE
Link not Found
Manufacturer Code:LOCAL
Enterprise Name:LOCALLY SUPPLIED
Link not Found
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Link not Found
Manufacturer Code:LOCAL
Tool Number:Chemical cleaning equipment
Tool Name:Chemical cleaning equipment
Manufacturer Code:LOCAL
Tool Number:Penetrant crack test equipment
Tool Name:Penetrant Crack Test Equipment
Manufacturer Code:LOCAL
Tool Number:Portable grinding equipment
Tool Name:Portablegrinding equipment
Link not Found
Manufacturer Code:LOCAL
Tool Number:Toolmakers clamp
Tool Name:Toolmakers clamp
Manufacturer Code:LOCAL
Tool Number:Vertical drilling machine
Tool Name:Vertical drilling machine
Link not Found