© 2018 Avco Corporation. All Rights Reserved
Appendix D
November 2018
Page 485
TEO-540-C1A Engine Maintenance Manual
Fault ID
311
Fault Group
39
Fault Name
[FAULT: EEC time invalid]
Fault
Description
EEC time invalid fault*
Fault Lamp
None
Root Cause
This fault indicates EEC time is invalid possibly due to a data logger fault or EEPROM
memory corruption.
Troubleshooting Steps
1.
If equipped with a data logger, continue step 1, if not, continue to step 2. Are there any active data
logger faults? If no, go to step 2. If yes, go to step 3.
2.
With Ignition switch in OFF position, remove ECU power by pulling the ECU circuit breaker. Wait 10s
before resetting. Is fault active? If no, go to step 4. If yes, go to step 5.
3.
Inspect data logger and cabling for damage. If damage is noted, repair damage in accordance with
aircraft maintenance manual. If data logger is damaged, replace.
4.
Clear Service faults using the FST by following the steps outlined in the “Access the Field Service
Tool” section in Appendix C or the latest revision of
SSP-118.
5.
Set ignition switch to on, do not start engine, complete step 4. Is fault still active? If no, sequence
complete. If yes, replace the ECU.
*NOTE: This fault does not cause any performance or operational limitations.
Fault ID
312
Fault Group
40
Fault Name
[FAULT: TBO Clear Corrupt
Record]
Fault
Description
TBO clear corrupt fault*
Fault Lamp
None
Root Cause
This fault indicates one or more corrupt records were found in the TBO fault clearing
history block
Troubleshooting Steps
1.
With Ignition switch in OFF position, remove ECU power by pulling the ECU circuit breaker. Wait 10s
before resetting. Is fault active? If no, go to step 2. If yes, go to step 3.
2.
Clear Service faults using the FST by following the steps outlined in the “Access the Field Service
Tool” section in Appendix C or the latest revision of
SSP-118.
3.
Set ignition switch to on, do not start engine, complete step 2. Is fault still active? If no, sequence
complete. If yes, replace the ECU.
*NOTE: This fault does not cause any performance or operational limitations.
Fault ID
313
Fault Group
40
Fault Name
[FAULT: TBO Clear Full]
Fault
Description
TBO clear full fault*
Fault Lamp
None
Root Cause
This fault indicates the clearing history block is full
Troubleshooting Steps
1.
With Ignition switch in OFF position, remove ECU power by pulling the ECU circuit breaker. Wait 10s
before resetting. Is fault active? If no, go to step 2. If yes, go to step 3.
2.
Clear Service faults using the FST by following the steps outlined in the “Access the Field Service
Tool” section in Appendix C or the latest revision of
SSP-118.
3.
Set ignition switch to on, do not start engine, complete step 2. Is fault still active? If no, sequence
complete. If yes, replace the ECU.
*NOTE: This fault does not cause any performance or operational limitations.
