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NASA ASRS Aviation Incident Reports

Voluntary incident reports from the NASA Aviation Safety Reporting System — the world’s largest confidential aviation safety database. Reports cover pilots, air traffic controllers, mechanics, cabin crew, and dispatchers.

240,558Total reports
2026Latest year
20Anomaly categories

Top anomaly categories

Anomaly typeReports
Deviation discrepancy procedural published material policy93,242
Deviation discrepancy procedural clearance56,877
Aircraft equipment problem critical51,543
Deviation discrepancy procedural FAR49,010
Other unspecified43,801
ATC issue all types30,439
Aircraft equipment problem less severe30,229
Conflict airborne conflict22,258
Deviation track heading all types21,526
Inflight event encounter weather turbulence17,900
Conflict ground conflict14,358
Conflict near mid-air collision (NMAC)13,955
Deviation altitude excursion from assigned altitude13,663
Deviation altitude overshoot11,401
Deviation discrepancy procedural maintenance11,219
Ground incursion runway10,475
Critical9,084
Inflight event encounter controlled flight toward/into terrain8,001
Airspace violation all types6,961
Inflight event encounter loss of aircraft control6,884

Top aircraft families

Aircraft familyReports
Boeing 737 (all variants)23,552
Boeing 7578,932
Bombardier CRJ (all variants)7,347
Boeing 7676,100
Airbus A320 (all variants)6,091
Boeing 7274,280
Airbus A3193,555
Boeing 777 (all variants)2,873
Boeing 7472,306
Airbus A321 (all variants)1,696

By year

Source: NASA Aviation Safety Reporting System (public domain). Reports are voluntary submissions and are not verified by NASA.

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