DAMAGE HISTORY - According to an aircraft logbook entry for the Subject in 2006, the Subject Piper PA-31-350 Chieftain sustained significant structural damage in a hard landing, apparently in 2006. This log entry reported repairs to damaged inner bulkheads and supporting fuselage structures, including the stringers and skin. The wings, stabilizers, elevators, and ailerons were removed for repair. The landing gear was assumed to have been affected and repaired as well. The engines and propellers were reportedly overhauled in 2007, and the Subject was subsequently returned to service in an airworthy condition.