1. ICAO, Traffic growth and airline profitability were highlights of air transport in 2016,
https://www.icao.int/Newsroom/Pages/traffic-growth-and-airline-profitability-were-highlights-of-air-transport-in-2016.aspx
. Accessed 23 Sept 2019
2. BOEING (2016) Statistical summary of commercial jet airplane accidents worldwide operations|1959–2015
3. Transport Safety Bureau of Canada, Runway excursion Northern Thunder Bird Air Inc, Beechcraft 1900 C (2014) C-GCMZ Blue River, British Columbia, 17 March 2012, Aviation Investigation Report A12P0034
4. Australian Safety Transport Board (2005) Investigation number: 200501819—airbus A340, ZS-SLA, Airbus Industry A340-212 landed short of Rwy
5. FAA (2016) Performance Based Navigation (PBN), Navigation Strategy 2016