Originally Posted by
layman54
According to post 1346 the accident helicopter was higher and to the west of the position of the typical helicopter flying that route. Was this a slight error that in this case was fatal?
Although the data in post 1346 does distinguish between day time and night time, it doesn't (nor probably can't) highlight which flights were adjusted by ATC, e.g. track this, sight that, pass behind, track direct, etc. If the use of Route 4 was simply pilots doing their own thing ie a single direction route without any ATC inputs then the tracking difference might be interesting. In this case, it could highlight an issue, perhaps not.