Atlas / ASRS
NASA · Aviation Safety Reporting System
The "almost happened" universe.
NASA's ASRS is the voluntary, confidential reporting system pilots, controllers, and dispatchers use to share safety-relevant events that didn't reach the NTSB. ~10,000 reports filed every month. 2.3 million on record since 1976. We mirror the public curated topic sets here — verbatim, with NASA's caveats intact.
Topic sets — each is ~50 de-identified records on one safety theme
- Air Carrier (FAR 121) Flight Crew Fatigue Reports 50
- Altitude Deviations 50
- Air Traffic Controller Reports 50
- Bird or Animal Strike Reports 50
- Cabin Smoke, Fire, Fumes, or Odor Incidents 50
- Checklist Incidents 50
- Commuter and Corporate Flight Crew Fatigue Reports 50
- Commuter and GA Icing Incidents 50
- Controlled Flight Toward Terrain 50
- CRM Issues 50
- Emergency Medical Service Incidents 50
- Flight Attendant Reports 50
- Fuel Management Issues 50
- General Aviation Flight Training Reports 50
- Global Positioning (GPS) Reports 50
- Inflight Weather Encounters 50
- Maintenance Reports 50
- Multi-Engine Turbojet Aircraft Upsets Incidents 50
- Near Midair Collision Incidents 50
- Non-Tower Airport Incidents 50
- Parachutist / Aircraft Conflicts 50
- Passenger Electronic Devices 50
- Passenger Misconduct Reports 50
- Penetration of Prohibited Airspace 50
- Pilot / Controller Communications 50
- RNAV Arrival Reports 50
- Rotary Wing Aircraft Flight Crew Reports 50
- Runway Incursions 50
- Unmanned Aircraft Systems (UAS) Reports 50
- Wake Turbulence Encounters 50
How to use this corpus
Each record is a first-person account from a pilot, controller, or maintainer about something that almost went wrong. NASA strips identifying info — names, company, specific times — and tags every report with anomaly classes and contributing factors. The reports are not investigated by NASA, the FAA, or NTSB; they're calibrated as the reporter's lived experience.
On aircraft type pages and airport pages elsewhere in Atlas, we cross-link ASRS records that mention the same make/model or airport — so when you're researching a 172 or KBOS, you see the near-miss universe alongside the accident record.
Authoritative source: NASA Aviation Safety Reporting System, Database Online ↗. Reports represent the reporter's perspective and cannot be used to infer prevalence within the National Airspace System.