Article Photos: Plane carrying former OU quarterback Steve Davis experienced problems, says NTSB 2/75

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) ORG XMIT: INJR104