Unconfirmed, but I heard that it was a privately owned Beechcraft Baron B58, on the USA "N" register.
Apparently "landed" at Elstree about 2000 BST, Saturday 3rd August. "Removed" from runway about 1000 BST Sunday.
No reported injuries.
Aussie Andy Don't let this put you off converting to retractables. Good training is essential as, unfortunately, a large number of "wheels-up" incidents are pilot error. Luckily such incidents result in fairly few injuries to passengers & crew, except severe wounding of the pilot's pride.
But injuries to the aircraft, usually comprise at least, 2 "frilly" propellers, with blade tips bent back, 2 shock-stopped (shock-loaded) engines that may have to be scrapped, damage to the aircraft's underside, & sometimes to the wings. For a small twin, can easily stack up to £10,000 to £30,000.