Safety
ACSF: ASAP Reports Dip, Altitude Deviation Still Tops
Altitude deviation accounted for 16% of reports in first half
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The Air Charter Safety Foundation’s (ACSF) Aviation Safety Action Program (ASAP) drew 1,072 reports from 292 members in the first half of the year, with altitude deviation remaining the most common type of event. As far as event categories, altitude deviation accounted for 16% of the reports, with traffic proximity representing 13%, and coordination/communication issues at 11%.

A combination of altitude, course, and speed deviations collectively comprises 25% of reports, which ACSF said underscores the continued dominance of human factor errors. Airframe issues have contributed to about 7% of reports, and engine/powerplant issues are less than 1%.