TASK 72-32-03-200-003-B00 Fan Frame - Examine, Inspection-003

DMC:V2500-A0-72-32-0301-00B-300A-C|Issue No:004.00|Issue Date:2020-05-01

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 72-32-03-200-003-B00 Fan Frame - Examine, Inspection-003

Effectivity

FIG/ITEM

PART NO.

03-100

5A1087

03-100

5A1448

03-100

5A1652

03-100

5A0423

03-100

5A1377

03-100

5A1424

03-100

5A1654

03-100

5A1828

03-100

5A1824

General

This TASK gives the procedure for the inspection of the fan frame assembly. For the other intermediate structure parts, refer to TASK 72-32-03-200-000 (INSPECTION-000).

The policy that is necessary for inspection is given in the SPM TASK 70-21-01-200-501 .

All parts must be cleaned before any part is examined. Refer to TASK 72-32-03-100-000 (CLEANING-000).

All parts must be visually examined for damage, corrosion and wear. Any defects that are not identified in the procedure must be referred to IAE.

The procedure for those parts which must have a crack test is given in SUBTASK 72-32-03-230-051 . Do the test before the part is visually examined.

Do not discard any part until you are sure there are no repairs available.

Refer to the instructions in the repair before a discarded part is used again or oversize parts are installed.

Parts which must be discarded can be held although no repair is available.

The repair of a discarded part could be shown to be necessary at a later date.

All parts must be examined to make sure that all repairs have been completed satisfactorily.

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

References

Refer to the SPM for the data on these items.

Definitions of damages, SPM TASK 70-02-02-350-501.

Inspection of parts, SPM TASK 70-20-01-200-501.

Some data on these items is contained in this TASK. For more data on these items refer to SPM.

Method of testing for crack indications.

Chemical processes.

Surface protection.

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NameManufacturerPart Number / IdentificationQuantityRemark
Fluorescent penetrant inspection equipmentLOCALFluorescent Penetrant Inspection Equipment
MeggerLOCAL

Consumables, Materials and Expendables

NONE

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-32-03-230-079 Examine the Fan Frame Assembly for Cracks

    1. Clean the part. Refer to TASK 72-32-03-100-000 (CLEANING-000).

      2. Do the crack test on the part that is given below. Use the applicable penetrant inspection procedure.

        PART IDENT

        TASK/SUBTASK

        Fan Frame Assembly

        1. Cracked

        1. Reject

    2. SUBTASK 72-32-03-220-152 Examine the Fan Frame Assembly Outer Struts

    1. Refer to Figure and Figure.

      2. Examine the outer struts at Location 1.

        1. Dented.

          1. Area A, 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

          2. Area B, two smooth contoured dents per strut 0.020 in. (0.50 mm) in depth

          1. Accept

          3. More than in Step and Step

          1. Reject

        2. Nicked and scratched.

          1. Area A and B, any nicks or scratches

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

        3. Blocked.

          1. Air tubes

          1. Clean with high pressure air blast

            NOTE

            Clean obstacles from the inside of the strut which have blocked the tube.

      3. Examine the strut faces at location 2.

        1. Galled

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

        2. Scored

        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)

        2. Locking torque of the wire thread inserts.

          3. 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)

    3. SUBTASK 72-32-03-220-153 Examine the Fan Frame Assembly Inner Struts

    1. Refer to Figure.

      2. Examine the inner struts at Location 3.

        1. Dented.

          1. Up to 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. Blocked

          1. Air tubes

          1. Clean with high pressure air blast

            NOTE

            Clean obstacles from the inside of the strut which have blocked the tube.

    4. SUBTASK 72-32-03-220-154 Examine the Fan Frame Assembly Front Flanges

    1. Refer to Figure and Figure.

      2. Examine the front flanges at Location 4.

        1. Galled.

          1. Up to 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)

          3. More than 30 percent of each flange surface

          1. Reject

        2. Nicked.

          1. Up to 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)

      3. Examine the snap diameter at location 0304.

        1. Worn.

          1. If the diameter is between 21.4961 and 21.5003 in. (546.000 and 546.110 mm)

          1. Accept

          2. More than 21.5003 in. (546.110 mm)

          1. Reject

        3. Write down the dimension of the diameter

    5. SUBTASK 72-32-03-220-155 Examine the Fan Frame Assembly Sealing Rubber

    1. Refer to Figure.

      2. Examine the sealing rubber at Location 6.

        1. Torn

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

        2. Unbonded

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

    6. SUBTASK 72-32-03-220-156 Examine the Fan Frame Assembly Rear Flange

    1. Refer to Figure and Figure.

      2. Examine the rear flanges at Location 7.

        1. Nicked.

          1. Up to 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 thread 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)

      3. Examine the snap diameter at location 0308.

        1. Worn.

          1. If the diameter is between 11.3381 and 11.3400 in. (287.986 and 288.036 mm)

          1. Accept

          2. More than 11.3400 in. (288.036 mm)

          1. Reject

          2. Write down the dimension of the diameter.

    7. SUBTASK 72-32-03-220-157 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 72-32-03-220-158 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)

      3. Examine the bore diameter in the thrust mount pads at location 5005 and 5006.

        1. Worn.

          1. If the diameter is between 1.7323 and 1.7338 in. (44.000 and 44.039 mm)

          1. Accept

          2. More than 1.7338 in. (44.039 mm)

          1. Reject

        3. Write down the dimension of the diameter

      4. Examine the bore diameter in the thrust tube mount pad at location 5003.

        1. Worn.

          1. If the diameter is between 3.9371 and 3.9378 in. (100.000 and 100.022 mm)

          1. Accept

          2. More than 3.9378 in. (100.022 mm)

          1. Reject

        3. Write down the dimension of the diameter

    9. SUBTASK 72-32-03-220-159 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 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)

    10. SUBTASK 72-32-03-220-160 Examine the Fan Frame Assembly Flow Path Surface

    1. Refer to Figure.

      2. Examine the flow path surfaces at Location 14 and 15.

        1. Dented.

          1. Up to 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)

    11. SUBTASK 72-32-03-220-161 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 almel stud and the chromel stud. Use a megger 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 in Step

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

    12. SUBTASK 72-32-03-220-162 Examine the Fan Frame Assembly Bushing Bore

    1. Refer to Figure.

      2. Examine the bushing bore diameter at Location 0408.

        1. Worn.

          1. If the diameter is between 1.7323 and 1.7332 in. (44.000 and 44.025 mm)

          1. Accept

          2. More than 1.7332 in. (44.025 mm)

          1. Reject

        3. Write down the dimension of the diameter

    13. SUBTASK 72-32-03-220-163 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 or damaged rivet nuts

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

        2. Loose or damaged pins

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

    14. SUBTASK 72-32-03-220-164 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).

    15. SUBTASK 72-32-03-220-188 Examine the Fan Frame Assembly Chamfer of Thrust Mount pad for Forward Mount Tube Assembly

    1. Refer to Figure.

      2. Examine the chamfer of thrust mount pad for forward mount tube assembly at Location 20.

        1. Nicked, dented and scratched.

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

    16. SUBTASK 72-32-03-220-189 Examine the Fan Frame Assembly Plate

    1. Refer to Figure.

      2. Examine the plate at Location 21.

        1. Fretted.

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

    17. SUBTASK 72-32-03-220-190 Examine the Fan Frame Assembly Rear Face Around the BSBVA Mount Flange

    1. Refer to Figure.

      2. Examine the rear face around the BSBVA mount flange at Location 22.

        NOTE

        BSBVA mount flange attaching area (Location 18) and rear wall window edge (Location 23) are not included in the Location 22.

        1. Fretted.

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

    18. SUBTASK 72-32-03-220-191 Examine the Fan Frame Assembly Rear Wall Window Edge

    1. Refer to Figure.

      2. Examine the rear wall window edge at Location 23.

        1. Fretted and dented.

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

    19. Figure: Locations on the fabrication fan frame assembly

    Locations on the fabrication fan frame assembly

    Figure: Locations on the fabrication fan frame assembly

    Locations on the fabrication fan frame assembly

    Figure: Locations on the fabrication fan frame assembly

    Locations on the fabrication fan frame assembly

    Figure: Locations on the fan frame assembly

    Locations on the fan frame assembly

    Figure: Locations on the fabrication fan frame assembly

    Locations on the fabrication fan frame assembly

    Figure: Location on the Fan Frame Assembly

    Location on the Fan Frame Assembly

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Added new subtasks and revised step, figure. (97VJ705C)

Manufacturer Code:LOCAL
Enterprise Name:LOCALLY SUPPLIED
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