The National Transportation Safety Board (NTSB) database is not the only online source for curious aviators and researchers to review aviation accident and incident information. In addition to the safety board's extensive data collection, the FAA, the Flight Safety Foundation and the Aircraft Owners and Pilots Association maintain sites that all categorize aircraft accident and incident data, although somewhat differently.

The FAA's offering, called the Aviation Safety Information Analysis and Sharing (ASIAS) system, allows users to perform integrated queries across multiple databases, search an extensive warehouse of safety data, and display pertinent elements in an array of useful formats. The FAA site also includes a link to the Aviation Safety Reporting System's search engine, as well as a library of data related to Aircraft Life Cycles, Accident Threat Categories and Common Accident Themes. Some human factors data extends as far back as the 1960 mid-air collision between a Lockheed Constellation and a DC-8 over Staten Island N.Y.

The Flight Safety Foundation sponsors the Aviation Safety Network, a private, independent initiative founded in 1996, which covers accidents and safety issues related to airliners, military transport planes and corporate jets. ASN also houses an extensive photo collection relative to the database's research.

AOPA's extensive Aviation Safety Institute (ASI) database, offers considerable flexibility on search parameters, such as the ability to search for accidents simply by airport. AOPA's data is primarily focused on aircraft weighing less than 12,500 pounds.