TASK 72-44-50-200-002 HPT Stage 1 Cooling (TOBI) Duct Deflector - Examine, Inspection-002

DMC:V2500-A0-72-44-5002-00A-310A-C|Issue No:002.00|Issue Date:2021-02-01

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 72-44-50-200-002 HPT Stage 1 Cooling (TOBI) Duct Deflector - Examine, Inspection-002

Effectivity

FIG/ITEM

PART NO.

01-080

2A0086

General

This TASK gives the procedure for the inspection of the HPT cooling duct deflector. For the other part of the stage 1 HPT cooling duct assembly, refer to TASK 72-44-50-200-000 (INSPECTION/CHECK-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 70-20-00-200-501.

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.

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

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 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 72-44-50-230-052-001 Examine the HPT Cooling Duct Deflector (01-080) for Cracks

    1. Clean the Part. Refer to TASK 72-44-50-100-002 (CLEANING-002, CONFIG-001).

      2. Do the crack test on the part that is given below.

        .

        PART IDENT

        TASK/SUBTASK

        HPT cooling duct deflector

        (Dip or Spray)

        1. Cracked

        1. Repair, VRS3267 TASK 72-44-50-300-008 (REPAIR-008)

    2. SUBTASK 72-44-50-230-052-002 Examine the HPT Cooling Duct Deflector (01-080) for Cracks

    1. Clean the Part. Refer to TASK 72-44-50-100-002 (CLEANING-002, CONFIG-001).

      2. Do the crack test on the part that is given below.

        PART IDENT

        TASK/SUBTASK

        HPT cooling duct deflector

        (Dip or Spray)

        1. Cracked

        1. Repair, VRS3267 TASK 72-44-50-300-008 (REPAIR-008)

    3. SUBTASK 72-44-50-220-059 Examine the HPT Cooling Duct Deflector (01-080) for Cracks, Dents, Erosion, Nicks and Scratches

    1. Refer to Figure.

      2. Examine the deflector surfaces for cracks at location 3.

        1. Cracks

        1. Repair, VRS3267 TASK 72-44-50-300-008 (REPAIR-008)

      3. Examine the deflector surfaces for nicks and scratches at location 3.

        1. Small nicks or scratches.

          1. Any amount up to 0.005 in. (0.127 mm) in depth

          1. Accept

          2. Other than Step

          1. Repair, VRS3267 TASK 72-44-50-300-008 (REPAIR-008)

      4. Examine the deflector surface for dents at location 3.

        1. Dents.

          1. Up to 10 round bottom dent and no more than 0.250 in. (6.350 mm) in depth. There can be no cracks

          1. Accept

          2. Other than Step

          1. Repair, VRS3267 TASK 72-44-50-300-008 (REPAIR-008)

      5. Examine the deflector for erosion at location 3.

        1. Erosion (not in areas with dents or on inner diameter contact surfaces at location 2).

          1. Up to 0.005 in. (0.127 mm) of the surface but not in areas specified

          1. Accept

          2. Other than Step

          1. Repair, VRS3267 TASK 72-44-50-300-008 (REPAIR-008)

    4. SUBTASK 72-44-50-220-060 Examine the HPT Cooling Duct Deflector (01-080) for Areas that have Wear or are thin

    1. Refer to Figure.

      2. Examine the deflector inner diameter contact surfaces for wear and thin areas at locations 1 and 2.

        1. Wear or thin areas

        1. Reject

    5. SUBTASK 72-44-50-220-129 Examine the HPT Cooling Duct at Location H for the Diameter

      1. Refer to Figure.

        1. If the diameter is between 17.340 in. and 17.360 in. (440.44 mm and 440.94 mm).

        1. Accept.

        2. Write down the dimension of the diameter.

        2. Other than Step.

        1. Reject.

    6. Figure: HPT Cooling Duct Deflector Inspection Locations

    HPT Cooling Duct Deflector Inspection Locations

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Added subtask and revised figure. (18VC083)