JACDEC

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The abbreviation JACDEC , or JACDEC, stands for Jet Airliner Crash Data Evaluation Center . The authors Jan-Arwed Richter and Christian Wolf offer a flight safety ranking of airlines as a service under this name.

History and offer

The Hamburg- based JACDEC was launched in 1989 as a project by two students. The main focus of their data collection and interpretation is the collection and processing of aircraft accident information in civil aviation. All hull losses and critical incidents in global flight operations are listed there. Among other things, they derive information on flight safety from the database they have built up since 1991.

JACDEC also provides background information for journalists and editors for current research on aviation safety issues. The author Jan-Arwed Richter works, among other things, as a freelancer for the aviation magazine Aero International and provides text contributions, pictures and illustrations on air accidents for daily newspapers and publishing houses.

Airline rankings and accident statistics for individual airlines , countries and aircraft types can be found on the English-language website . For a fee, you can also get in-depth security expertise on certain airlines there.

statistics

The JACDEC database serves as the basis for statistics on the frequency of losses for the various aircraft types and airlines. A JACDEC-specific statistical measure was the JACDEC Safety Index , which existed until 2017 (until 2005: JACDEC Safety Rating ), which should enable the flight safety of airlines to be compared. The basic idea of ​​the index was to relate deaths and total aircraft losses since 1973 to the number of kilometers flown with revenue- generating passengers ( Revenue Passenger Kilometers , RPK). An airline with no fatal accidents and no total aircraft loss had the index value 0.00 and 0.01, respectively. The higher the decimal number, the worse the index value.

This index was modified in 2010 and added one decimal place. All accident data were now limited to the last 30 years before the respective annual index was calculated. The previous setting for 1973 was omitted. In addition, membership of an airline in the IATA 's global IOSA security program was included in the security assessment . The safety index should serve the passenger as an indication of the differences in the accident statistics between the airlines. Therefore, the JACDEC Safety Index only included flights with paying passengers on board. Freight, training, test and transfer flights were not taken into account. Accidents on the ground in which no passengers were on board were also not taken into account.

In 2013 the index was modified again. The number of serious incidents compared to total losses and the assessment of the transparency of the country-specific authorities for aircraft accident investigations were added as new factors .

In 2017, the previous index was discarded and the JACDEC Safety Risk Index created a new basis for assessing the safety of aviation companies, which is not comparable to the previous indices. The index value, which is now shown as a percentage to two decimal places, includes 33 parameters which are divided into the three categories of accidents and incidents, environmental influences (e.g. infrastructure and weather) and operational factors (e.g. fleet age). The best possible value that can be achieved would therefore be 100.00%.

JACDEC statistics are quoted in newspapers and in advertising. Detailed safety descriptions for individual airlines are available for a fee.

JACDEC publishes the annual safety ranking in the aviation magazine Aero International. By 2017, the 60 largest airlines were published by passenger kilometers, from 2018 the 100 largest.

criticism

Note: The criticism partly refers to the Safety Index valid until 2017 . Environmental factors and route profiles are taken into account in the new Safety Risk Index , for example .

  • The JACDEC index allows only limited statements about the current safety standard of an airline. For example, had the airline Adria Airways with a safety index of 15.721 a very bad value, although they flew accident-free for over 30 years.
  • The JACDEC index does not take into account any question of guilt in accidents. The statistical accident history does not differentiate between the causes of the accident. Whether technical failure, human error, weather influences or terrorism , all accidents are recorded as the same risk for the passenger.
  • The calculation method chosen by JACDEC for the index means that an airline that scraps a severely damaged aircraft after an aircraft accident with no fatalities as a total loss receives a worse safety index than if the damaged machine had been repaired and continued to operate.
  • If an airline is taken over by another, such as B. was the case with Lauda Air and Austrian Airlines , the accident record of the airline taken over is completely eliminated. The crash of Lauda Air flight 004 therefore had no effect on the Austrian Airlines index.
  • The Safety Index did not take into account whether an airline mainly flies short or long haul flights. While a long-haul aircraft spends many hours every day in statistically safe cruise flight, a short-haul aircraft makes numerous take-offs and landings in the same period, which involve a much higher risk of accidents.
  • The JACDEC index only takes flight performance and accidents from the last 30 years into account. All previous total losses or fatalities of the airlines are eliminated.
  • Newly founded companies were automatically given the best value of 0,000, which made comparisons with established airlines difficult.

Web links

Individual evidence

  1. ↑ a b c Airline Ranking. In: jacdec.de. JACDEC, 2020, accessed on April 23, 2020 (English).
  2. ↑ JACDEC AIRLINER SAFETY STATISTICS. In: jacdec.de. JACDEC, January 2005, archived from the original on February 4, 2005 ; accessed on April 23, 2020 (English).
  3. ↑ JACDEC's AIRLINER SAFETY STATISTICS: AIRLINES. In: jacdec.de. JACDEC, August 2006, archived from the original on September 2, 2006 ; Retrieved on April 23, 2020 (English, here as an example for 2006 in the last column of the table).
  4. ↑ a b JACDEC's AIRLINER SAFETY STATISTICS: AIRLINES. In: jacdec.de. JACDEC, January 2010, archived from the original on February 14, 2010 ; accessed on April 23, 2020 (English, for index methodology see footnote 3 there).
  5. ^ About Safety Index. In: jacdec.de. JACDEC, January 2, 2014, archived from the original on January 18, 2015 ; accessed on April 23, 2020 (English).
  6. ↑ a b Ranking + Risk Index. In: jacdec.de. JACDEC, 2017, accessed on April 23, 2020 .
  7. ↑ JACDEC report: The safest airlines worldwide. In: sueddeutsche.de . February 4, 2007, accessed April 23, 2020 .
  8. ↑ Jacdec Ranking: These are the safest airlines in the world. In: Spiegel Online . January 4, 2019, accessed April 23, 2020 .
  9. ↑ Lars Ophüls: These are the 15 most insecure airlines and airlines worldwide in the 2020 ranking. In: handelsblatt.com . January 16, 2020, accessed April 23, 2020 .
  10. ^ ITB Berlin. (No longer available online.) Formerly in the original ; accessed on April 23, 2020 .  ( Page no longer available , search in web archives )@1@ 2Template: Toter Link / www.virtualmarket.itb-berlin.de
  11. ↑ Experts declare Emirates the safest airline in the world in 2019. In: aerointernational.de. January 2, 2020, accessed on April 23, 2020 (here as an example for the year 2019).
  12. ↑ JACDEC's AIRLINER SAFETY STATISTICS: AIRLINES. In: jacdec.de. JACDEC, August 2010, archived from the original on July 18, 2011 ; accessed on April 23, 2020 (English, Lauda Air here without index).
  13. ^ Accident in São Paulo: Landing is the Achilles' heel of aviation. In: Spiegel Online . July 18, 2007, accessed April 23, 2020 .
  14. ↑ JACDEC's AIRLINER SAFETY STATISTICS: AIRLINES. In: jacdec.de. JACDEC, February 2010, archived from the original on July 18, 2011 ; accessed on April 23, 2020 (English, see for example the value for Germania , founded in 2007).