TASK 72-44-10-300-028HPT Stage 1 Support Assembly - Plasma Coat The Center Flange Forward Face, Repair-028 (VRS3818)

DMC:V2500-A0-72-44-1001-03A-609A-C|Issue No:002.00|Issue Date:2015-05-01

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 72-44-10-300-028HPT Stage 1 Support Assembly - Plasma Coat The Center Flange Forward Face, Repair-028 (VRS3818)

Effectivity

FIG/ITEM PART NO.

01-010

2A1292

01-010

2A1358

01-010

2A1664

01-010

2A2703

01-010

2A3360

01-010

2A3367

01-010

2A3896

01-010

2A4027

01-010

2A4085

Material of component

PART IDENT

SYMBOL

MATERIAL

Stage 1 HPT Support Assembly

-

Nickel Alloy

General

NOTE

Remove the nutplates from the Stage 1 HPT Support Assembly before you do this repair. Refer to Repair-002 (VRS3272) TASK 72-44-10-300-002.

NOTE

Remove the Stage 1 HPT Seal from the Stage 1 HPT Support Assembly before performing this repair. Refer to Disassembly-001 TASK 72-44-10-040-001.

Price and availability - Refer to IAE

Make sure that all cleaning and inspection procedures are done before this repair.

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

NOTE

To identify the consumable materials, refer to the PCI.

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NONE

Consumables, Materials and Expendables

NONE

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-44-10-330-001 Remove the Damage or Wear and all Coating from the Center Flange Forward Face by one or more of the procedures that follow.

    1. Refer to Figure through Figure.

      2. Remove all the coating by water jet strip procedure.

      1. Refer to SPM TASK 70-15-01-160-501.

      3. Remove all the coating by grinding.

      1. Refer to SPM TASK 70-32-07-100-501.

      4. Do a machine or grind operation to remove all wear.

      1. Refer to Figure through Figure.

      2. Refer to SPM TASK 70-32-07-100-501.

    2. SUBTASK 72-44-10-220-001 Examine the Stage 1 HPT Support

    1. Refer to Figure through Figure.

      2. Clean the stage 1 HPT support.

      1. Refer to the SPM TASK 70-11-03-300-503.

      3. If a grind operation was performed, do a fluorescent penetrant inspect on the center flange forward face.

    4. Do a dimensional inspection of the repair area.

    3. SUBTASK 72-44-10-340-001 Plasma Coat the Center Flange Front Face

    1. Refer to Figure through Figure.

      2. Mask the center flange bolt holes, rivet holes, and all areas not being coated.

      1. Refer to SPM TASK 70-34-18-380-501.

      2. No coating is permitted outside the repair area.

      3. Grit blast Center flange forward face.

      1. Refer to SPM TASK 70-34-18-380-501.

      2. Grit blast out of repair area is not permitted.

      4. Plasma coat Center flange forward face.

      1. Refer to SPM TASK 70-34-03-340-501. Use IAE 53-18 or IAE 53-47 coatings.

      2. Coat to a sufficient thickness to permit finishing.

      5. Remove the masking and the overspray.

      1. Use a non metallic hand scrapper.

    4. SUBTASK 72-44-10-320-001 Finish the Center Flange Forward Face After Plasma Coat

    1. Refer to Figure through Figure.

      2. Finish the Center Flange Forward Face after plasma coating.

      1. Refer to SPM TASK 70-32-07-100-501.

      2. Finish coat thickness must be 0.003 - 0.022 in. (0.080 - 0.560 mm).

      3. Clean the Stage 1 HPT Support.

      1. Refer to SPM TASK 70-11-03-300-503.

    5. SUBTASK 72-44-10-220-002 Examine the Repair

    1. Refer to Figure through Figure.

      2. Do a visual inspection of the plasma coat area.

      1. Refer to SPM TASK 70-34-03-340-501.

    6. SUBTASK 72-44-10-350-002 Identify the Repair

      1. Mark VRS3818 adjacent to the part number.

      1. Make a permanent mark by the procedure given in SPM TASK 70-09-00-400-501.

      2. Use the vibration peen method.

    7. SUBTASK 72-44-10-350-003 Postrequisites

      1. Re-install the Center Flange nut plates on the Stage 1 HPT Support Assembly.

      1. Refer to Repair-002 (VRS3272) TASK 72-44-10-300-002.

      2. Use the vibration peen method.

      2. Re-install the Stage 1 HPT Seal on the Stage 1 HPT Support Assembly.

      1. Refer to Assembly-001 TASK 72-44-10-440-001.

    8. Figure: Plasma Coat the HPT 1st Stage Support Center Flange Forward Face For P/N 2A1292 Only

    Plasma Coat the HPT 1st Stage Support Center Flange Forward Face For P/N 2A1292 Only

    Legend
    1

    Plasma Coat the HPT 1st Stage Support Center Flange Forward Face For P/N 2A1292 Only

    Unless Otherwise Specified, All Dimensions Are Applicable When Surface F Is Flat 0.005 In. (0.127 mm) And Diameter G Keeps A Clearance Envelope Of 28.242 in. (717.347 mm) Diameter In A Free State Or Held Condition. Hold The Part Only On Surfaces F, H And Diameter G.

    Unless Otherwise Specified, All Machined Surfaces Must Have Finish Of 0.125 in. (3.175 mm).

    Unless Otherwise Specified, Break Edges 0.003- 0.015 in. (0.080 - 0.380 mm).

    Unless Otherwise Specified All Finished Diameters Are Located Within 0.010 in. (0.254 mm) Diameter True Position In Relation To Surface A and Diameter B Regardless Of Feature Size.

    Close

    Figure: Plasma Coat the HPT 1st Stage Support Center Flange Forward Face For P/Ns 2A1358 and 2A1664 only

    Plasma Coat the HPT 1st Stage Support Center Flange Forward Face For P/Ns 2A1358 and 2A1664 only

    Legend
    1

    Plasma Coat the HPT 1st Stage Support Center Flange Forward Face For P/Ns 2A1358 and 2A1664 only

    Unless Otherwise Specified, All Dimensions Are Applicable When Surface F Is Flat 0.005 In. (0.127 mm) And Diameter G Keeps A Clearance Envelope Of 28.242 in. (717.347 mm) Diameter In A Free Or Held Condition. Hold The Part Only On Surfaces F, H And Diameter G.

    Unless Otherwise Specified, All Machined Surfaces Must Have Finish Of 0.125 in. (3.175 mm).

    Unless Otherwise Specified, Break Edges 0.003- 0.015 in. (0.080 - 0.380 mm).

    Unless Otherwise Specified All Finished Diameters Are Located Within 0.010 in. (0.254 mm) Diameter True Position In Relation To Surface A and Diameter B Regardless Of Feature Size.

    Close

    Figure: Plasma Coat the HPT 1st Stage Support Center Flange Forward Face For P/Ns 2A4085 only

    Plasma Coat the HPT 1st Stage Support Center Flange Forward Face For P/Ns 2A4085 only

    Plasma Coat the HPT 1st Stage Support Center Flange Forward Face For P/Ns 2A4085 only

    Legend
    1

    Plasma Coat the HPT 1st Stage Support Center Flange Forward Face For P/Ns 2A4085 only

    Unless Otherwise Specified, All Dimensions Are Applicable When Surface F Is Flat 0.005 In. (0.127 mm) And Diameter G Keeps A Clearance Envelope Of 28.242 in. (717.347 mm) Diameter In A Free Or Held Condition. Hold The Part Only On Surfaces F, H And Diameter G.

    Unless Otherwise Specified, All Machined Surfaces Must Have Finish Of 0.125 in. (3.175 mm).

    Unless Otherwise Specified, Break Edges 0.003- 0.015 in. (0.080 - 0.380 mm).

    Unless Otherwise Specified All Finished Diameters Are Located Within 0.010 in. (0.254 mm) Diameter True Position In Relation To Surface A and Diameter B Regardless Of Feature Size.

    2

    Plasma Coat the HPT 1st Stage Support Center Flange Forward Face For P/Ns 2A4085 only

    Unless Otherwise Specified, All Dimensions Are Applicable When Surface F Is Flat 0.005 In. (0.127 mm) And Diameter G Keeps A Clearance Envelope Of 28.242 in. (717.347 mm) Diameter In A Free Or Held Condition. Hold The Part Only On Surfaces F, H And Diameter G.

    Unless Otherwise Specified, All Machined Surfaces Must Have Finish Of 0.125 in. (3.175 mm).

    Unless Otherwise Specified, Break Edges 0.003- 0.015 in. (0.080 - 0.380 mm).

    Unless Otherwise Specified All Finished Diameters Are Located Within 0.010 in. (0.254 mm) Diameter True Position In Relation To Surface A and Diameter B Regardless Of Feature Size.

    Close

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Deleted CoMat 03-080A and 03-096A. Added IAE 53-18 and IAE 53-47 coatings. (15VC267)