[quote]Perhaps an error in landing direction[/quote]
That's the local consensus. I have seen this many
times - when the windsock is exactly opposite what
you are expecting, frequently pilots read it backwards,
especially when they glance at it in the air from overhead -
they see what they are expecting. Almost.
Not long ago, I saw an experienced pilot taxi and take
off from an uncontrolled airport - perfectly downwind.
Again, the windsock was perfectly reversed from what
it usually is. He had to taxi right by two different
windsocks, but he saw what he was expecting to see.
Fortunately the runway was so long, it really didn't
make any difference - he got away with his mistake,
as is the usual case.
I have told this story many times before ... my father
soloed in a Harvard in 1951 at Trenton. No radios,
just a wind direction indicator. Took off, and while
he was gone, the wind perfectly reversed. He landed
downwind, and what took off in the opposite direction
and just cleared the top of his Harvard was an enraged
C R Slemon in a twin which pulled up frantically to avoid
a head-on collision.
Not everyone tries to kill the next Chief of Air Staff.
[url=
https://en.wikipedia.org/wiki/Roy_Slemon]
https://en.wikipedia.org/wiki/Roy_Slemon[/url]
Not sure anyone remembers him any more. Eccentric,
shall we say.