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 71-71-49-700-101 Fuel Drain Tubes - Do A Test, Testing-001
Effectivity
FIG/ITEM | PART NO. |
01-100 | 740-5276-503 |
01-100 | 745-5276-501 |
01-500 | 740-5277-503 |
01-500 | 740-5277-505 |
01-500 | 740-5277-507 |
01-500 | 740-5277-509 |
02-100 | 740-5279-505 |
02-100 | 740-5279-507 |
02-100 | 740-5279-509 |
02-100 | 745-5279-501 |
02-100 | 745-5279-503 |
02-500 | 740-5278-503 |
02-500 | 740-5278-505 |
02-500 | 740-5278-507 |
02-500 | 740-5278-509 |
02-500 | 740-5278-511 |
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 71-71-49-100-100 and Inspection-000 TASK 71-71-49-200-100.
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 | Pneumatic pressure testing rig | ||
| MS21913-5 Blanking plug | 0AM53 | MS21913-5 | ||
| Blanking-cap | LOCAL | AS15825 |
Consumables, Materials and Expendables
NONESpares
NONESafety Requirements
NONEProcedure
Install the applicable Blanking-cap to the 'T' connectors on the tube (02- 500).
Install the applicable Blanking-cap to the tubes.
SUBTASK 71-71-49-780-051 Prepare the Tubes (01-100, 01-500, 02-100 and 02-500) 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 71-71-49-200-100.
Decrease the pressure in the tube to zero.
Disconnect the tube from the outlet of the pneumatic pressure testing rig.
Remove the Blanking-cap(s) from the tube.
SUBTASK 71-71-49-780-052 Do the Pneumatic Pressure Test on the Tubes (01-100, 01-500, 02-100, 02- 500)
Figure: Pneumatic Pressure Testing Rig
Pneumatic Pressure Testing Rig
