Welcome to CAROL

CAROL is NTSB's query tool for information about investigations and recommendations.

Select a search type below to get started.

Basic Investigation & Recommendation Search

Create a basic search using select fields. Includes all NTSB recommendations (1967-present) and data from all NTSB aviation investigations (1962-present) and surface mode investigations (highway, marine, railroad, pipeline, and hazmat) from 2010-present.

Aviation Investigation Search

Create a more specific search using aviation fields. Includes aviation investigation data from 1962-present.

Custom Search Builder

Create a custom search using a combination of investigation and/or recommendation data fields.

Published Searches

View published searches of recommendations or investigations covering specific issue areas. Published searches show dynamic data reflecting current information each time you open them.

For assistance conducting searches, contact data@ntsb.gov.
For assistance with or questions about CAROL, contact safti@ntsb.gov.

Additional Resources

NTSB Monthly Aviation Accident Lists, and Dashboard of Aviation Accidents by State or Region

Aviation accidents sorted by date, updated daily

    NTSB Downloadable Aviation Datasets

    Datasets containing all aviation investigation data from 1962 to present, updated monthly. (Microsoft Access formatted.)

      NTSB Statistical Reviews

      The official census of US civil aviation accidents, annual statistical reviews of US civil aviation accidents, and other data products.

        NTSB Research Reports

        Safety research reports for all transportation modes.