Secondary seat stop modification not mandatory
Despite being categorised as mandatory for the pilot’s seat by the aircraft manufacturer, a secondary seat stop modification designed to prevent uncommanded rearward pilot seat movement and potential loss of control was not fitted to VH-FRT, nor was it required to be under United States or Australian regulations.
The ATSB recommends that the Civil Aviation Safety Authority takes action to strengthen incorporation of Cessna Single Engine Service Bulletin SEB07-5 Secondary seat stop modification.
Research has identified that rear‑facing occupants of parachuting aircraft have a higher chance of survival when secured by dual-point restraints, rather than the standard single-point restraints that were generally fitted to Australian parachuting aircraft.
The ATSB recommends that the Australian Parachute Federation, in conjunction with the Civil Aviation Safety Authority, takes action to increase the usage of dual point restraints in parachuting aircraft that are configured for rear facing occupants.
Classification of parachuting operations
Classification of parachuting operations in the private category did not provide comparable risk controls to other similar aviation activities that involve the carriage of the general public for payment.
The ATSB recommends that the Civil Aviation Safety Authority introduce risk controls to parachuting operations that provide increased assurance of aircraft serviceability, pilot competence and adequate regulatory oversight.