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
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Common Information
TASK 73-22-50-200-001 PB Sensor Tubes and Hoses - Examine the EEC PB Inlet Port, Inspection-001
General
This TASK gives the procedure to inspect the EEC PB inlet port.
NOTE
Preliminary Requirements
Pre-Conditions
NONESupport Equipment
NONEConsumables, Materials and Expendables
| Name | Manufacturer | Part Number / Identification | Quantity | Remark |
|---|---|---|---|---|
| CoMat 02-126 LOCKWIRE | LOCAL | CoMat 02-126 |
Spares
NONESafety Requirements
NONEProcedure
Cut and discard the lockwire from the flexible hose connector.
Disconnect the flexible hose from the EEC.
Disconnect the flexible hose.
Cut and discard the lockwire from the union. Remove the union from the EEC sensor inlet port and discard the seal ring.
NOTE
Engines which have SBE 73-0185 or SBE 73-0186 or SBE 73- 0220 incorporated do not have a sensor screen.Pre SBE 73-0185 or Pre SBE 73-0186 or Pre SBE 73-0220 only: Use a 10X magnifying glass and a white light to visually examine the sensor screen. If you can see white powder contamination on the sensor screen, replace the EEC.
SBE 73-0185 or SBE 73-0186 or SBE 73-0220 only: No inspection is necessary. Go to the Step.
Examine the EEC burner pressure sensor inlet.
NOTE
Make sure that all the PB sense line pipes are connected correctly. Joints that leak let moisture into the lines and increase PB problems.Install a new seal ring on the union.
Install the union in the EEC PB inlet port with the external cone end toward the flexible hose.
Torque the union to between 168 and 181 lbf in (18.98 and 20.45 Nm).
Safety the union with CoMat 02-126 LOCKWIRE.
Install and connect the flexible hose connector to the union.
Torque the connector to between 142 and 150 lbf in (16.04 and 16.95 Nm).
Safety the union with CoMat 02-126 LOCKWIRE.
Install the union and the flexible hose.
SUBTASK 73-22-50-220-001 Examine the EEC PB Inlet Port