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 72-00-32-050-022 LPC/Intermediate Case Module Components - Remove The Fuel Cooled Oil Cooler (FCOC), Removal-029
General
This TASK gives the procedure to remove the fuel cooled oil cooler (FCOC).
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.
For all parts identified in a different Chapter/Section/Subject, the applicable Chapter/Section/Subject comes before the Fig/item number.
Apply the approved CoMat 10-058 PENETRATING OIL before the removal of threaded parts. Let the parts soak before removal.
Discard all rubber seal rings removed in this procedure.
The FCOC removed in the procedure must have their maintenance completed, as given in the Sumitomo Precision Products Component Maintenance Manual (79-21-43).
Seal all openings when the components are disconnected to prevent contamination from unwanted material.
NOTE
Preliminary Requirements
Pre-Conditions
NONESupport Equipment
NONEConsumables, Materials and Expendables
| Name | Manufacturer | Part Number / Identification | Quantity | Remark |
|---|---|---|---|---|
| CoMat 10-058 PENETRATING OIL | 0AM53 | CoMat 10-058 |
Spares
NONESafety Requirements
NONEProcedure
Refer to Figure.

WARNING
DO NOT LET ENGINE FUEL STAY ON THE SKIN FOR A LONG TIME. THE FUEL IS POISONOUS AND CAN GO THROUGH YOUR SKIN AND INTO YOUR BODY.
CAUTION
DO NOT PUT FUEL THAT HAS BEEN DRAINED FROM THE ENGINE BACK INTO THE FUEL SYSTEM.Cut and discard the wire from the fuel drain plug Fuel Cooled Oil Cooler (FCOC) (79-21-43, 01-147).
Remove the fuel drain plug Fuel Cooled Oil Cooler (FCOC) (79-21-43, 01-147) and drain the fuel into the container.
Remove and discard the sealing ring Fuel Cooled Oil Cooler (FCOC) (79-21-43, 01-149).
SUBTASK 72-00-32-610-051 Drain the Fuel from the Fuel Cooled Oil Cooler
Refer to Figure.

WARNING
DO NOT GET ENGINE OIL ON YOUR SKIN FOR A LONG TIME. THE OIL IS POISONOUS AND CAN GO THROUGH YOUR SKIN AND INTO YOUR BODY.
CAUTION
DO NOT PUT OIL THAT HAS BEEN DRAINED FROM THE ENGINE BACK INTO THE OIL SYSTEM.Cut and discard the wire from the oil drain plug Fuel Cooled Oil Cooler (FCOC) (79-21-43, 01-157).
Remove the oil drain plug Fuel Cooled Oil Cooler (FCOC) (79-21-43, 01-157) and drain the oil into the container.
Remove and discard the sealing ring Fuel Cooled Oil Cooler (FCOC) (79-21-43, 01-159).
SUBTASK 72-00-32-610-052 Drain the Oil from the FCOC
Refer to Figure.
Disconnect the electrical connector 4017KS-A EEC Fan Harness (71-51-41, 01-005) from the fuel temperature thermocouple FUEL TEMPERATURE THERMOCOUPLE (73-35-15, 01-100), refer to the view at E.
Disconnect the electrical connector 4000 EL-A General Services Harness (71-51-43, 01-005) from the fuel filter differential pressure switch FUEL FILTER DIFF PRESSURE SWITCH (73-34-15, 01-010), refer to the view at D.
SUBTASK 72-00-32-040-051-A00 -A1 Series : Disconnect the Electrical Connectors
Refer to Figure.
Disconnect the electrical connector 4017KS-A EEC Fan Harness (71-51-41, 01-005) from the fuel temperature thermocouple FUEL TEMPERATURE THERMOCOUPLE (73-35-15, 01-100), refer to the view at E.
Disconnect the electrical connector 4000 EL-A General Services Harness (71-51-43, 01-005) from the fuel filter differential pressure switch FUEL FILTER DIFF PRESSURE SWITCH (73-34-15, 01-010), refer to the view at D.
SUBTASK 72-00-32-040-051-B00 -A5 Series : Disconnect the Electrical Connectors (Pre SBE 73-0071 and Pre SBE 71-0183)
Disconnect the electrical connector 4000 EL-A General Services Harness (71-51-43, 01-005) from the fuel filter differential pressure switch FUEL FILTER DIFF PRESSURE SWITCH (73-34-15, 01-010), refer to the view at D.
Remove the four nuts FUEL TEMPERATURE THERMOCOUPLE (73-35-15, 01-130 and FUEL TEMPERATURE THERMOCOUPLE 01-140) and disconnect the thermocouple harness from the thermocouple FUEL TEMPERATURE THERMOCOUPLE (73-35-15, 01-100).
Remove the two bolts FUEL TEMPERATURE THERMOCOUPLE (73-35-15, 01-110) that secure the thermocouple. Disconnect the harness ground connectors and refit the bolts.
Disconnect the terminal connectors from the FCOC fuel temperature thermocouple FUEL TEMPERATURE THERMOCOUPLE (73-35-15, 01-100), refer to the view at E, Figure.
SUBTASK 72-00-32-040-051-C00 -A5 Series : Disconnect the EEC Harness Connectors (SBE 73-0071 and SBE 71-0183)
Refer to Figure.
Cut and discard the wire and disconnect the fuel tubes Control Fuel Tubes (73-11-49, 25-100) and V2500-A5-73-11-49-21A-941A-D (73-11-49, 21-100) from the Fuel Diverter and Return Valve (FDRV).
SUBTASK 72-00-32-040-052 Disconnect the Fuel Tubes (73-11-49,25-100) and (73-11-49,21-100)
Remove the bolt Control Fuel Tubes (73-11-49, 05-133), the washer Control Fuel Tubes (73-11-49, 05-134) and the spacers Control Fuel Tubes (73-11-49, 05-138) at the clipping point 0795.
Remove the bolts EEC Fan Harness (71-51-41, 01-870) and EEC Fan Harness 01-878), the washers EEC Fan Harness (71-51-41, 01-871) and EEC Fan Harness 01-879) and the nuts EEC Fan Harness (71-51-41, 01-877) and EEC Fan Harness 01-885) at the clipping points 0789 and 0790.
Remove the bolts Control Fuel Tubes (73-11-49, 26-165) and Control Fuel Tubes 26-157), the washers Control Fuel Tubes (73-11-49, 26-166) and Control Fuel Tubes 26-158), the nuts Control Fuel Tubes (73-11-49, 26-172) and Control Fuel Tubes 26-164) and the spacer Control Fuel Tubes (73-11-49, 26-170) at the clipping points 0921 and 0922.
Remove the bolt Control Fuel Tubes (73-11-49, 26-173) and the washer Control Fuel Tubes (73-11-49, 26-174) at the clipping points 1072.
Position the container to catch all the fuel drain from the fuel tube Control Fuel Tubes (73-11-49, 26-100) to the FMU.
Remove the bolts Control Fuel Tubes (73-11-49, 26-106) that attach the tube Control Fuel Tubes (73-11-49, 26-100) to the FMU.
Remove and discard the sealing ring Control Fuel Tubes (73-11-49, 26-108) from the tube Control Fuel Tubes (73-11-49, 26-100) to the FMU.
Remove the bolts Control Fuel Tubes (73-11-49, 26-114) and the seal housing Control Fuel Tubes (73-11-49, 26-085) that attach the tube Control Fuel Tubes (73-11-49, 26-100) to the FDRV.
Remove and discard the sealing rings Control Fuel Tubes (73-11-49, 26-116) and Control Fuel Tubes 26-098) from the tube Control Fuel Tubes (73-11-49, 26-100) and the seal housing Control Fuel Tubes (73-11-49, 26-085).
Remove the tube Control Fuel Tubes (73-11-49, 26-100).
SUBTASK 72-00-32-040-053 Remove the Fuel Metering Unit (FMU) to FDRV fuel tube (73-11-49,26-100)
Drain the fuel in the IDG FCOC, refer to TASK 72-00-32-020-004.
SUBTASK 72-00-32-610-053 Drain the Fuel in the IDG FCOC
Refer to Figure.
Remove the bolts Control Fuel Tubes (73-11-49, 03-514) and the seal housing Control Fuel Tubes (73-11-49, 03-485) that attach the tube Control Fuel Tubes (73-11-49, 03-500) to the FDRV.
Remove and discard the sealing rings Control Fuel Tubes (73-11-49, 03-508) and Control Fuel Tubes 03-498) from the tube Control Fuel Tubes (73-11-49, 03-500) and the seal housing Control Fuel Tubes (73-11-49, 03-485).
Remove the bolts Control Fuel Tubes (73-11-49, 26-106) that attach the tube Control Fuel Tubes (73-11-49, 03-500) to the IDG FCOC.
Remove and discard the sealing ring Control Fuel Tubes (73-11-49, 26-108) from the tube Control Fuel Tubes (73-11-49, 03-500) to the IDG FCOC.
Remove the tube Control Fuel Tubes (73-11-49, 03-500).
SUBTASK 72-00-32-040-054 Remove the IDG FCOC to FDRV Fuel Tube (73-11-49,03-500)
Refer to Figure.
Remove the bolts OIL-PRESSURE OIL TUBES-ENGINE (79-21-49, 03-114) and OIL-PRESSURE OIL TUBES-ENGINE 03-506) that attach the tubes to the FCOC.
Disconnect the tubes OIL-PRESSURE OIL TUBES-ENGINE (79-21-49, 03-100) and OIL-PRESSURE OIL TUBES-ENGINE 03-500) and discard the sealing rings OIL-PRESSURE OIL TUBES-ENGINE (79-21-49, 03-098) and OIL-PRESSURE OIL TUBES-ENGINE 03-496).
SUBTASK 72-00-32-040-055 Disconnect the Oil Tube (79-21-49, 03-100 and 03-500)
Refer to Figure.
Remove the bolts Control Fuel Tubes (73-11-49, 02-106) that attach the tube Control Fuel Tubes (73-11-49, 02-100), to the FCOC.
Disconnect the tube Control Fuel Tubes (73-11-49, 02-100) and discard the sealing ring Control Fuel Tubes (73-11-49, 02-108).
SUBTASK 72-00-32-040-056 Disconnect the FCOC to LP Fuel Pump Element Fuel Tube (73-11-49,02-100)
Refer to Figure.
Remove the bolts Control Fuel Tubes (73-11-49, 02-514) the seal housing Control Fuel Tubes (73-11-49, 02-485) and the fire shield Control Fuel Tubes (73-11-49, 02-475) that attach the tube Control Fuel Tubes (73-11-49, 02-500) to the FDRV.
Remove and discard the sealing rings Control Fuel Tubes (73-11-49, 02-498) and Control Fuel Tubes 02-516) from the tube Control Fuel Tubes (73-11-49, 02-500) and the seal housing Control Fuel Tubes (73-11-49, 02-485).
Remove the tube Control Fuel Tubes (73-11-49, 02-500).
SUBTASK 72-00-32-040-057 Disconnect the LP Fuel Pump Element to FDRV Fuel Tube (73-11-49,02-500)
Refer to Figure.
Remove the bolts FUEL SYSTEM TUBES (RIGID)-POWER PLANT (73-11-47, 02-101) that attach the tube FUEL SYSTEM TUBES (RIGID)-POWER PLANT (73-11-47, 02-100) to the FDRV.
Disconnect the tube FUEL SYSTEM TUBES (RIGID)-POWER PLANT (73-11-47, 02-100) and discard the sealing ring FUEL SYSTEM TUBES (RIGID)-POWER PLANT (73-11-47, 02-108).
SUBTASK 72-00-32-040-058 Disconnect the FDRV to Aircraft Fuel Tube (73-11-47,02-100)
Refer to Figure.
Remove the bolts Control Fuel Tubes (73-11-49, 05-114) that attach the tube Control Fuel Tubes (73-11-49, 05-100) to the HP fuel pump.
Position the container to catch all the fuel drain from the tube Control Fuel Tubes (73-11-49, 05-100).
Remove the bolts Control Fuel Tubes (73-11-49, 05-106) that attach the tube Control Fuel Tubes (73-11-49, 05-100) to the FCOC.
Remove the tube Control Fuel Tubes (73-11-49, 05-100) and discard the sealing rings Control Fuel Tubes (73-11-49, 05-116) and Control Fuel Tubes 05-108).
SUBTASK 72-00-32-040-059 Remove the FCOC to HP Pump Fuel Tube (73-11-49,05-100)
Refer to Figure.
Disconnect the drain tube POWER PLANT-FUEL DRAIN TUBES-POWER PLANT (71-71-48, 01-100) from the FDRV and drain the remaining fuel into the container.
SUBTASK 72-00-32-040-060 Disconnect the Drain Tube (71-71-48,01-100)

WARNING
BE CAREFUL DURING THE REMOVAL OF FCOC AND FDRV. THEY WEIGH APPROXIMATELY 33 LB (15 KG).Remove the bolt V2500-A5-73-21-43-01A-941A-D (73-21-43, 01-355), the washer V2500-A5-73-21-43-01A-941A-D (73-21-43,01-392) and the nut Fuel Cooled Oil Cooler (FCOC) (79-21-43, 01-351) and remove the bonding strap Fuel Cooled Oil Cooler (FCOC) (79-21-43, 01-350) from the bracket of FCOC.
Pre SBE 79-0075 and 79-0076.
Remove the bolt Fuel Cooled Oil Cooler (FCOC) (79-21-43, 01-254), the washer Fuel Cooled Oil Cooler (FCOC) (79-21-43, 01-253) and nut Fuel Cooled Oil Cooler (FCOC) (79-21-43, 01-251) and remove the bonding strap Fuel Cooled Oil Cooler (FCOC) (79-21-43, 01-250) from the pin Fuel Cooled Oil Cooler (FCOC) (79-21-43, 01-115).
SBE 79-0075 and 79-0076.
Remove the bolt Fuel Cooled Oil Cooler (FCOC) (79-21-43, 01-254), the washer Fuel Cooled Oil Cooler (FCOC) (79-21-43, 01-253) and nut Fuel Cooled Oil Cooler (FCOC) (79-21-43, 01-310) and remove the bonding strap Fuel Cooled Oil Cooler (FCOC) (79-21-43, 01-250) from the FCOC Fuel Cooled Oil Cooler (FCOC) (79-21-43, 01-100).
Remove the upper mount.
Remove the bolts Fuel Cooled Oil Cooler (FCOC) (79-21-43, 01-110) , Fuel Cooled Oil Cooler (FCOC) 01-595 and Fuel Cooled Oil Cooler (FCOC) 01-435) and the nuts (79-21-43, 01-590 and 01-430) and the bush Fuel Cooled Oil Cooler (FCOC) (79-21-43, 01-440).
Pre SBE 79-0075 and 79-0076.
Remove the pin Fuel Cooled Oil Cooler (FCOC) (79-21-43, 01-115) from the FCOC.
SBE 79-0075 and 79-0076.
Remove the Precision bolt Fuel Cooled Oil Cooler (FCOC) (79-21-43, 01-102) from the FCOC.
SUBTASK 72-00-32-050-062 Remove the FCOC and FDRV
Remove the FDRV, refer to the TASK 72-00-32-050-013.
SUBTASK 72-00-32-050-063 Remove the FDRV
Figure: Drain plugs and electrical connectors
Drain plugs and electrical connectors

Figure: Drain plugs and electrical connectors SBE 73-0071 : (A5 Series) Remove the electrical connector 4017KS-A
Drain plugs and electrical connectors SBE 73-0071 : (A5 Series) Remove the electrical connector 4017KS-A

Figure: Fuel cooled oil cooler
Fuel cooled oil cooler

Figure: Fuel cooled oil cooler
Fuel cooled oil cooler

Figure: Fuel cooled oil cooler
Fuel cooled oil cooler

Figure: Fuel cooled oil cooler
Fuel cooled oil cooler

Figure: Fuel cooled oil cooler
Fuel cooled oil cooler

Figure: Fuel cooled oil cooler
Fuel cooled oil cooler

Figure: Fuel cooled oil cooler
Fuel cooled oil cooler

