TASK 72-60-24-200-001 PMA Drive Housing - Examine, Inspection-001

DMC:V2500-A0-72-60-2404-00A-300A-C|Issue No:003.00|Issue Date:2015-08-01

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 72-60-24-200-001 PMA Drive Housing - Examine, Inspection-001

Effectivity

FIG/ITEM

PART NO.

01-180

4B0292

01-180

4B0352

General

This TASK gives the procedure for the inspection of the PMA drive housing. For the other parts of the extension layshaft gear assembly, refer to TASK 72-60-24-200-000.

Fig/item numbers in parentheses in the procedure agree with those used in the IPC.

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

All the parts must be cleaned before any part is examined. Refer to the SPM TASK 70-11-03-300-503.

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 the SPM TASK 70-23-00-230-501. Do the test before the part is visually examined. Limits for cracks are given in the SUBTASK for each part.

A ** following repair referenced in this inspection indicates that the repair is not yet published in the current revision of the manual and the part must be rejected. Contact IAE for additional information concerning FAA approved repair date.

Do not discard any part until you are sure there are no repairs available. Refer to the instructions in Repair before a discarded part is used again or oversize parts are installed.

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 parts must be examined to make sure that all the 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 data on these items:

Definitions of Damage, 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 is 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
Workshop inspection equipmentLOCALWorkshop inspection equipment
FPI inspection stationLOCALFPI inspection station
Tridimensional measuring unitLOCALTridimensional measuring unit

Consumables, Materials and Expendables

NONE

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-60-24-230-051 Do a Crack Test on the PMA Drive Housing (01-180) (Fluorescent Penetrant)

    1. Clean the parts. Refer to TASK 72-60-24-100-000.

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

        PART IDENT

        TASK/SUBTASK

        PMA Drive housing

        1. Cracks

        1. Reject

        2. Through porosity

        1. Reject

    2. SUBTASK 72-60-24-220-051 Examine the PMA Drive Housing (01-180) All Areas

      1. Cracks

      1. Reject

    3. SUBTASK 72-60-24-220-117 Examine the PMA Drive Housing (72-60-24,01-180) Rough Surfaces at Location 1

    1. Refer to Figure and Figure.

      2. Nicks, scores, dents or scratches.

        1. All quantity, all length, not more than 0.0138 in. (0.350 mm) in depth

        1. Accept

        2. More than Step

        1. Repair VRS5070, TASK 72-60-24-300-001 (REPAIR-001)

    4. SUBTASK 72-60-24-220-061 Examine the PMA Drive Housing (72-60-24,01-180) Machined Seal Surfaces at Location 2

    1. Refer to Figure and Figure.

      2. Nicks, scores, dents or scratches.

        1. All quantity, all length, not more than 0.004 in. (0.10 mm) in depth not extended across the seal surface

        1. Accept

        2. More than Step

        1. Repair VRS5070, TASK 72-60-24-300-001 (REPAIR-001)

    5. SUBTASK 72-60-24-220-062 Examine the PMA Drive Housing (72-60-24,01-180) Machined not Seal Surfaces at Locations 3

    1. Refer to Figure and Figure.

      2. Nicks, scores, dents or scratches.

        1. All quantity, all length, not more than 0.008 in. (0.20 mm) in depth

        1. Accept

        2. More than Step

        1. Repair VRS5070, TASK 72-60-24-300-001 (REPAIR-001)

    6. SUBTASK 72-60-24-220-063 Examine the PMA Drive Housing (72-60-24,01-180) Studs and Lockrings

    1. Refer to Figure and Figure.

      2. Perpendicularity.

        1. More than 0.0138 in. (0.350 mm) each 3.937 in. (100.00 mm). No axial movement is permitted (moved by hand)

        1. Repair VRS5071, TASK 72-60-24-300-002 (REPAIR-002)

      3. Thread damaged or not there

      1. Repair VRS5071, TASK 72-60-24-300-002 (REPAIR-002)

    7. SUBTASK 72-60-24-220-118 Examine the PMA Drive Housing (72-60-24,01-180) Helicoil Inserts (SBE 72-0492)

      1. Loose, missing or with internal thread damaged

      1. Repair VRS5699,TASK 72-60-24-300-015 (REPAIR-015)

    8. SUBTASK 72-60-24-220-064 Examine the PMA Drive Housing (72-60-24,01-180) Mounting Face at Location 4

    1. Refer to Figure and Figure.

      2. Parallelism.

        1. In 0.001 in. (0.025 mm) FIR in relation to surfaces B and C

        1. Accept

        2. More than Step

        1. Repair VRS5076, TASK 72-60-24-300-007 (REPAIR-007)

    9. SUBTASK 72-60-24-220-065 Examine the PMA Drive Housing (72-60-24,01-180) PMA Support Mating Surface at Location 5

    1. Refer to Figure and Figure.

      2. Parallelism.

        1. In 0.001 in. (0.025 mm) FIR in relation to plane X

        1. Accept

        2. More than Step

        1. Repair VRS5072, TASK 72-60-24-300-003 (REPAIR-003)

    10. SUBTASK 72-60-24-220-066 Examine the PMA Drive Housing (72-60-24,01-180) PMA Support Bore at Location 4062

    1. Refer to Figure and Figure.

      2. Diameter.

        1. Between 3.1890 and 3.1904 in. (81.000 and 81.035 mm)

        1. Accept

        2. More than 3.1904 in. (81.035 mm)

        1. Repair VRS5075, TASK 72-60-24-300-006 (REPAIR-006)

      3. True position.

        1. In a diameter of 0.001 in. (0.025 mm) FIR. in relation to system W

        1. Accept

        2. More than Step

        1. Repair VRS5075, TASK 72-60-24-300-006 (REPAIR-006)

    11. SUBTASK 72-60-24-220-067 Examine the PMA Drive Housing (72-60-24,01-180) Piloting Diameter at Location 4033

    1. Refer to Figure and Figure.

      2. Diameter.

        1. Between 4.3307 and 4.3293 in. (110.000 and 109.965 mm)

        1. Accept

        2. Less than 4.3293 in. (109.965 mm)

        1. Repair VRS5077, TASK 72-60-24-300-008 (REPAIR-008)

    12. SUBTASK 72-60-24-220-068 Examine the PMA Drive Housing (72-60-24,01-180) Bearing Bore at Location 4028

    1. Refer to Figure and Figure.

      2. Diameter.

        1. Between 2.9522 and 2.9529 in. (74.985 and 75.004 mm)

        1. Accept

        2. More than 2.9529 in. (75.004 mm)

        1. Repair VRS5074, TASK 72-60-24-300-005 (REPAIR-005)

      3. True position.

        1. In a diameter of 0.001 in. (0.025 mm) FIR. in relation to system W

        1. Accept

        2. More than Step

        1. Repair VRS5074, TASK 72-60-24-300-005 (REPAIR-005)

    13. SUBTASK 72-60-24-220-069 Examine the PMA Drive Housing (72-60-24,01-180) Bearing Mating Surface at Location 6

    1. Refer to Figure and Figure.

      2. Parallelism.

        1. In 0.001 in. (0.025 mm) FIR. in relation to plane X

        1. Accept

        2. More than Step

        1. Repair VRS5073, TASK 72-60-24-300-004 (REPAIR-004)

    14. Figure: Locations - PMA drive housing

    Locations - PMA drive housing

    Figure: Locations - PMA Drive Housing

    Locations - PMA Drive Housing

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Revised Figure-02. (15VC316)

Manufacturer Code:LOCAL
Enterprise Name:LOCALLY SUPPLIED
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Manufacturer Code:LOCAL
Tool Number:Tridimensional measuring unit
Tool Name:Tridimensional measuring unit
Manufacturer Code:LOCAL
Tool Number:Workshop inspection equipment
Tool Name:Workshop inspection equipment