TASK 72-42-20-200-112 TCA Pressure Sensing Air Tube - Examine, Inspection-012

DMC:V2500-A0-72-42-2041-00A-310A-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 72-42-20-200-112 TCA Pressure Sensing Air Tube - Examine, Inspection-012

Effectivity

FIG/ITEM

PART NO.

04-260

2A0357-01

04-040

2A0358-01

General

This TASK gives the procedure for the inspection of the turbine cooling duct sensing tubes. For the other part of the No. 4 bearing compartment tubes, refer to Inspection-000 TASK 72-42-20-200-100.

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 SPM TASK 70-20-00-200-501.

All the parts must be cleaned before any part is examined. Refer to the SPM TASK 70-10-00-100-501.

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.

The procedure for those parts which must have a crack test is given in Step or Step 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 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

NameManufacturerPart Number / IdentificationQuantityRemark
IAE 2P16246 Pressure test plug0AM53IAE 2P162461 off
IAE 2P16250 Pressure test plug0AM53IAE 2P162501 off
IAE 2P16251 Pressure test adapter0AM53IAE 2P162511 off
IAE 2P16252 Pressure test adapter0AM53IAE 2P162521 off

Consumables, Materials and Expendables

NameManufacturerPart Number / IdentificationQuantityRemark
CoMat 10-045 LEAK CHECK FLUID, BUBBLES-TYPE03530CoMat 10-045

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-42-20-230-062-001 Examine the Turbine Cooling Duct Sensing Tube (04-040) for Cracks

    1. Clean the part. Refer to Cleaning-000 TASK 72-42-20-100-100.

      2. Do the test for cracks on the part that is given below. Use the applicable penetrant inspection procedure. Carefully examine the heat shields.

        1. Turbine cooling duct. Refer to SPM TASK 70-23-01-230-501 (Dip or Spray).

          1. Cracked

          1. Reject

    2. SUBTASK 72-42-20-230-062-002 Examine the Turbine Cooling Duct Sensing Tube (04-040) for Cracks

    1. Clean the part. Refer to Cleaning-000 TASK 72-42-20-100-100.

      2. Do the test for cracks on the part that is given below. Use the applicable penetrant inspection procedure. Carefully examine the heat shields.

        1. Turbine cooling duct. Refer to SPM TASK 70-23-02-230-501 (Dip or Spray).

          1. Cracked

          1. Reject

    3. SUBTASK 72-42-20-230-063-001 Examine the Turbine Cooling Duct Sensing Tube (04-260) for Cracks

    1. Clean the part. Refer to Cleaning-000 TASK 72-42-20-100-100.

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

        1. Turbine cooling duct. Refer to SPM TASK 70-23-01-230-501 (Dip or Spray).

          1. Cracked

          1. Reject

    4. SUBTASK 72-42-20-230-063-002 Examine the Turbine Cooling Duct Sensing Tube (04-260) for Cracks

    1. Clean the part. Refer to Cleaning-000 TASK 72-42-20-100-100.

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

        1. Turbine cooling duct sensing tube. Refer to SPM TASK 70-23-02-230-501 (Dip or Spray).

          1. Cracked

          1. Reject

    5. SUBTASK 72-42-20-220-074 Examine the Turbine Cooling Duct Sensing Tube (04-040) for Pits, Dents, Nicks and Kinks

    1. Refer to Figure.

      2. Examine the tube for pits, dents, nicks and kinks.

        1. Pitted

          1. Unlimited number of pits not more than 0.001 in. (0.025 mm) in depth, 0.062 in. (1.57 mm) in length and 0.010 in. (0.25 mm) in width

          1. Accept

          2. Maximum of three pits for each 2.00 in. (50.8 mm) length of tubing; not more than 0.003 in. (0.075 mm) in depth, 0.062 in. (1.57 mm) in length, 0.010 in. (0.25 mm) in width and no other dents within 0.125 in. (3.175 mm).

          1. Accept

          3. Other than in Step or Step.

          1. Reject

        2. Dents

          1. If the depth is not more than five percent of the tube outside diameter and the length is not less than three times the depth

          1. Accept

          2. Other than Step.

          1. Reject

        3. Nicks

          1. As much as 0.0625 in. (1.588 mm) in length, 0.010 in. (0.254 mm) in width and 0.005 in. (0.127 mm) in depth. Nicks must be no less than 12 in. (304.8 mm) apart and have no sharp edges.

          1. Accept

          2. Other than in Step.

          1. Reject

        4. Kinks

        1. Reject

    6. SUBTASK 72-42-20-220-075 Examine the Turbine Cooling Duct Sensing Tube (04-260) for Pits, Dents, Nicks and Kinks

    1. Refer to Figure.

      2. Examine the tube for pits, dents, nicks and kinks.

        1. Pitted

          1. Unlimited number of pits not more than 0.001 in. (0.025 mm) in depth, 0.062 in. (1.57 mm) in length and 0.010 in. (0.25 mm) in width.

          1. Accept

          2. Maximum of three pits for each 2.00 in. (50.8 mm) length of tubing; not more than 0.003 in. (0.075 mm) in depth, 0.062 in. (1.57 mm) in length, 0.010 in. (0.25 mm) in width and no other dents within 0.125 in. (3.175 mm).

          1. Accept

          3. Other than in Step or Step.

          1. Reject

        2. Dents

          1. If the depth is not more than five percent of the tube outside diameter and the length is not less than three times the depth

          1. Accept

          2. Other than Step.

          1. Reject

        3. Nicks

          1. As much as 0.0625 in. (1.588 mm) in length, 0.010 in. (0.254 mm) in width, and 0.005 in. (0.127 mm) in depth. Nicks must be no less than 12 in. (304.8 mm) apart and have no sharp edges.

          1. Accept

          2. Other than in Step.

          1. Reject

        4. Kinks

        1. Reject

    7. SUBTASK 72-42-20-220-076 Examine the Turbine Cooling Duct Sensing Tubes (04-040) for Leaks

    1. Install IAE 2P16251 Pressure test adapter 1 off onto the tube connector. Attach standard pressure test equipment to the adapter.

    2. Install IAE 2P16246 Pressure test plug 1 off onto the opposite end of the tube.

      3. Do a pressure test at 95 to 105 psig (655.00 to 723.95 kpa). Use clean air and CoMat 10-045 LEAK CHECK FLUID, BUBBLES-TYPE.

        1. Leaks

        1. Reject

    4. Remove the pressure test plug and the pressure test adapter from the ends of the tube.

    8. SUBTASK 72-42-20-220-076 Examine the Turbine Cooling Duct Sensing Tubes (04-040) for Leaks

    1. Install IAE 2P16252 Pressure test adapter 1 off onto the tube connector. Attach standard pressure test equipment to the adapter.

    2. Install IAE 2P16250 Pressure test plug 1 off onto the opposite end of the tube.

      3. Do a pressure test at 95 to 105 psig (655.00 to 723.95 kpa). Use clean air and CoMat 10-045 LEAK CHECK FLUID, BUBBLES-TYPE.

        1. Leaks

        1. Reject

    4. Remove the pressure test plug and the pressure test adapter from the ends of the tube.

    9. Figure: Turbine cooling duct sensing tube Inspection locations

    Turbine cooling duct sensing tube Inspection locations

    Figure: Turbine cooling duct sensing tube Inspection locations

    Turbine cooling duct sensing tube Inspection locations

Requirements After Job Completion

Follow-On Conditions

NONE
Manufacturer Code:03530
Enterprise Name:AMERICAN GAS AND CHEMICAL CO LTD
BU Name:AMERICAN GAS AND CHEMICAL CO LTD
Street:220 PEGASUS AVE
City:NORTHVALE
State:NJ
Zip Code:07647
Country:USA
Phone Number:1-201-767-7300, 1-800-526-1008
Fax Number:1-201-767-1741
Internet:www.amgas.com
Manufacturer Code:0AM53
Enterprise Name:IAE INTERNATIONAL AERO ENGINES AG
BU Name:NULL
Building:SUITE 400
Street:628 HEBRON AVENUE
City:GLASTONBURY
State:CT
Zip Code:06033
Country:USA
Manufacturer Code:03530
Supply Number:CoMat 10-045
Type:sp01
Supply Short Name:CoMat 10-045 LEAK CHECK FLUID, BUBBLES-TYPE
Supply Name:CoMat 10-045 LEAK CHECK FLUID, BUBBLES-TYPE
Specification Groups:
Doc NumberType
LEAK TEC 372E
Suppliers:
ManufacturerRemarks
03530
Manufacturer Code:0AM53
Tool Number:IAE 2P16246
Tool Name:IAE 2P16246 Pressure test plug
Manufacturer Code:0AM53
Tool Number:IAE 2P16250
Tool Name:IAE 2P16250 Pressure test plug
Manufacturer Code:0AM53
Tool Number:IAE 2P16251
Tool Name:IAE 2P16251 Pressure test adapter
Manufacturer Code:0AM53
Tool Number:IAE 2P16252
Tool Name:IAE 2P16252 Pressure test adapter