TASK 36-21-49-700-101 Bleed Air Pressure Indicating Air Tubes - Do A Test, Testing-001

DMC:V2500-A0-36-21-4900-00A-362A-C|Issue No:003.00|Issue Date:2019-05-01

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 36-21-49-700-101 Bleed Air Pressure Indicating Air Tubes - Do A Test, Testing-001

Effectivity

FIG/ITEM

PART NO.

01-100

740-5089-501

01-500

740-5644-503

01-500

740-5644-505

01-500

740-5644-507

01-500

745-5644-501

01-500

745-5644-503

01-500

745-5644-505

01-500

745-5644-507

01-600

745-5166-501

02-110

740-5092-501

02-500

740-5093-501

02-725

745-5097-501

02-725

745-5097-503

General

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 pressure indicating tubes must be cleaned and inspected before this pressure test, Refer to Cleaning-000 TASK 36-21-49-100-100 and Inspection-000 TASK 36-21-49-200-100.

The Test Equipment Specification

To do the test on the pressure indicating tubes use equipment equivalent to that shown in Figure and Figure.

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NameManufacturerPart Number / IdentificationQuantityRemark
Hydraulic pressure testing rigLOCAL
Pneumatic pressure testing rigLOCAL
Blanking plugLOCALMS21913

Consumables, Materials and Expendables

NONE

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 36-21-49-780-051 Do the Hydraulic Pressure Test on the Tubes (01-100, 01-500, 01-600, 02-110, 02-500 and 02-725)

    1. Connect the tube to the outlet of the hydraulic pressure testing rig and the bleed valve adapter. Make sure that the bleed valve is open.

    2. Make sure that the pressure control valve is set to zero.

    3. Start the hydraulic pressure testing rig.

    4. Slowly turn the pressure control valve until the fluid comes out of the bleed valve.

    5. Close the bleed valve.

    6. CAUTION

      DO NOT GO PAST THE TEST PRESSURE SHOWN BELOW FOR THE RELATIVE TUBE. IT CAN CAUSE DAMAGE TO THE TUBE. IF THE PRESSURE IN THE TUBE GETS TO MORE THAN THAT SHOWN BELOW, REJECT THE TUBE.

      Increase the pressure in the tubes (01-100, 01-500, 02-110 and 02-500) to 504 psi (3475 kPa).

    7. Let the pressure stay in the tube for 2 minutes.

    8. Make sure that the tube has no leaks. If the tube has leaks, reject the tube, Refer to TASK 36-21-49-200-100.

    9. Decrease the pressure in the tube to zero.

    10. Stop the hydraulic pressure testing rig.

    11. Open the bleed valve.

    12. Disconnect the tube from the outlet of the hydraulic pressure testing rig and the bleed valve adapter.

    13. WARNING

      BE CAREFUL WHEN YOU USE COMPRESSED AIR. PUT ON PROTECTIVE CLOTHING AND GOGGLES.

      Remove unwanted fluid from the tube with clean, dry compressed air.

    2. SUBTASK 36-21-49-780-052 Prepare the Tubes (01-100, 01-500, 01-600, 02-110, 02-500 and 02-725) for the Pneumatic Pressure Test

    1. Install the applicable blanking plugs to one end of the tubes.

    3. SUBTASK 36-21-49-780-053 Do the Pneumatic Pressure Test on the Tubes (01-100, 01-500, 01-600, 02-110, 02-500 and 02-725)

    1. Connect the tube to the outlet of the pneumatic pressure testing rig.

    2. Put the pressure of 14.5 psi (100 kPa) in the tube.

    3. Put the tube in the water tank.

    4. Let the pressure stay in the tube for 1 minute.

    5. Make sure that the tube has no leaks. If the tube has leaks, reject the tube, Refer to TASK 36-21-49-200-100.

    6. Decrease the pressure in the tube to zero.

    7. Disconnect the tube from the outlet of the pneumatic pressure testing rig.

    8. Remove the pressure blanking cap from the tube.

    4. Figure: Hydraulic Pressure Testing Rig

    Hydraulic Pressure Testing Rig

    Figure: Pneumatic Pressure Testing Rig

    Pneumatic Pressure Testing Rig

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Revised effectivity table and subtask titles. (18VN802 CV19-0125)

Manufacturer Code:LOCAL
Enterprise Name:LOCALLY SUPPLIED
Manufacturer Code:LOCAL
Tool Number:MS21913
Tool Name:Blanking plug
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