You are only required to report the following under NTSB 830 for aircraft under 12,500lbs:
1) Flight control system malfunction or failure; (2) Inability of any required flight crewmember to perform normal flight duties as a result of injury or illness; (3) Failure of structural components of a turbine engine excluding compressor and turbine blades and vanes; (4) In-flight fire; or (5) Aircraft collide in flight; (6) Damage to property, other than the aircraft, estimated to exceed $25,000 for repair (including materials and labor) or fair market value in the event of total loss, whichever is less.