A recommendation about the brace position was made. “Conduct research to determine the most beneficial passenger brace position in airplanes with nonbreakover seats installed. If the research deems it necessary, issue new guidance material on passenger brace positions. (A-10-78)”. (Page 126. Section 4.0 Safety Recommendations. 4.1 New Recommendations). Discussion Definitions Use of the term was based on the review of accidents listed in the NTSB “serious accident” Report [2]. In that report, the Safety Board reviewers determined that passenger and crew survival was in the majority of Part 121 accidents up to the end of 1999. The “never threatened” Safety Board therefore focused on the in serious and determined that, as “survivability accidents” with all Part 121 accidents, most occupants survived the survivable [3]. “serious accidents” There is a difference between this NTSB term and definition and the ICAO terms and definitions. Annex 13 defines an accident as an with the ICAO’s “occurrence associated operation of an aircraft which, in the case of a manned aircraft, takes place between the time any person boards the aircraft with the intention of flight until such time as all such persons have disembarked, or in the case of an unmanned aircraft, takes place between the time the aircraft is ready to move with the purpose of flight until such time as it comes to rest at the end of the flight and the primary propulsion system is in which: a person is fatally or seriously shut down”, the aircraft sustains damage or or the aircraft is missing or is injured…, structural failure…, completely inaccessible. is defined as an involving circumstances A “serious incident” “incident indicating that there was a high probability of an ICAO does not define a accident”. “serious [5]. accident” The decision to use the NTSB term and definition because of the review of accidents for 1983 to 1999 listed in the NTSB 2001 report [3]. The same definition was therefore used for the review of accidents for 2000 to 2015. Results
A recommendation about the brace position was made. “Conduct research to determine the most beneficial passenger brace position in airplanes with nonbreakover seats installed. If the research deems it necessary, issue new guidance material on passenger brace positions. (A-10-78)”. (Page 126. Section 4.0 Safety Recommendations. 4.1 New Recommendations). Discussion Definitions Use of the term “serious accident” was based on the review of accidents listed in the NTSB Report [2]. In that report, the Safety Board reviewers determined that passenger and crew survival was “never threatened” in the majority of Part 121 accidents up to the end of 1999. The Safety Board therefore focused on the “survivability in serious accidents” and determined that, as with all Part 121 accidents, most occupants survived the “serious survivable accidents” [3]. There is a difference between this NTSB term and definition and the ICAO terms and definitions. ICAO’s Annex 13 defines an accident as an “occurrence associated with the operation of an aircraft which, in the case of a manned aircraft, takes place between the time any person boards the aircraft with the intention of flight until such time as all such persons have disembarked, or in the case of an unmanned aircraft, takes place between the time the aircraft is ready to move with the purpose of flight until such time as it comes to rest at the end of the flight and the primary propulsion system is shut down”, in which: a person is fatally or seriously injured…, the aircraft sustains damage or structural failure…, or the aircraft is missing or is completely inaccessible. A “serious incident” is defined as an “incident involving circumstances indicating that there was a high probability of an accident”. ICAO does not define a “serious accident” [5]. The decision to use the NTSB term and definition because of the review of accidents for 1983 to 1999 listed in the NTSB 2001 report [3]. The same definition was therefore used for the review of accidents for 2000 to 2015. Results
7.%20The%20Passenger%20Brace%20Position%20in%20Aircraft%20Accident%20Investigations%20.docx