TASK 72-00-32-200-010 LPC/Intermediate Case Module - Examine The Fan Frame Assembly (Level 2 Inspection Limits), Inspection-010

DMC:V2500-A0-72-00-3201-00A-300A-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 72-00-32-200-010 LPC/Intermediate Case Module - Examine The Fan Frame Assembly (Level 2 Inspection Limits), Inspection-010

General

This TASK gives the procedure for the inspection of the fan frame assembly below major soft time and scheduled for a level 2 inspection, as given in the Maintenance Management Program.

Where applicable, these inspections are to be done in conjunction with those given in the interface inspections. Refer to TASK 72-00-32-220-003-A00.

The module will be sufficiently disassembled (TASK 72-32-00-030-015) for the components to be examined as specified in accordance with this procedure.

The policy necessary for the inspection is given in the SPM TASK 70-20-00-200-501.

Clean the fan frame assembly. Degrease the fan frame assembly, make sure that all dirt and debris were removed before doing the inspection. Refer to the SPM TASK 70-11-03-300-503.

NOTE

The word "Reject" is used after an Interface/SP50 inspection statement to show that a higher-level inspection and possible repair to the damaged part is necessary if the part is rejected, refer to the related Inspection/Check. Do the higher-level inspection procedure as found in the applicable Chapter/Section/Subject of this manual for the damaged part(s).

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NameManufacturerPart Number / IdentificationQuantityRemark
MeggerLOCALMegger

Consumables, Materials and Expendables

NONE

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-00-32-220-152 Examine the Fan Frame Assembly Outer Struts

    1. Refer to Figure and Figure.

      2. Examine the outer struts at Location 1.

        1. If they are cracked

        1. Reject

        2. Dented (Area A).

          1. Not more than 0.006 in. (0.15 mm) in depth and 0.50 in. (12.7 mm) in length

          1. Accept

          2. Two smooth contoured dents per strut 0.030 in. (0.76 mm) in depth if there is no connecting distortion in Area B

          1. Accept

          3. More than in Step or Step

          1. Reject

        3. Dented (Area B).

          1. Not more than 0.004 in. (0.10 mm) in depth and 0.50 in. (12.7 mm) in length

          1. Accept

          2. Two smooth contoured dents per strut 0.020 in. (0.50 mm) in depth

          1. Accept

          3. More than in Step or Step

          1. Reject

        4. Nicked, scored or scratched (Area A).

          1. Not more than 0.006 in. (0.15 mm) in depth and 0.50 in. (12.7 mm) in length

          1. Accept

          2. More than in Step

          1. Repair, VRS1180 TASK 72-32-03-300-004 (REPAIR-004)

        5. Nicked, scored or scratched (Area B).

          1. Not more than 0.004 in. (0.10 mm) in depth and 0.50 in. (12.7 mm) in length

          1. Accept

          2. More than in Step

          1. Repair, VRS1180 TASK 72-32-03-300-004 (REPAIR-004)

    2. SUBTASK 72-00-32-220-153 Examine the Fan Frame Assembly Inner Struts

    1. Refer to Figure.

      2. Examine the inner struts at Location 3.

        1. Dented.

          1. Not more than 0.020 in. (0.50 mm) in depth

          1. Accept

          2. More than in Step

          1. Reject

        2. Nicked

        1. Repair, VRS1180 TASK 72-32-03-300-004 (REPAIR-004)

    3. SUBTASK 72-00-32-220-154 Examine the Fan Frame Assembly Front Flanges

    1. Refer to Figure.

      2. Examine the front flanges at Location 4.

        1. Galled.

          1. Not more than 0.010 in. (0.25 mm) in depth

          1. Accept

          2. More than in Step

          1. Repair, VRS1180 TASK 72-32-03-300-004 (REPAIR-004)

        2. Nicked.

          1. Not more than 0.006 in. (0.15 mm) in depth

          1. Accept

          2. More than in Step

          1. Repair, VRS1180 TASK 72-32-03-300-004 (REPAIR-004)

        3. Loose and/or damaged wire thread inserts

        1. Repair, VRS1182 TASK 72-32-03-300-006 (REPAIR-006)

        4. Locking torque of the wire thread inserts.

          1. Other than the torque limits as given in the SPM TASK 70-42-01-400-501

          1. Repair, VRS1182 TASK 72-32-03-300-006 (REPAIR-006)

        5. Damaged self locking nut threads

        1. Repair, VRS1184 TASK 72-32-03-300-007 (REPAIR-007)

        6. Locking torque of the self locking nuts.

          1. Other than the torque limits as given in the SPM TASK 70-42-01-400-501

          1. Repair, VRS1184 TASK 72-32-03-300-007 (REPAIR-007)

        7. Loose and/or missing rivets

        1. Repair, VRS1184 TASK 72-32-03-300-007 (REPAIR-007)

        8. Loose and/or damaged pins

        1. Repair, VRS1190 TASK 72-32-03-300-009 (REPAIR-009)

    4. SUBTASK 72-00-32-220-155 Examine the Fan Frame Assembly Sealing Rubber

    1. Refer to Figure.

      2. Examine the sealing rubber at Location 6.

        1. Torn or unbonded

        1. Repair, VRS1185 TASK 72-32-03-300-008 (REPAIR-008)

    5. SUBTASK 72-00-32-220-156 Examine the Fan Frame Assembly Rear Flange

    1. Refer to Figure.

      2. Examine the rear flanges at Location 7.

        1. Nicked.

          1. Not more than 0.006 in. (0.15 mm) in depth

          1. Accept

          2. More than in Step

          1. Repair, VRS1180 TASK 72-32-03-300-004 (REPAIR-004)

        2. Loose and/or damaged wire threads inserts

        1. Repair, VRS1182 TASK 72-32-03-300-006 (REPAIR-006)

        3. Locking torque of the wire thread inserts.

          1. Other than the torque limits as given in the SPM TASK 70-42-01-400-501

          1. Repair, VRS1182 TASK 72-32-03-300-006 (REPAIR-006)

        4. Loose and/or damaged pins

        1. Repair, VRS1190 TASK 72-32-03-300-009 (REPAIR-009)

    6. SUBTASK 72-00-32-220-157 Examine the Fan Frame Assembly Thrust Mount Pads

    1. Refer to Figure.

      2. Examine the thrust mount pads at Location 8.

        1. Loose and/or damaged pins

        1. Repair, VRS1190 TASK 72-32-03-300-009 (REPAIR-009)

        2. Loose and/or damaged studs

        1. Repair, VRS1192 TASK 72-32-03-300-010 (REPAIR-010)

    7. SUBTASK 72-00-32-220-158 Examine the Fan Frame Assembly V Groove

    1. Refer to Figure.

      2. Examine the V groove at Location 9.

        1. Galled

        1. Repair, VRS1180 TASK 72-32-03-300-004 (REPAIR-004)

    8. SUBTASK 72-00-32-220-159 Examine the Fan Frame Assembly PTO Sealing Plate Pads

    1. Refer to Figure.

      2. Examine the PTO sealing plate pad at Location 13.

        1. Loose and/or damaged pins

        1. Repair, VRS1190 TASK 72-32-03-300-009 (REPAIR-009)

        2. Loose and/or damaged wire thread inserts

        1. Repair, VRS1182 TASK 72-32-03-300-006 (REPAIR-006)

        3. Locking torque of the damaged wire thread inserts.

          1. Other than the torque limits as given in SPM TASK 70-42-01-400-501

          1. Repair, VRS1182 TASK 72-32-03-300-006 (REPAIR-006)

    9. SUBTASK 72-00-32-220-160 Examine the Fan Frame Assembly Flow Path Surface

    1. Refer to Figure.

      2. Examine the flow path surfaces at Location 14.

        1. If they are cracked

        1. Reject

        2. Dented.

          1. Not more than 0.020 in. (0.50 mm) in depth

          1. Accept

          2. More than in Step

          1. Reject

        3. Nicks, scores and/or scratches.

          1. Not more than 0.008 in. (0.20 mm) in depth and 0.50 in. (12.7 mm length

          1. Accept

          2. More than in Step

          1. Repair, VRS1180 TASK 72-32-03-300-004 (REPAIR-004)

          3. Rings, spots or squares which are darker in appearance than neighboring material

          1. Accept

      3. Examine the flow path surfaces at Location 15.

        1. Dented.

          1. Not more than 0.020 in. (0.50 mm) in depth

          1. Accept

          2. More than in Step

          1. Reject

        2. Nicks, scores and/or scratches

        1. Repair, VRS1180 TASK 72-32-03-300-004 (REPAIR-004)

    10. SUBTASK 72-00-32-220-161 Examine the Fan Frame Assembly Thermocouple

    1. Refer to Figure.

      2. Visually examine the thermocouple at Location 16.

        1. Clearance between the thermocouple and the fan frame assembly.

          1. No clearance

          1. Accept

          2. If clearance is identified

          1. Repair, VRS1727 TASK 72-32-03-300-013 (REPAIR-013)

      3. Do a loop resistance check between the alumel stud and the chromel stud. Use a Megger 1 off to measure the loop resistance of the thermocouple.

        1. If the loop resistance is between 0.4 and 1.8 ohm at room temperature

        1. Accept

        2. Other than Step

        1. Repair, VRS1727 TASK 72-32-03-300-013 (REPAIR-013)

    11. SUBTASK 72-00-32-220-162 Examine the Fan Frame Assembly Booster Stage Bleed Valve Actuator (BSBVA) Mount Flange

    1. Refer to Figure.

      2. Examine the BSBVA mount flange at Location 18.

        1. Loose and/or damaged rivet nuts

        1. Repair, VRS1222 TASK 72-32-03-300-033 (REPAIR-033)

        2. Loose and/or damaged pins

        1. Repair, VRS1190 TASK 72-32-03-300-009 (REPAIR-009)

    12. SUBTASK 72-00-32-220-163 Examine the Fan Frame Assembly Strut Fairing Mount Flange

    1. Refer to Figure.

      2. Examine the strut fairing mount flange at Location 19.

        1. Loose or damaged rivet nuts

        1. Repair, VRS1222 TASK 72-32-03-300-033 (REPAIR-033)

    13. Figure: Inspection of the Fan Frame Assembly

    Inspection of the Fan Frame Assembly

    Figure: Inspection of the Fan Frame Assembly

    Inspection of the Fan Frame Assembly

    Figure: Inspection of the Fan Frame Assembly

    Inspection of the Fan Frame Assembly

    Figure: Inspection of the Fan Frame Assembly

    Inspection of the Fan Frame Assembly

    Figure: Inspection of the Fan Frame Assembly

    Inspection of the Fan Frame Assembly

    Figure: Inspection of the Fan Frame Assembly

    Inspection of the Fan Frame Assembly

Requirements After Job Completion

Follow-On Conditions

NONE
Manufacturer Code:LOCAL
Enterprise Name:LOCALLY SUPPLIED
Manufacturer Code:LOCAL
Tool Number:Megger
Tool Name:Megger