Lycoming TEO-540-C1A Maintenance Manual page 460

Fault ID 136
Fault Exhaust Gas Temperature cyl 1 slew
Description rate fault
Fault ID 137
Fault Exhaust Gas Temperature cyl 2 slew
Description rate fault
Fault ID 138
Fault Exhaust Gas Temperature cyl 3 slew
Description rate fault
Fault ID 139
Fault Exhaust Gas Temperature cyl 4 slew
Description rate fault
Fault ID 140
Fault Exhaust Gas Temperature cyl 5 slew
Description rate fault
Fault ID 141
Fault Exhaust Gas Temperature cyl 6 slew
Description rate fault
Fault ID 142
Fault Exhaust Gas Temperature cyl 7 slew
Description rate fault
Fault ID 143
Fault Exhaust Gas Temperature cyl 8 slew
Description rate fault
This fault indicates the temperature sensor slew rate is greater than the calibrated
Root Cause
maximum.
1. Run the engine in accordance with the engine and aircraft maintenance manuals. Is the fault active? *
If yes, go to step 3. If no, go to step 2.
2. Using the FST, download active and service fault logs, then clear fault logs and monitor engine
operation for the fault to repeat.
3. Swap the sensor from the channel giving the fault with another sensor in a different cylinder and run the
engine. Did the fault move with the sensor? If yes, replace the sensor per the "Sensor Replacement
Procedures" section in Chapter 72-70. If no, complete a continuity test of the harness from the harness
sensor connector to the ECU connector using the engine system schematic. If the continuity check fails,
isolate to affected harness by disconnecting the firewall connection, then contact Lycoming Engines. If
the continuity checks good, replace the ECU.
*NOTE: This fault could be caused by another EGT fault. If there are any other active EGT faults on the
same cylinder go to troubleshooting steps for the corresponding EGT fault.
Appendix D
Page 430
Fault Group 18
Fault Group 18
Fault Group 18
Fault Group 18
Fault Group 18
Fault Group 18
Fault Group 18
Fault Group 18
Troubleshooting Steps for Faults 136 thru 143
TEO-540-C1A Engine Maintenance Manual
[FAULT: exhaust gas temperature
Fault Name
cyl 1 slew rate]
Fault Lamp
[FAULT: exhaust gas temperature
Fault Name
cyl 2 slew rate]
Fault Lamp
[FAULT: exhaust gas temperature
Fault Name
cyl 3 slew rate]
Fault Lamp
[FAULT: exhaust gas temperature
Fault Name
cyl 4 slew rate]
Fault Lamp
[FAULT: exhaust gas temperature
Fault Name
cyl 5 slew rate]
Fault Lamp
[FAULT: exhaust gas temperature
Fault Name
cyl 6 slew rate]
Fault Lamp
[FAULT: exhaust gas temperature
Fault Name
cyl 7 slew rate]
Fault Lamp
[FAULT: exhaust gas temperature
Fault Name
cyl 8 slew rate]
Fault Lamp
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November 2018