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 71-71-48-700-101 Fuel Drain Tubes - Do A Test, Testing-001
Effectivity
FIG/ITEM | PART NO. |
|---|---|
01-100 | 740-5790-503 |
01-100 | 740-5790-505 |
01-500 | 740-5791-503 |
02-100 | 740-5261-503 |
02-100 | 740-5261-505 |
02-500 | 740-5700-501 |
02-500 | 740-5700-505 |
02-500 | 740-5700-507 |
02-500 | 745-5700-503 |
03-100 | 740-5702-505 |
03-100 | 740-5702-507 |
03-400 | 740-5688-509 |
03-400 | 740-5688-511 |
03-400 | 740-5688-513 |
03-400 | 745-5688-501 |
03-700 | 740-5692-503 |
03-700 | 740-5692-505 |
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 fuel drain tubes must be cleaned and inspected before this pressure test, Refer to Cleaning-000 TASK 71-71-48-100-100 and Inspection-000 TASK 71-71-48-200-100.
The Test Equipment Specification
To do the test on the fuel drain tubes use equipment equivalent to that shown in Figure.
Preliminary Requirements
Pre-Conditions
NONESupport Equipment
| Name | Manufacturer | Part Number / Identification | Quantity | Remark |
|---|---|---|---|---|
| Pneumatic pressure testing rig | LOCAL | |||
| As15825 Blanking-cap | LOCAL | As15825 |
Consumables, Materials and Expendables
NONESpares
NONESafety Requirements
NONEProcedure
Install the blanking cap to one end of the tube.
SUBTASK 71-71-48-780-051 Prepare the Tubes (01-100, 01-500, 02-100 and 02-500, 03-100, 03-400 and 03-700) for the Pneumatic Pressure Test
Connect the tube to the outlet of the Pneumatic pressure testing rig.
Put a pressure of 14.5 psi (100 kPa) in the tube.
Put the tube in the water tank.
Let the pressure stay in the tube for 1 minute.
Make sure that the tube has no leaks. If the tube has leaks, reject the tube. Refer to Inspection-000 TASK 71-71-48-200-100.
Decrease the pressure in the tube to zero.
Disconnect the tube from the outlet of the Pneumatic pressure testing rig.
Remove the blanking cap from the tube.
SUBTASK 71-71-48-780-052 Do the Pneumatic Pressure Test on the Tubes (01-100, 01-500, 02-100, 02- 500, 03-100, 03-400 and 03-700)
Figure: Pneumatic Pressure Testing Rig
Pneumatic Pressure Testing Rig
