Thanks, i would appreciate the careflight address. the tail rotor issue was dealt with by new composite t/r blades which i have fitted. I would be suprised if they were producing a low freq vibe but concious of history.
At the moment koalas are on a 10 hr inspection for the FCU, its conceivable that may be the cause.
Driptray-email address on its way.
Thanks so far.
MK, not me.