I am not suprised this happens, Igo to Newport Beach alot. I live near Balboa Island (if you know where that is) and I see smallaircraft or helicopters flying around alot. Once in while a aircraft for Orange County-John Wayne airport flies over too.
I think this a problem all over Southern California or the Los Angels there is too many small airports with big airports. Long Beach airport isn't that far from John-Wayne. Everytime i go to work on I-405 i cross the flight path for the Orange County airport and i see small single engine aircraft flying by 737's or 757's all the time.
But Ithat is very scary to know most of them don't have radio's. I don't want a plane crashing on my house or near it.
But I think the aicraft don't have the air-to-air radio's is because they are ultra-light aircraft, but i am not sure.
The Orange County-John Wayne airport i think is one of the best in the country.