What the Answers on This Page Rest On
The answers draw on three kinds of material. The first is federal statutes in Title 49 of the U.S. Code, which governs transportation and the NTSB, and in Title 46, which contains the Death on the High Seas Act. The second is the general framework of Federal Aviation Administration (FAA) regulations in Title 14 of the Code of Federal Regulations, the source of terms such as "Part 135". The third is general principles of U.S. tort law, the body of law that covers civil claims for injury and death.
Where a federal statute is cited, the answer follows its text. Here is one example. Under 49 U.S.C. § 1154, subsection (b), "No part of a report of the Board, related to an accident or an investigation of an accident, may be admitted into evidence or used in a civil action for damages resulting from a matter mentioned in the report." That sentence is quoted rather than paraphrased because it shapes how every civil aviation case is built.
The family-assistance rules after certain airline accidents come from 49 U.S.C. § 1136. The Death on the High Seas Act is named in 46 U.S.C. § 30301, which states that the chapter "may be cited as the 'Death on the High Seas Act'". This page describes those laws only as far as their text goes.
State law is handled differently. Because no state's rule is everyone's rule, the answers say where state law varies. That includes limitation periods, comparative fault (rules that may reduce a claim by a share of fault) and contributory fault (stricter rules in some places). It also includes wrongful-death damages and who may bring a claim. The page does not pick one state and treat it as the national rule.
About any specific accident, the page says nothing about cause. An NTSB investigation moves through stages. A preliminary report sets out early facts. A final report states the NTSB's probable cause, which is the agency's own determination of what it found caused the accident. The status of a given investigation, whether it is open, at a preliminary report or at a final report, is something only the NTSB's own pages state. Until a final report exists, no official cause has been stated.
Where the material behind an answer is thin, the answer says less rather than filling the gap. That matters to you because a confident-sounding general answer can be wrong for a particular flight. A careful, partial answer is more useful than a complete-looking one built from guesswork.