I can only post on Geocities and have little bandwidth to post, so perhaps someone can post it for me.
I inverted the photo on my computer and the writing reads:
V070-1911
-076 (or G) MN00
With these numbers, the tile should be traced to its exact location. It came from Kerens, Texas, 65 miles SE of Dallas and another tile is in Rice, Texas, 45 miles S of Dallas on I-45. If these tile came from under the left wing, that would place its failure at the top of the debris field.
I would be very interested to hear if anyone finds a tile in the states of New Mexico, Nevada or California. That could shed some light on this indeed and indicate that something catastrophic was happening much earlier than initially thought.