A National Transportation Safety Board investigator and South Bend firefighters survey, early Monday, March 18, 2013, the scene of Sunday's fatal plane crash, along Iowa Street in South Bend, Ind. (AP Photo/South Bend Tribune, James Brosher)

The front end of a Hawker Beachcraft Premier jet sits in a room of a home on Iowa Street in South Bend, Ind., Sunday, March 17, 2013. Authorities say a private jet apparently experiencing mechanical trouble crashed resulting in injuries. Federal Aviation Administration spokesman Roland Herwig says the Beechcraft Premier I twin-jet had left Tulsa, Okla.'s Riverside Airport and crashed near the South Bend Regional Airport on Sunday afternoon. (AP Photo/South Bend Tribune, Mike Hartman)

South Bend police and fire officials examine a home where a a plane crash occurred near the South Bend Regional Airport Sunday, March 17, 2013 in South Bend, Ind. The private jet apparently experiencing mechanical trouble crashed in the northern Indiana neighborhood, resulting in injuries and striking three homes, authorities and witnesses said. (AP Photo/Joe Raymond)

South Bend police and fire officials examine a home where a a plane crash occurred near the South Bend Regional Airport Sunday, March 17, 2013 in South Bend, Ind. The private jet apparently experiencing mechanical trouble crashed in the northern Indiana neighborhood, resulting in injuries and striking three homes, authorities and witnesses said. (AP Photo/Joe Raymond)

South Bend police and fire officials examine the scene of a plane crash near the South Bend Regional Airport Sunday March 17, 2013 in South Bend, Ind. The private jet apparently experiencing mechanical trouble crashed in a northern Indiana neighborhood, resulting in injuries and striking three homes, authorities and witnesses said. (AP Photo/Joe Raymond)

South Bend police and fire officials examine the scene of a plane crash near the South Bend Regional Airport Sunday March 17, 2013 in South Bend, Ind. The private jet apparently experiencing mechanical trouble crashed in a northern Indiana neighborhood, resulting in injuries and striking three homes, authorities and witnesses said. (AP Photo/Joe Raymond)

South Bend firefighters work at the scene, Monday, March 18, 2013, where a plane crashed on Sunday, near the South Bend Regional Airport, in South Bend, Ind. The plane damaged homes, as well as causing injuries. (AP Photo/Joe Raymond)

South Bend police remove a resident from her home near the scene of a plane crash near the South Bend Regional Airport Sunday March 17, 2013 in South Bend, Ind. The private jet apparently experiencing mechanical trouble crashed Sunday in a northern Indiana neighborhood, resulting in injuries and striking three homes, authorities and witnesses said. (AP Photo/Joe Raymond)

South Bend firefighters work at the scene, Monday, March 18, 2013, where a plane crashed on Sunday, near the South Bend Regional Airport, in South Bend, Ind. The plane damaged homes, as well as causing injuries. (AP Photo/Joe Raymond)

South Bend police and fire officials examine a home where a a plane crash occurred near the South Bend Regional Airport Sunday March 17, 2013 in South Bend, Ind. The private jet apparently experiencing mechanical trouble crashed in a northern Indiana neighborhood, resulting in injuries and striking three homes, authorities and witnesses said. (AP Photo/Joe Raymond)

South Bend Fire Department Assistant Chief John Corthier answers questions about a plane crash that occurred near the South Bend Regional Airport Sunday March 17, 2013 in South Bend, Ind. The private jet apparently experiencing mechanical trouble crashed in a northern Indiana neighborhood, resulting in injuries and striking three homes, authorities and witnesses said. (AP Photo/Joe Raymond)