A system controlling the pitch of a doomed Cessna Citation II malfunctioned minutes before the jet and the organ transplant team it carried dived nose first into Lake Michigan, the pilot reported in a distress call moments before the crash. Runaway trim, the problem identified Tuesday by National Transportation Safety Board investigator John Brannen, would have severely limited the flight crew's ability to keep the plane horizontal. In a previous instance of runaway trim involving a similar Cessna jet, the crew reported fighting desperately to keep the plane from diving nose down, according to NTSB records.
         That Cessna 525 belly-flopped into Penn Cove, off Coupeville, Wash., on July 22, 2003. The pilot and co-pilot escaped and were rescued by a boater. The crash into Lake Michigan about 4:04 p.m. Monday had much more tragic results. As of late Tuesday, only remains had been found of the two pilots and the four members of the University of Michigan Survival Flight team. The pilots, Dennis Hoyes and Bill Serra, and the transplant team members, David Ashburn, Richard Chenault II, Richard Lapensee and Martin Spoor, are believed to have died in the crash.
          Roughly 50 divers from the Milwaukee Fire Department, Police Department and sheriff's office searched for the bodies and wreckage in about 20 to 53 feet of water late Monday and through Tuesday morning. Large boulders on the floor of the lake have limited the effectiveness of the recovery groups' sonar units, said Capt. Bruce Jones, the U.S. Coast Guard commander in charge of the recovery operation. Divers concluded their search for the victims and the plane about 1 p.m. Tuesday because of high waves in the search area, about a mile and a half off McKinley Marina. Wreckage had washed up as far south as St. Francis and Cudahy, carried by wind and currents. So far, the largest piece of debris found was about one square foot.