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 72-32-58-700-101 No. 1 Bearing Compartment Scavenge Oil Tube - Do A Test, Testing-001
General
The practices and processes referred to in the procedure by the TASK numbers are in the SPM.
All test pressures referred to in the procedure are gage pressure.
NOTE
Preliminary Requirements
Pre-Conditions
NONESupport Equipment
| Name | Manufacturer | Part Number / Identification | Quantity | Remark |
|---|---|---|---|---|
| Hydraulic pressure testing rig | LOCAL | Hydraulic pressure testing rig | ||
| IAE 2J13303 Adapter | 0AM53 | IAE 2J13303 | 1 off | |
| IAE 2J13319 Adapter | 0AM53 | IAE 2J13319 | 1 off |
Consumables, Materials and Expendables
| Name | Manufacturer | Part Number / Identification | Quantity | Remark |
|---|---|---|---|---|
| CoMat 10-077 APPROVED ENGINE OILS | LOCAL | CoMat 10-077 |
Spares
NONESafety Requirements
NONEProcedure
Attach IAE 2J13303 Adapter 1 off and IAE 2J13319 Adapter 1 off to both sides of the tube to be made a test.
Connect a dry compressed air supply from a system which incorporates a pressure gage and regulator valve, to the IAE 2J13319 Adapter 1 off on the tube.
Put fully the tube in to a tank of water and pressurize to 14.5 psi (100 kPa).
Keep the pressure for a minimum of one minute, and examine the tube for signs of leakage, particularly at welded or repaired area.
Isolate air supply, release the pressure and remove the tube from the tank.
Remove the special tools and dry the tube with dry air if the pressure test is not to be effected immediately.
Put a cap on all holes and store in suitable protective container.
SUBTASK 72-32-58-790-051 Leak Test
CAUTION
SET THE SUITABLE SAFETY GUARDS IN POSITION AROUND THE TUBE WHEN HYDRAULIC PRESSURE APPLIES TO PRESSURE TEST.DO NOT GET ENGINE OIL ON YOUR SKIN FOR A LONG TIME. THE OIL IS POISONOUS AND CAN GO THROUGH YOUR SKIN AND IN TO YOUR BODY.NOTE
Leak test must be carried out before the tube is made pressure test,refer to Step.Do the hydraulic pressure test with CoMat 10-077 APPROVED ENGINE OILS.Attach IAE 2J13303 Adapter 1 off and IAE 2J13319 Adapter 1 off to both sides of the tube to be made a test.
Connect Hydraulic pressure testing rig 1 off to the IAE 2J13319 Adapter 1 off on the tube.
Open the bleed valve and apply minimum hydraulic pressure to bleed air from the tube. Close the bleed valve when an air free fluid flow is seen.
Slowly and continuously pressurize the tube to 79.0 psi (545 kPa).
Keep the pressure for a minimum of one minute, and examine the tube for signs of leakage, particularly at welded or repaired area.
Isolate the hydraulic supply, release pressure and remove the test equipment from the tube.
SUBTASK 72-32-58-780-051 Pressure Test
Clean the tube, refer to Cleaning - 001 TASK 72-32-58-100-100.
SUBTASK 72-32-58-110-051 Clean the Tube
Put an approved cap on all holes and store in suitable protective container.
SUBTASK 72-32-58-550-051 Store the Tubes