Workbench Hazard citations Occurrence citations Effects Exposure data NTSB data FAA data Severity Frameworks Trend analysis Risk matrix Performance targets Report

Aviation safety workbench

Scope of historic analysis

The selected years, exposure and operating parts apply to every data source in the tool — hazard citations, NTSB events and the analysis frameworks — so all results describe the same period and the same kind of flying.

FromToExposure

Events counted: All operations

Part 121Scheduled airlinesPart 125Large private aircraftPart 129Foreign air carriersPart 135Commuter and on-demandPart 133Rotorcraft external loadPart 137Agricultural aircraftPart 91General operating rules, including 91KPart 61 / 141Flight instructionPart 105Parachute jumpingPart 103UltralightsPart 107Small unmanned aircraftPart 437Experimental spaceflightOther or unspecifiedPublic use, military and events with no part recorded

The switches start out matching the exposure you selected. Turn any operating part on or off to add or remove its incidents and accidents from the counts.

Include incident rate estimateOnly NTSB-investigated events record a cause, so FAA incident reports never reach the risk results on their own. With this on, the historic risk adds an estimate of those incidents using the recorded ratio of incidents to accidents, spread across severity levels the way all determinable incidents in the period were.

Hazards

—0 top-level categories

Hazard citations

—Probable-cause counts by hazard

Occurrence citations

—Cited occurrences in NTSB reports

Occurrences

—NTSB investigated incidents and accidents in the United States

FAA incidents

—FAA AIDS accident and incident records

Occurrence types

—Incident and accident types