Searchers using sonar continued scanning a more refined search area in Lake Erie Thursday, as they continue to recover debris from the plane which carried six people before disappearing from radar last month. At a press conference in Cleveland, city and airport officials confirmed that some of the wreckage brought up from the lake was part of the Cessna 525 Citation believed to be carrying Boardman High School graduates John and Suzanne Fleming, their sons, a neighbor and his daughter.