1000 WORDS TWA 800 accident – FBI/NTSB jurisdiction Reports on accidents should include probable causes, how the accident could have been avoided, and the error chain. Concepts or procedures should be illustrated with examples from the history of safety investigations. Pictures, graphics or data should help to illustrate the theme place in the appendix. Original sources – the accident report – are required. Clear, grammatical exposition in your own words. Sentences should be complete, paragraphs logical, and structure sound, with an introductory paragraph, factual information, and explanation.