TASK 75-32-49-200-101 HPC Bleed Control Air Tubes - Examine, Inspection-001

DMC:V2500-A0-75-32-4900-00A-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 75-32-49-200-101 HPC Bleed Control Air Tubes - Examine, Inspection-001

Effectivity

FIG./ITEM

PART NO.

01-100

5A9043

01-100

6A6200

01-500

5A9067

01-500

6A6215

02-100

5A9068

02-100

6A5337

02-500

5A9139

02-500

6A6191

03-100

5A9147

03-500

5A9146

03-500

6A6194

03-500

6A9042

04-100

5A9071

04-100

6A5330

04-100

6A6212

04-100

6A6222

04-500

5A8743

04-500

6A5331

04-500

6A6223

04-500

6A9041

05-100

5A8783

07-100

5A9148

07-500

5A9079

07-500

5A9150

08-100

6A5334

08-100

6A6220

08-500

5A8746

08-500

6A5332

08-500

6A6221

09-100

5A9140

09-500

5A9145

10-100

5A9074

10-100

6A6218

10-500

5A8769

10-500

6A6219

11-100

5A9149

11-500

5A9077

11-500

6A5338

11-500

6A6216

12-100

5A8745

12-100

6A6217

13-100

5A9044

13-100

6A2162

13-100

6A6005

13-100

6A6198

13-500

5A8776

14-100

5A9046

14-100

6A2163

14-100

6A6013

14-100

6A6199

14-100

6A9044

14-500

5A8755

15-100

5A9306

15-100

6A6012

15-100

6A6197

15-500

5A9050

15-500

6A6020

16-100

5A9307

16-100

6A6009

General

This TASK gives the procedure for the inspection of the HPC bleed air tubes. For the other HPC bleed air tubes and parts, refer to Inspection-000 TASK 75-32-49-200-100 and the Component Maintenance Manual - Miscellaneous Mechanical Components (CMM-MECHV2500- 1IA) Inspection-000 TASK 75-32-49-200-400.

Fig./item numbers in parentheses in the procedure agree with those used in the IPC. Only the primary Fig./item numbers are used. For the Service Bulletin alpha variants refer to 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 they are examined. Refer to Cleaning-000 TASK 75-32-49-100-100.

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 must have a crack test is given in the relevant SUBTASK. Do the crack test before the part is visually examined.

Do not discard a 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 must be discarded can be held although no repair is available. The repair of a discarded part could be shown to be necessary at a subsequent date.

All parts must be examined to make sure that all the repairs are completed satisfactorily.

Practices and processes referred to in the procedure by the TASK/SUBTASK number are in the SPM.

References

Refer to the SPM for data on these items:

Definitions of Damage - Specified Types of Damage, SPM TASK 70-02-02-350-501.

Inspection Policy and 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:

Methods 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 75-32-49-230-051 Examine the HPC Bleed Air Tubes for Cracks

    1. Clean the parts. Refer to Cleaning-000 TASK 75-32-49-100-100.

      2. Do the crack test on the parts that are given in the Paragraph. Use the applicable penetrant inspection procedure.

        1. Air tube assembly. Refer to SPM TASK 70-23-02-230-501.

          1. Cracked

          1. SPM, VRS7001 (Repair-001) TASK 70-35-24-300-501.

    2. SUBTASK 75-32-49-220-051 Examine the HPC Bleed Air Tube Surface

    1. Refer to Figure.

      2. Examine the tube surface at location 1.

        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 (50.80 mm) length of tubing; not more than 0.003 in (0.075 mm) in depth, 0.062 in (1.57 mm) in length and 0.010 in (0.25 mm) in width and no other dents within 0.125 in (3.175 mm).

          1. Accept

          3. Other than Step or Step

          1. Repair, VRS1681 (Repair-001) TASK 75-32-49-300-001 or SPM, VRS7001 (Repair-001) TASK 70-35-24-300-501.

        2. Dented

          1. In area in less than 0.500 in. (12.70 mm) from the tube fittings or bends.

          1. SPM, VRS7001 (Repair-001) TASK 70-35-24-300-501.

          2. In areas other than Step, of large smooth area if the maximum diameter is ten times the depth and bore is not decreased by more than ten percent at any one point.

          1. Accept

          3. In areas other than Step, of small smooth area, that is up to 0.125 sqin. (80,0 sqmm) if depth does not more than 0.025 in. (0.64 mm)

          1. Accept

          4. More than in Step or Step

          1. SPM, VRS7001 (Repair-001) TASK 70-35-24-300-501.

        3. Nicked

          1. On the outer surface of a bend.

          1. Repair, VRS1681 (Repair-001) TASK 75-32-49-300-001.

          2. In areas other than Step, any nicks.

          1. Repair, VRS1681 (Repair-001) TASK 75-32-49-300-001.

        4. Galled

          1. On the outer surface of a bend.

          1. Repair, VRS1681 (Repair-001) TASK 75-32-49-300-001.

          2. In areas other than Step, any galls.

          1. Repair, VRS1681 (Repair-001) TASK 75-32-49-300-001.

    3. SUBTASK 75-32-49-220-052 Examine the HPC Bleed Air Tube Bore

    1. Refer to Figure.

      2. Examine the tube bore at location 2.

        1. Plugged

        1. Clear with dry air blast.

    4. SUBTASK 75-32-49-220-053 Examine the HPC Bleed Air Tube Ferrule

    1. Refer to Figure.

      2. Examine the tube ferrule at location 3.

        1. Sealing face

          1. Galled

          1. Repair, VRS1681 (Repair-001) TASK 75-32-49-300-001.

    5. SUBTASK 75-32-49-220-054 Examine the HPC Bleed Air Tube Coupling Nut

    1. Refer to Figure.

      2. Examine the tube coupling nut at location 4.

        1. Threads

          1. Pick-up

          1. Repair, VRS1681 (Repair-001) TASK 75-32-49-300-001.

          2. Crossed

          1. SPM, VRS7001 (Repair-001) TASK 70-35-24-300-501.

          3. Stripped

          1. SPM, VRS7001 (Repair-001) TASK 70-35-24-300-501.

    6. SUBTASK 75-32-49-220-055 Examine the HPC Bleed Air Tube Union Adaptor

    1. Refer to Figure.

      2. Examine the tube union adaptor at location 5.

        1. Threads

          1. Pick-up

          1. Repair, VRS1681 (Repair-001) TASK 75-32-49-300-001.

          2. Crossed

          1. SPM, VRS7001 (Repair-001) TASK 70-35-24-300-501.

          3. Stripped

          1. SPM, VRS7001 (Repair-001) TASK 70-35-24-300-501.

        2. Sealing face

          1. Galled

          1. Repair, VRS1681 (Repair-001) TASK 75-32-49-300-001.

    7. SUBTASK 75-32-49-220-056 Examine the HPC Bleed Air Tube Lug

    1. Refer to Figure.

      2. Examine the tube lug at location 6.

        1. Distorted, small distortion can be removed if cracks are not caused.

        1. Repair, VRS1681 (Repair-001) TASK 75-32-49-300-001.

    8. SUBTASK 75-32-49-220-057 Examine the HPC Bleed Air Tube Connector

    1. Refer to Figure.

      2. Examine the tube connector at location 7.

        1. Threads

          1. Pick-up

          1. Repair, VRS1681 (Repair-001) TASK 75-32-49-300-001.

          2. Crossed

          1. SPM, VRS7001 (Repair-001) TASK 70-35-24-300-501.

          3. Stripped

          1. SPM, VRS7001 (Repair-001) TASK 70-35-24-300-501.

        2. Sealing face

          1. Galled

          1. Repair, VRS1681 (Repair-001) TASK 75-32-49-300-001.

    9. Figure: Locations On The Hpc Bleed Air Tube

    Locations On The Hpc Bleed Air Tube

Requirements After Job Completion

Follow-On Conditions

NONE