EC135 YAW SAS?
Our mechanic is at wits end on an "intermittant" YAW SAS issue. With increasing frequency the system is kicking off while in cruise flight (more frequently in gusty winds) however it is kicking off in all phases of flight.
The aircraft will yaw 5-10 degrees and then the system will kick off line.
He has replaced all major components including the wire harness in the tailboom.
Any suggestions to trouble shooting?
ACFT S/N is 0015 and has 6800 hours total time on the airframe.