The National Transportation and Safety Board maintains an online database of airplane accident files. The database of reports contains information for the United States and its territories starting with 1962.
Preliminary reports are usually available within days of an accident. Factual information is updated as investigations continue. General instructions for using the interactive searches are available from the Web site. Also available are monthly lists of investigations and completed investigations.
A sample search by place name and date range located 18 accident and incident reports in PDF format. The reports are concise, easy to understand, and comprehensive.