(a) Anywhere. An altitude allowing, if a power unit fails, an emergency landing without undue hazard to persons or property on the surface.
...So if you are over a very very flat area (salt flats? dry lake bed?) you could fly 1 foot above the surface! ...Engine fails? Just hit the flaps and set it down.
So I guess what this says is that if you do a low pass when nobody is around to see it is basically okay by the FAA because no person or property is around to be endangered...Like you said, just don't have your friend standing there to film it
I believe (A) is a catchall to make it legal fly **anywhere* outside sparsely populated (AKA in town, over cities) lower than 500 feet AGL to land on a street should an engine fail. That's how I interpret it anyway.
(C) is the one that allows you to fly lower than 500 in sparsely populated areas (or water surfaces) with the caveat steer clear of things mentioned in reference.
It seems strange that low passes over a runway would be frowned upon...Maybe you are landing at a remote airport and want to make sure the runway surface is suitable to land, or are just making sure there are no animals or obstructions on the runway.
Couldn't you just claim it was a go-around?
In my eyes, be kinda hard to say your intent is a go-around (aborted landing) you are doing 200 to 300 knots over the runway AND if the gear were in the up and locked position one foot above the ground. Intent
to land just doesn't appear to be there.