TASK 72-32-85-200-003 Fan Case Air Pressure Boss - Examine, Inspection-003

DMC:V2500-A0-72-32-8503-00A-300A-C|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

All

Common Information

TASK 72-32-85-200-003 Fan Case Air Pressure Boss - Examine, Inspection-003

Effectivity

FIG/ITEM

PART NO.

02-100

5A9518

General

This TASK gives the procedure for the inspection of the fan exit pressure boss. For the other parts of the LP compressor/intermediate case module, refer to TASK 72-32-85-200-000 (INSPECTION-000).

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

All the parts must be cleaned before any part is examined. Refer to TASK 72-32-85-100-000 (CLEANING-000).

All the 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 have a crack test is given in Step. Do the test before the parts are visually examined.

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

Parts which should 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 the parts must be examined to make sure 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

Record and Control of the Lives of Parts, SPM TASK 70-05-00-220-501

Inspection of Parts, SPM TASK 70-20-00-200-501

Some data on these items are contained in this TASK. For more data on these items refer to the 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

Consumables, Materials and Expendables

NONE

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-32-85-230-058 Examine the Fan Exit Pressure Boss (02-100) for Cracks

      1. Clean the part

      1. Refer to TASK 72-32-85-100-000 (CLEANING-000)

      2. Do the test for cracks on the parts that are given below. Use the applicable penetrant procedure.

        PART IDENT

        TASK/SUBTASK

        Fan Exit Pressure Boss

      2. Cracked

      1. Reject

    2. SUBTASK 72-32-85-220-148 Examine the Fan Exit Pressure Boss (02-100) Bores at Locations 1 and 6

    1. Refer to Figure.

      2. Plugged

      1. Clean with air blast

    3. SUBTASK 72-32-85-220-149 Examine the Fan Exit Pressure Boss (02-100) Thread at Location 2

    1. Refer to Figure.

      2. Pick-up

      1. Repair, VRS1607 TASK 72-32-85-300-052 (Repair-052)

      3. Crossed or stripped

      1. Reject

    4. SUBTASK 72-32-85-220-150 Examine the Fan Exit Pressure Boss (02-100) Bolt Holes at Location 3

    1. Refer to Figure.

      2. Burred and galled.

        1. Up to 0.012 in. (0.30 mm) in depth

        1. Repair, VRS1607 TASK 72-32-85-300-052 (Repair-052)

        2. More than in Step

        1. Reject

    5. SUBTASK 72-32-85-220-151 Examine the Fan Exit Pressure Boss (02-100) Seal Surface at Location 4

    1. Refer to Figure.

      2. Nicked, scored and dented.

        1. Up to 0.004 in. (0.10 mm) in depth

        1. Accept

        2. More than in Step

        1. Repair, VRS1607 TASK 72-32-85-300-052 (Repair-052)

    6. SUBTASK 72-32-85-220-152 Examine the Fan Exit Pressure Boss (02-100) Flange Surface at Location 5

    1. Refer to Figure.

      2. Nicked, scored and dented.

        1. Up to 0.008 in. (0.20 mm) in depth

        1. Accept

        2. More than in Step

        1. Repair, VRS1607 TASK 72-32-85-300-052 (Repair-052)

    7. SUBTASK 72-32-85-220-153 Examine the Fan Exit Pressure Boss (02-100) all Other Surface

    1. Refer to Figure.

      2. Nicked, Scored and dented.

        1. Up to 0.010 in. (0.25 mm) in depth

        1. Accept

        2. More than in Step

        1. Repair, VRS1607 TASK 72-32-85-300-052 (Repair-052)

    8. Figure: Pressure boss inspection locations

    Pressure boss inspection locations

Requirements After Job Completion

Follow-On Conditions

NONE
Manufacturer Code:LOCAL
Enterprise Name:LOCALLY SUPPLIED
Manufacturer Code:LOCAL
Tool Number:Fluorescent penetrant inspection equipment
Tool Name:Fluorescent Penetrant Inspection Equipment