bdk wrote:
Maybe the transponder was removed for service? Or maybe the impact was severe enough to knock the battery loose or cause the transponder to not function.
1) The ELT (Emergency Locator Transmitter) is required for flight of the aircraft he was flying. It is also required to be in proper working order. Steve is fastidious about making sure his equipment is in good working order as is Baron Hilton, the owner of the aircraft in question (via the Flying M Ranch).
2) I have not heard of an occasion where an impact was so severe with a light aircraft that the ELT did not survive and activate as designed. The ELT is built with the same survivability as a Black Box and many of the same materials, so it is very likely that if there is no ELT transmission, there was not an impact great enough to trigger it. One must remember that most ELT activations that CAP receives from AFRCC (Air Force Rescue Command Center) are inadvertent activations from a hard landing that did no damage to the airplane. So if you can activate the ELT just by making a hard landing or slamming a door shut and no damage results to the airplane, then it's highly unlikely that if there's not an ELT being picked up, that the plane is most likely intact.
3) (Unrelated to the quoted item) Mr. Fossett did tell several people where he was going. He was going south to check out several dry lakes for a possible land speed record attempt in the future. The problem is that there are a lot of dry lakes there and with his airplane having 5 hours of fuel aboard, it creates a large search area. Without an ELT transmission, CAP and other search assets will just have to search foot-by-foot from the air.