TASK 72-44-10-840-001 HPT Stage 1 Support Assembly - Rework The Support Assembly, Rework-001 - SBE 72-0002

DMC:V2500-A1-72-44-1001-00A-933A-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

V2500-A1 and Pre SBE 72-0002

Common Information

TASK 72-44-10-840-001 HPT Stage 1 Support Assembly - Rework The Support Assembly, Rework-001 - SBE 72-0002

Effectivity

FIG/ITEM

PART NO.

01-010

2A1292

General

You must do the rework on the stage 2 HPT support assembly given in TASK 72-45-27-840-001, SBE 72-0002 - REWORK 001 and rework the HP turbine case assembly given in TASK 72-45-21-840-001, SBE 72-0002 - REWORK 001 at the same time you do the rework given in this procedure.

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

Refer to the indicated Service Bulletin for specific application requirements.

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NONE

Consumables, Materials and Expendables

NONE

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-44-10-350-051 Remove the Stage 1 HPT Seal from the Stage 1 HPT Support Assembly

      1. Remove the 2A0170 stage 1 HPT seal (1 off).

    2. SUBTASK 72-44-10-320-051 Machine the Stage 1 HPT Support Assembly

      1. Set up and machine the support assembly.

      1. Refer to Figure.

    3. SUBTASK 72-44-10-340-051 Plasma Coat the Stage 1 HPT Support Assembly

      1. NOTE

        Apply a mask to the nut plates if you did not remove the nut plates before plasma coat.

        Coat the support assembly to a thickness of 0.040 to 0.060in. (1.02 to 1.52 mm).

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

    4. SUBTASK 72-44-10-320-052 Machine the Stage 1 HPT Support Assembly After Plasma Coat

      1. Set up and machine the support assembly.

      1. Refer to Figure.

      2. Unless specified differently, the surface finish is 125.

    5. SUBTASK 72-44-10-350-052 Install the Stage 1 HPT Seal onto the Stage 1 HPT Support Assembly

      1. Install the 2A0170 stage 1 HPT seal (1 off) onto the support assembly.

    6. SUBTASK 72-44-10-350-053 Identify the Stage 1 HPT Support Assembly with the New Part Number

      1. Mark the new part number adjacent to the existing part number. Use the vibration peen method.

      1. NUMBER BEFORE - 2A1292 .

      2. NEW NUMBER - 2A1358.

      3. NUMBER BEFORE - 2A1293.

      4. NEW NUMBER - 2A1359.

      5. Refer to Figure and the SPM TASK 70-09-00-400-501.

    7. Figure: Remove and install the stage 1 HPT seal

    Remove and install the stage 1 HPT seal

    Figure: Rework of the stage 1 HPT support assembly

    Rework of the stage 1 HPT support assembly

Requirements After Job Completion

Follow-On Conditions

NONE