TASK 72-00-40-220-001 HP System Module - Examine The HP System Module Front Face At Interface C-41, Inspection-001

DMC:V2500-A0-72-00-4000-00A-310A-B|Issue No:001.00|Issue Date:2014-05-01

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 72-00-40-220-001 HP System Module - Examine The HP System Module Front Face At Interface C-41, Inspection-001

General

Refer to TASK 72-00-00-200-000, (Examine the modular/non-modular interfaces), before you do this TASK.

The policy that is necessary for inspection is given in the SPM TASK 70-20-01-200-001.

The word 'reject' after an interface inspection statement requires that further detailed inspection or repair, as applicable, of the affected area be accomplished using data in the applicable ATA section of the part in question. Contact IAE for FAA approved data if the referenced TASK is not in the manual.

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NONE

Consumables, Materials and Expendables

NONE

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-00-40-220-051 Visually Examine the Front Flange of the HP Compressor Front Cases at Location 1

    1. Refer to Figure and Figure.

      2. Galled

      1. Reject

    2. SUBTASK 72-00-40-220-052 Visually Examine the VIGV at Location 2

    1. Refer to Figure and Figure.

      2. Nicked, up to 0.010 in. (0.26 mm)

      1. Accept

      3. Nicked, more than 0.010 in. (0.26 mm)

      1. Reject

      4. Cracked

      1. Reject

    3. SUBTASK 72-00-40-220-053 Visually Examine the VIGV Inner Shroud Seal Diameter at Location 3

    1. Refer to Figure and Figure.

      2. Damaged

      1. Reject

    4. SUBTASK 72-00-40-220-054 Visually Examine the Front Face of the Stage 3 HP Compressor Disk at Location 4

    1. Refer to Figure and Figure.

      2. Cracked

      1. Reject

      3. Dented

      1. Reject

    5. SUBTASK 72-00-40-220-055 Visually Examine the Stage 3 HP Compressor Curvic Coupling Inner Seal Diameter at Location 5

    1. Refer to Figure and Figure.

      2. Damaged

      1. Reject

    6. SUBTASK 72-00-40-220-056 Visually Examine the Stage 3 HP Compressor Curvic Coupling at Location 6

    1. Refer to Figure and Figure.

      2. Cracked

      1. Reject

      3. Damaged

      1. Reject

      4. Galled

      1. Reject

    7. SUBTASK 72-00-40-220-057 Visually examine the VIGV and the VSV Mechanism at Location 7

    1. Refer to Figure and Figure.

      2. Damaged - anywhere

      1. Reject

      3. Wear - centralizing pads

      1. Reject

      4. Wear - Lever arm to unison ring (loose lever arm)

      1. Reject

      5. Wear - Unison ring clevis to drag link (loose drag link)

      1. Reject

      6. Bent or twisted lever arms

      1. Reject

    8. SUBTASK 72-00-40-220-137 Measure the Stage 6 VSV Bushing Wear

    1. Hold the base of the lever attached to a stator vane, pull radially away from the engine.

    2. Using feeler gage measure the movement in the stator vane between the trunion of the lever arm and the spacer washers. Repeat the procedure for a selection of other stator vanes spread around the circumference of the engine.

      3. Amount of movement in stator vanes.

        1. Up to 0.040 in. (1.02 mm)

        1. Accept

        2. More than in Step

        1. Disassemble, 72-41-00 CONFIG-1 Page 501

    9. Figure: V2500-A1: Locations at interface C-41

    Sheet 1

    Legend
    V2500-A1: Locations at interface C-41

    Sheet 1

    Close

    Figure: V2500-A5: Locations at interface C-41

    Sheet 2

    Legend
    V2500-A5: Locations at interface C-41

    Sheet 2

    Close

Requirements After Job Completion

Follow-On Conditions

NONE