TASK 72-00-32-220-003-A00 LPC/Intermediate Case Module - Examine The Module Rear Face At Interface C-32, Inspection-003

DMC:V2500-A1-72-00-3200-02B-310A-B|Issue No:002.00|Issue Date:2017-11-01

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

Common Information

TASK 72-00-32-220-003-A00 LPC/Intermediate Case Module - Examine The Module Rear Face At Interface C-32, Inspection-003

General

The word Reject is used after an interface inspection statement to show that a higher level inspection and possible repair to the damaged part is necessary.

Do the higher level inspection procedure as found in the applicable Chapter/Section/Subject of this manual on the damaged part(s). It is not necessary to do the higher level inspection on parts that are serviceable to the interface inspection standard.

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

The policy that is necessary for inspection is given in the SPM TASK 70-20-01-200-501.

NOTE

To identify the consumable materials, refer to the PCI.

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NameManufacturerPart Number / IdentificationQuantityRemark
Portable MultimeterLOCALPortable Multimeter

Consumables, Materials and Expendables

NameManufacturerPart Number / IdentificationQuantityRemark
CoMat 05-019 WATERPROOF SILICON CARBIDELOCALCoMat 05-019
CoMat 06-018 FLUORESCENT PENETRANT (POST-EMULSIFIED HIGH SENSITIVITY)37676CoMat 06-018
CoMat 06-032 DRY DEVELOPER37676CoMat 06-032
CoMat 01-031 ACETONE (CH3)2COLOCALCoMat 01-031

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-00-32-220-059 Visually Examine the Front Engine Mount Tube at Location 1

    1. Refer to Figure.

      2. Scored

      1. Reject

      3. Cracked

      1. Reject

    2. SUBTASK 72-00-32-220-060 Visually Examine the Thrust Mount Brackets at Location 2

    1. Refer to Figure.

      2. Scored

      1. Reject

      3. Cracked

      1. Reject

    3. SUBTASK 72-00-32-220-061 Visually Examine the Oil/Air Transfer Tube Connections at Location 3

    1. Refer to Figure.

      2. Burrs

      1. Reject

      3. Blockage in oil passageway

      1. Reject

    4. SUBTASK 72-00-32-220-062 Examine the Fan Speed/Trim Balance Harness Terminal Block at Location 4 (Pre SBE 72-0508 and SBE 72-0508)

    1. Refer to Figure.

      2. Loose

      1. Reject

      3. Cracked

      1. Reject

      4. Do the loop resistance check between terminal number 1 and 2, 3 and 4, 5 and 6, 7 and 8.

      1. Measure each resistance and room temperature using multimeter.

      2. Calculate the corrected resistance by the subsequent formula.

        Rc = (234.5 + 20)/(234.5 + T) x Rm.

        Rc: Corrected Resistance (ohms).

        T: Measured Room Temperature (deg C).

        Rm: Measured Resistance (ohms).

        3. Pre SBE 72-0508: Check the resistance.

          NOTE

          Polish the measure point of the terminals to remove oxide on the terminals before the loop resistance check is examined. Use CoMat 05-019 WATERPROOF SILICON CARBIDE .

          1. Loop resistance between terminal number 1 and 2, 3 and 4, 5 and 6.

            1. If the corrected resistance Rc is between 75.0 and 101.0 ohms

            1. Accept

            2. Other than Step

            1. Reject

          2. Loop resistance between terminal number 7 and 8.

            1. If the corrected resistance Rc is between 75.0 and 96.0 ohms

            1. Accept

            2. Other than Step

            1. Reject

        4. SBE 72-0508: Check the resistance.

          NOTE

          Polish the measure point of the terminals to remove oxide on the terminals before the loop resistance check is examined. Use CoMat 05-019 WATERPROOF SILICON CARBIDE .

          1. Loop resistance between terminal number 1 and 2, 3 and 4, 5 and 6.

            1. If the corrected resistance Rc is between 37.0 and 57.0 ohms

            1. Accept

            2. Other than Step

            1. Reject

          2. Loop resistance between terminal number 7 and 8.

            1. If the corrected resistance Rc is between 25.0 and 45.0 ohms

            1. Accept

            2. Other than Step

            1. Reject

    5. SUBTASK 72-00-32-220-063 Visually Examine the Bleed Valve Actuator Rods at Location 5

    1. Refer to Figure.

      2. Rear end holes.

        1. Scored

        1. Reject

    6. SUBTASK 72-00-32-220-064 Visually Examine the Fan Frame Inner Struts at Location 6

    1. Refer to Figure.

      2. Welding line or heat damaged area on the trailing edge sheet metal.

        1. Cracked

        1. Reject

      3. Transverse to the trailing edge.

        1. Cracked

        1. Reject

    7. SUBTASK 72-00-32-220-065 Visually Examine the Brush Seal at Location 7

    1. Refer to Figure.

      2. Frayed

      1. Reject

    8. SUBTASK 72-00-32-220-066 Visually Examine the HP Compressor Front Shaft Curvic Teeth at Location 8

    1. Refer to Figure.

      2. Examine the HP compressor front shaft.

        1. Curvic teeth.

          1. Galled or damaged

          1. Reject

    9. SUBTASK 72-00-32-220-078 Visually Examine the Fan Case Rear Panel at Location 9

    1. Refer to Figure.

      2. Cracked

      1. Reject

      3. Missing

      1. Reject

    10. SUBTASK 72-00-32-220-079 Dimensionally Examine the Fan Exit Guide Vane at Location 10

    1. Refer to Figure.

      2. Step.

        1. Not more than 0.10 in. (2.54 mm)

        1. Accept

        2. More than Step

        1. Reject

    11. SUBTASK 72-00-32-220-080 Visually Examine the Screen at Location 11

    1. Refer to Figure and Figure.

      2. CAUTION

        IF THE SCREEN HAS A HOLE IN IT A PLASTIC COVER MUST BE INSTALLED OVER THE DUCT INLET WHEN MAINTENANCE WORK IS BEING PERFORMED IN THE SURROUNDING AREA. A FLAG MUST BE USED WHEN THE PLASTIC COVER IS USED TO REMIND MAINTENANCE PERSONNEL TO REMOVE THE COVER BEFORE ATTEMPTING TO START THE ENGINE.

        Visually examine the net.

        1. Torn

        1. Accept, provided all loose fibers are removed

      3. Visually examine the frame.

        1. Scattered damage

        1. Accept

        2. Cracked

        1. Reject

    12. SUBTASK 72-00-32-220-110 Visually Examine the Mount Tube Stopper at Location 12

    1. Refer to Figure.

      2. Any damage

      1. Reject

    13. SUBTASK 72-00-32-230-052: Examine the Fan Frame Rear Wall Window for Cracks at Location 13 (Pre SBE 72-0150)

    1. Refer to Figure.

      2. Do the penetrant crack test on the rear wall window (two places) that is given below. Use the applicable penetrant inspection procedure.

        1. Cracked.

          1. Not more than 0.196 in. (5.00 mm) in length

          1. Repair VRS1122, TASK 72-00-32-300-002 (REPAIR-002)

          2. More than in Step

          1. Reject

    14. SUBTASK 72-00-32-220-111: Examine the Fan Frame Assembly for Preventative Repair at Location 13 (Pre SBE 72-0150)

    1. Refer to Figure.

      2. Examine engine log book, repair number and cycles marking.

        1. If accumulated engine cycle is up to 10,000 cycles.

        1. Accept.

        2. More than Step.

        1. If VRS1122 is marked near part number of the fan frame, go to Step.

          2. Other than Step

          1. Repair VRS1122 TASK 72-00-32-300-002 (Repair-002).

          3. Calculate engine cycle since VRS1122 was last applied.

          1. Find cycle marking near VRS1122 marking.

          2. Calculate cycles (C) since VRS1122 was last applied.

            C = (accumulated engine cycles) - (cycles since last VRS1122).

            3. If C is up to 7,500 cycles.

            1. Accept.

            4. If C is equal to or more than 7,500 cycles.

            1. Repair VRS1122, TASK 72-00-32-300-002 (Repair-002).

    15. SUBTASK 72-00-32-220-009 Visually Examine the Thrust Mount Bracket Bolts at Location 14

    1. Refer to Figure.

      2. Corroded.

      1. Reject.

    16. Figure: Locations at Interface C-32

    Locations at Interface C-32

    Figure: Locations at Interface C-32

    Locations at Interface C-32

    Figure: Inspection of the Screen

    Inspection of the Screen

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Revised the procedure to add subtask information. (87VJ313R)

Manufacturer Code:37676
Enterprise Name:ITW MAGNAFLUX
BU Name:MAGNAFLUX CORPORATION
Street:155 HARLEM AVE
City:GLENVIEW
State:IL
Zip Code:60025
Country:USA
Phone Number:1-847-657-5300
Fax Number:1-847-867-5388
Internet:www.magnaflux.com
Manufacturer Code:LOCAL
Enterprise Name:LOCALLY SUPPLIED
Manufacturer Code:LOCAL
Supply Number:CoMat 01-031
Type:sp01
Supply Short Name:CoMat 01-031 ACETONE (CH3)2CO
Supply Name:CoMat 01-031 ACETONE (CH3)2CO
Specification Groups:
Doc NumberType
OMAT: 150 (RR REF)COMMERCIAL GRADE O-A-51
PMC 9008 (PW REF)COMMERCIAL GRADE O-A-51
JCR-041 (JAEC REF)COMMERCIAL GRADE O-A-51
MTH 169 (98%) (MTU REF)COMMERCIAL GRADE O-A-51
Suppliers:
ManufacturerRemarks
LOCAL
K6835
81348
K3504
U1185
24853
70657
Manufacturer Code:1E1X8
Supply Number:CoMat 05-019
Type:sp01
Supply Short Name:CoMat 05-019 WATERPROOF SILICON CARBIDE
Supply Name:CoMat 05-019 WATERPROOF SILICON CARBIDE
Specification Groups:
Doc NumberType
OMAT: 5/31 (RR REF)WATERPROOF SILICON CARBIDE ABRASIVE PAPER, CAMI GRIT DESIGNATION 400 (ANSI B74.18)
JCR-184 (JAEC REF)
Suppliers:
ManufacturerRemarks
1E1X8
LOCAL
K6835
Manufacturer Code:X222X
Supply Number:CoMat 06-018
Type:sp01
Supply Short Name:CoMat 06-018FLUORESCENT PENETRANT (POST-EMULSIFIED HIGH SENSITIVITY)
Supply Name:CoMat 06-018 FLUORESCENT PENETRANT (POST-EMULSIFIED HIGH SENSITIVITY)
Specification Groups:
Doc NumberType
It is not permitted to mix the selected CoMat 06‐018 letter suffix material with other CoMat 06‐018 letter suffix materials. Where CoMat 06‐018 is specified with no suffix, use one of the CoMat 06‐018 letter suffix materials.
Suppliers:
ManufacturerRemarks
X222X
Manufacturer Code:37676
Supply Number:CoMat 06-032
Type:sp01
Supply Short Name:CoMat 06-032 DRY DEVELOPER
Supply Name:CoMat 06-032 DRY DEVELOPER
Specification Groups:
Doc NumberType
ZYGLO ZP-4B
Suppliers:
ManufacturerRemarks
37676
Manufacturer Code:LOCAL
Tool Number:Portable Multimeter
Tool Name:Portable Multimeter