TASK 72-32-00-030-004-A00 LPC/Intermediate Case Module - Remove The Fan Case Liner Panels, Panel Rubber Seals, Fan Exit Guide Vanes, Acoustic Linings, And Rear Fairing, Disassembly-004 - Pre SBE 72-0103, Pre SBE72-0105

DMC:V2500-A1-72-32-0000-04A-530A-B|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 72-0103 AND Pre SBE 72-0105

Common Information

TASK 72-32-00-030-004-A00 LPC/Intermediate Case Module - Remove The Fan Case Liner Panels, Panel Rubber Seals, Fan Exit Guide Vanes, Acoustic Linings, And Rear Fairing, Disassembly-004 - Pre SBE 72-0103, Pre SBE72-0105

General

Fig/item numbers in parentheses in the procedure agree with those used in the IPC. Only the primary numbers are used. For the service bulletin alpha variants refer to the IPC.

Apply the approved penetrating oil before the removal of threaded parts. Let the parts soak before removal. For the approved oils and procedures, refer to the SPM TASK 70-64-00-640-501.

The number for each radial location must be identified in a clockwise direction. These start at the engine top position when you look from the rear of the engine, unless stated differently in the procedure.

The No. 1 strut, which is the top position strut of the fan frame assembly, is identified by the five pressure tubes on the No. 1 strut leading edge.

This TASK gives the procedure to remove the fan case liner panels, the panel rubber seals, the fan exit guide vanes, the acoustic linings and the rear fairing.

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NONE

Consumables, Materials and Expendables

NONE

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-32-00-030-089 Remove Silicone Compound from the Fan Exit Guide Vanes (FEGVs) and the Acoustic Linings

    1. Refer to Figure and Figure.

    2. Make sure that the fan frame and fan case assembly is installed horizontally on the turnover stand. Refer to TASK 72-32-00-030-003-A00 (DISASSEMBLY-003, CONFIG-001).

    3. Make sure that the work mat is in position in the fan case. Refer to TASK 72-32-00-030-003-A00 (DISASSEMBLY-003, CONFIG-001).

    4. CAUTION

      CAREFULLY USE A THIN BLADE CUTTER TO PREVENT DAMAGE TO THE SURFACES OF THE FEGVS.

      Carefully use a thin blade cutter to break silicone compound filled in the clearances between the FEGV outer platforms.

      5. CAUTION

        CAREFULLY USE A SCRAPER TO PREVENT DAMAGE TO THE SURFACES OF THE FEGVS.

        Remove silicone compound filled in the 40 recesses in the FEGV outer platforms and the 40 recesses in the FEGV inner platforms.

      1. Remove the silicone compound around the bolt in each recess with a scraper or an equivalent hand tool.

      6. CAUTION

        CAREFULLY USE A SCRAPER TO PREVENT DAMAGE TO THE SURFACES OF THE ACOUSTIC LININGS.

        Remove silicone compound filled in the 20 recesses in the acoustic linings.

      1. Remove the silicone compound around the bolt in each recess with a scraper or an equivalent hand tool.

    2. SUBTASK 72-32-00-030-090 Remove the Acoustic Linings from the FEGVs

    1. Refer to Figure.

      2. Remove the five acoustic linings from the FEGVs.

      1. Remove the two screws and dimpled washers which attach the end of each acoustic lining to the end of other acoustic lining.

      2. Remove the 20 bolts and washers which attach the five acoustic linings to the FEGVs. Remove the acoustic linings.

    3. SUBTASK 72-32-00-030-194 Remove the Brackets from the LP Compressor Rear Case

    1. Refer to Figure.

      2. Remove the eight brackets A, B, C, D, F, G and H from the rear flange of the LP Compressor rear case.

      1. Remove the 23 bolts (01-720) which attach the eight brackets to the rear flange.

      2. Remove the brackets.

    4. SUBTASK 72-32-00-030-091 Remove the FEGVs from the Fan Case

    1. Refer to Figure.

      2. Remove the 20 FEGVs from the fan case.

      1. Remove the two bolts and washers which attach each FEGV inner platform to the bush in the LP compressor stage 2.5 vanes.

      2. Remove the two bolts and washers which attach each FEGV outer platform to the fan case. Remove the FEGVs.

    3. Remove the work mat from the fan case.

    5. SUBTASK 72-32-00-030-195 Remove Silicone Compound from the Rear Fairing before Removal of the Bolts and Washers

    1. Refer to Figure.

    2. CAUTION

      CAREFULLY USE A SCRAPER TO PREVENT DAMAGE TO THE SURFACES OF THE REAR FAIRING.

      Remove silicone compound filled in the 10 recesses in the rear fairing with a scraper or an equivalent hand tool.

    6. SUBTASK 72-32-00-030-196 Remove the Rear Fairing from the LP Compressor Bleed Duct

    1. Refer to Figure.

    2. Remove the 10 bolts and washers which attach the rear fairing to the LP Compressor bleed duct. Remove the rear fairing.

    7. SUBTASK 72-32-00-030-197 Remove the Remaining Silicone Compound from the Rear Fairing the Bolts and the Washers

    1. Refer to Figure.

    2. CAUTION

      CAREFUULY USE A SCRAPER TO PREVENT DAMAGE TO THE SURFACES OF THE REAR FAIRING.

      Fully remove the remaining silicone compound from the rear fairing and the 10 bolts and washers with a scraper or an equivalent hand tool.

    8. SUBTASK 72-32-00-030-092 Remove the Remaining Silicone Compound from the FEGVs the Acoustic Linings, the Bolts and the Washers

    1. Refer to Figure and Figure.

    2. CAUTION

      CAREFULLY USE A SCRAPER TO PREVENT DAMAGE TO THE SURFACES OF THE FEGVS.

      Fully remove the remaining silicone compound from the 20 FEGVs with a scraper or an equivalent hand tool.

    3. CAUTION

      CAREFULLY USE A SCRAPER TO PREVENT DAMAGE TO THE SURFACES OF THE ACOUSTIC LININGS.

      Fully remove the remaining silicone compound from the five acoustic linings with a scraper or an equivalent hand tool.

    4. CAUTION

      CAREFULLY USE A SCRAPER TO PREVENT DAMAGE TO THE SURFACES OF THE BOLTS AND THE WASHERS.

      Fully remove the remaining silicone compound from the 100 bolts and washers with a scraper or an equivalent hand tool.

    9. SUBTASK 72-32-00-030-093 Remove the Fan Case Liners and the Panel Rubber Seals from the Fan Case

    1. Refer to Figure, Figure, Figure, Figure and Figure.

    2. CAUTION

      CAREFULLY USE A THIN BLADE CUTTER TO PREVENT DAMAGE TO THE SURFACES OF THE PANEL RUBBER SEALS. THE FAN CASE LINER PANELS AND THE STRUTS.

      Carefully use a thin blade cutter to break sealant filled in the clearances between the panel rubber seals and the fan case liner panels and the corners around the struts.

      3. Remove the 10 panel rubber seals from the fan case liner panels.

      1. Remove the 60 screws and four nuts which attach the panel rubber seals to the fan case liner panels.

      2. Remove the rubber seals.

      4. Remove the 10 fan case liner panels from the fan case.

      1. Remove the 31 screws and two nuts which attach the fan case liner panels to the fan case.

      2. Remove the fan case liner panels.

    10. SUBTASK 72-32-00-030-094 Remove the Remaining Sealant from the Panel Rubber Seals and the Fan Case Liner Panels

    1. Refer to Figure.

    2. CAUTION

      CAREFULLY USE A SCRAPER TO PREVENT DAMAGE TO THE SURFACES OF THE PANEL RUBBER SEALS AND THE FAN CASE LINER PANELS.

      Fully remove the remaining sealant from the panel rubber seals and the fan case liner panels with a scraper or an equivalent hand tool.

    11. Figure: Remove silicone compound from the FEGV outer platforms and the acoustic linings

    Remove silicone compound from the FEGV outer platforms and the acoustic linings

    Figure: Remove silicone compound from the FEGV outer platforms and the acoustic linings

    Remove silicone compound from the FEGV outer platforms and the acoustic linings

    Figure: Remove silicone compound from the FEGV inner platforms

    Remove silicone compound from the FEGV inner platforms

    Figure: Remove the acoustic linings from the FEGVs

    Remove the acoustic linings from the FEGVs

    Figure: Remove the brackets from the LP compressor rear case

    Remove the brackets from the LP compressor rear case

    Figure: Remove the FEGVs from the fan case

    Remove the FEGVs from the fan case

    Figure: Remove the silicone compound from the rear fairing

    Remove the silicone compound from the rear fairing

    Figure: Remove the rear fairing from the LP compressor bleed duct

    Remove the rear fairing from the LP compressor bleed duct

    Figure: Use a thin blade cutter to cause separation of the rubber seals and the liner panels which bonded by sealant

    Use a thin blade cutter to cause separation of the rubber seals and the liner panels which bonded by sealant

    Figure: Remove the panel rubber seals from the fan case liner panels

    Remove the panel rubber seals from the fan case liner panels

    Figure: Remove the screws and the nuts which attach the panel rubber seals to the fan case liner panels

    Remove the screws and the nuts which attach the panel rubber seals to the fan case liner panels

    Figure: Remove the fan case liner panels from the fan case

    Remove the fan case liner panels from the fan case

    Figure: Remove the screws and the nuts which attach the fan case liner panels to the fan case

    Remove the screws and the nuts which attach the fan case liner panels to the fan case

Requirements After Job Completion

Follow-On Conditions

NONE