2021 ASRS incident reports

4,571 voluntary NASA ASRS incident reports for events in 2021.

By flight phase

Anomaly type	Reports
Deviation discrepancy procedural published material policy	2,920
Deviation discrepancy procedural clearance	1,164
Aircraft equipment problem critical	1,145
Deviation discrepancy procedural far	828
Atc issue all types	794
Aircraft equipment problem less severe	732
Conflict nmac	525
Inflight event encounter cftt cfit	461
Inflight event encounter weather turbulence	369
Deviation discrepancy procedural maintenance	341

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