Two guys were very lucky. They should have bought lottery tickets that night. That was the only fear I had when flying - a midair collision. Very easy to happen when two planes are converging when both are flying in the same direction at the same altitude into the sun or somehow find themselves on top of each other in the pattern. Most collisions happen on a clear day with perfect visibility.
My daughter went to Embry-Riddle in Prescott. Went on to fly charters for 13 years, got married, quit flying, got two grandkids.
The summer before she started, they had a mid-air of two ER planes on approach to Love Field.
I took her to get checked in, then went off and found the safety instructor.
Old 'nam F-4 pilot.
I asked to see the report.
He said there wasn't one, as there were no fatalities.
I looked him in the eye and said "bullshXt".
Dead silence. Finally he said, go to the library, ask the librarian for a specific folder they keep behind the desk, and give his name.
Yeah, it was there.
Instructor, right seat, student left seat (172's?) observer student in back, on approach over the wash.
ANOTHER student on solo in a 172 came in above and settled on top of them. The three below could not see back and up through the wings and wing root, one above didn't see over the engine and through the floor.
Prop of upper plane cut through the cowling, chopped into the top of one of the cylinders, causing a very rough run. Instructor said "my controls", took over, realized handling was poor, power was poor, set it down on wheels in the wash...which dug in and in went over the nose onto it's back. Only injury then occurred when back seat student released belt without bracing and banged his head.
Upper plane, with bent prop, pulled up, clear, and made a safe landing on the field.
There was some issue with the tower calling out to observe aircraft on approach in front of them...and there was one just touching down...and both upper and lower planes thought that was it. Nobody said there were other aircraft on approach.
I wrote down the tail numbers, then went back to the safety instructor, thanked him, and he showed me the cylinder...was on the shelf the prop blade had cut, behind him.
He told me I was the ONLY parent who had EVER asked about the incident, and he was surprised at how forceful I was to get the info.
I told him it was MY daughter and I was going to make D@MN sure it was as safe as it could be.
Then I went and found the aircraft. The upper plane that landed safely was repaired and returned to service. I looked it over..carefully. No dents or creases. Doors and covers fit nicely.
The lower plane that inverted in the wash they wrote off, was in their accident training area for students to see if they could figure out what had happened to cause the damage.
So, yeah, poo happens.
Some time I'll tell you about my interaction couple of years later with the Chief Instructor.
I told him in no uncertain terms he did NOT want me to come down there right now.