The ceiling was still 1700 overcast, so he (atleast) started the approach
in the clouds.

If he was on final approach, inside the marker, his heading should
have been 240; bu tone witness reported seeing him flying NE. He must
have been below the ceiling, in VMC, at that time.

Perhaps that report is wrong; they often are. If it is correct, it is
very puzzling since he was within sight of the airport.

Sorry, I won't be able to respond to any questions; I'm leaving the
country tomorow for six weeks.

vince norris