NTSB investigators either traveled in support of this investigation or conducted a significant amount of investigative work without any travel, and used data obtained from various sources to prepare this aircraft accident report.

THE PRIVATE PILOT AND A PILOT RATED PASSENGER WERE GOING TO PRACTICE SIMULATED INSTRUMENT FLIGHT. WITNESSES OBSERVED THE AIRPLANE'S RIGHT WING FAIL IN A DIVE AND CRASH. EXAMINATION OF THE WRECKAGE AND BODIES REVEALED THAT BOTH OCCUPANTS WERE PARTIALLY CLOTHED AND THE FRONT RIGHT SEAT WAS IN THE FULL AFT RECLINING POSITION. NEITHER BODY SHOWED EVIDENCE OF SEATBELTS OR SHOULDER HARNESSES BEING WORN. EXAMINATION OF THE INDIVIDUALS' CLOTHING REVEALED NO EVIDENCE OF RIPPING OR DISTRESS TO THE ZIPPERS AND BELTS.