Originally Posted by
Uplinker
Can TCAS or similar be fitted to helicopters, and if so, would the system work in an aircraft on the ground?
Yes it can. I'm not sure how commonly it would be found in an EC130, and below 1000' AGL it is TA only so it's not like a TCAS RA would have prevented this as it occurred at too low an altitude, but the situational awareness gained from a visual display of nearby traffic might have been enough.
A helicopter fitted with TCAS would still show the pilot traffic information while on the ground - any WOW inputs simply inhibit TCAS alerts but the reception and display of traffic information still occurs regardless of the switch status.