Originally Posted by
Maoraigh1
He stated that he did not recall making a radio call on UNICOM, but did utilize his on board Traffic Collision Avoidance System (TCAS) system while on approach.
No need to screw around with old-fashioned radios when you've got a fancy TCAS to look at, right? Wow.
Witnesses in the airport lounge heard the 150 pilot's UNICOM call(s), so all the 525 had to do was listen out. They couldn't be bothered to even tune in and listen?
NTSB prelim report