Under EHEST the analysis team is called the European Helicopter Safety Analysis Team (EHSAT). This working group of EHEST performs the first step in the process: the review of occurrences. So far, nine regional teams have been created to analyse helicopter accidents and derive recommendations for interventions. It is estimated that the current nine EHSAT regional analysis teams cover more than 90% of the civil European helicopter fleet. The analysis results of the different regional teams are consolidated on a European level. Terms of Reference EHSAT ToR
- Additional data on helicopter safety in Europe can be found in the EASA Annual Safety Reviews (ASR), published annually on the EASA website.
EHEST Analysis of 2006-20010 European Helicopter Accidents
EHEST published in 2015 this analysis report of 2006-2010 European Helicopter Accidents: EHEST Analysis Report of 2006-2010 European Accidents
This report is a follow-up on the first report published in 2010 addressing 2000-2005 European Helicopter accidents (see below). It covers the analyses performed by the EHSAT Regional Reams of accidents that occurred in the years 2006-2010. It also provides comparisons between the two time periods 2000-2005 and 2006-2010 as well as some deeper analysis of results covering the entire time period 2000-2010.
Comparison with the analysis of 2000-2005 accidents have globally confirmed that the issues identified in this first period continue to be of concern and that the safety improvement actions decided and developed based on the first analysis period were still valid.
A few differences have been identified though and additional analyses have been conducted. These will help shaping up the future priorities of the European Helicopter Safety Implementation Team (EHSIT).
This report will also contribute defining the helicopter Safety Risk Portfolio (SRP) managed by EASA, which in turn serves as a basis to develop the helicopter section of the European Aviation Safety plan (EASp).
EHEST Analysis of 2000-2005 European Helicopter Accidents
EHEST published in 2010 this analysis report of 2000-2005 European Helicopter Accidents: EHEST Analysis Report of 2000-2005 European Accidents
The EHEST analysis consolidates analyses of European wide helicopter accident data. The accident dataset consists of 311 helicopter accidents analysed by the regional EHSAT teams up to 31 March 2010.
The top 3 identified areas for the Standard Problem Statements are
• Pilot judgment & actions
• Safety Culture/Management
• Ground duties
The use of the HFACS taxonomy by the EHSAT provided a complementary perspective on human factors. In 78% of the accidents, at least one HFACS factor was identified. In most accidents unsafe acts or preconditions for unsafe acts were identified. In fewer accidents reports issues related to supervision or organisational influences were captured. The possibility of identifying those factors is very much dependent on the depth of the accident investigation performed and the accident data available.
For both the Standard Problem Statements and HFACS taxonomies, different patterns were observed for Commercial Air Transport, Aerial Work and General Aviation.
Most Intervention Recommendations (IRs) were identified in the areas of Operations & Safety Management/Culture, Training/Instructional, and Regulatory/Standards/ Guidelines.
The European Helicopter Safety Implementation Team (EHSIT) was launched in February 2009. The team uses the accident analyses and the intervention recommendations produced by the EHSAT to develop safety enhancement strategies and action plans. In 2009 the EHSIT defined a process to aggregate, consolidate, and prioritise the intervention recommendations identified in this report and also defined safety strategies and action plans.
To address the top intervention recommendation categories identified by the EHSAT, the EHSIT has launched three Specialist Teams on Operations and SMS, Training, and Regulation. These EHSIT Specialist Teams are in the process of developing detailed action plans and delivering safety promotion material and tools of benefit for the industry, in particular for small operators and General Aviation. EHSIT results will be communicated to the helicopter community via the Communications Sub-Group. Also the EHSAT will continue analysing accidents in order to monitor possible changes in accident scenarios over time. The team will also be involved in the measuring of results and effectiveness of safety improvements.
Fatal accidents in Helicopter Commercial Air Transport worldwide (for max take-off mass over 2250kg)