TASK 72-45-21-200-002 HPT Case Orifice Plate - Examine - Inspection-002

DMC:V2500-A0-72-45-2102-00A-300A-C|Issue No:002.00|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 72-45-21-200-002 HPT Case Orifice Plate - Examine - Inspection-002

Effectivity

FIG/ITEM

PART NO.

01-100

2A3692

01-100

2A3734

01-100

2A3738

01-100

2A3739

General

This TASK gives the procedure for the inspection of the orifice plate. For other HP turbine case assembly parts, refer to TASK 72-45-21-200-000.

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

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

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

All 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.

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 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

Inspection of Parts, SPM TASK 70-02-01-200-501

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

NONE

Consumables, Materials and Expendables

NONE

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-45-21-230-057 Examine the Orifice Plate (01-100) for Cracks

    1. Clean the part, refer to TASK 72-45-21-100-000.

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

        PART IDENT TASK/SUBTASK

        Orifice Plate

        1. Cracked

        1. Reject

    2. SUBTASK 72-45-21-220-070 Examine the Orifice Plate (01-100) Surface, Except Edge Surface (Location 1)

    1. Refer to Figure.

      2. Examine the surface, except edge surface.

        1. Scored.

          1. Not more than 0.010 in. (0.25 mm) in depth with no raised metal

          1. Accept

          2. More than in (a)

          1. Reject

        2. Nicked.

          1. Not more than 0.010 in. (0.25 mm) in depth with no raised metal

          1. Accept

          2. More than in (a)

          1. Reject

        3. Scratched.

          1. Not more than 0.010 in. (0.25 mm) in depth with no raised metal

          1. Accept

          2. More than in (a)

          1. Reject

        4. Dented.

          1. Not more than 0.010 in. (0.25 mm) in depth with no raised metal

          1. Accept

          2. More than in (a)

          1. Reject

        5. Raised metal

        1. Repair, VRS1474 TASK 72-45-21-300-011 (REPAIR-011)

    3. SUBTASK 72-45-21-220-071 Examine the Orifice Plate (01-100) Edge Surface

    1. Refer to Figure.

      2. Examine the edge surface at location 1.

        1. Scored, nicked, scratched or dented

        1. Reject

        2. Raised metal

        1. Reject

    4. SUBTASK 72-45-21-220-072 Examine the Orifice Plate (01-100) for Deformation

      1. Deformed

      1. Reject

    5. Figure: Inspection of the Orifice Plate

    Inspection of the Orifice Plate

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Added new part number to the effectivity table (07VJ802A)