SEATTLE — Horizon Air’s head of flight operations recently warned of a lax safety culture among the airline’s pilots and has called for urgent action to prevent a serious air accident. 

The Seattle Times reports that the Seattle-based airline’s Vice President of Flight Operations John Hornibrook wrote the internal Nov. 27 email message. The email was sent to top managers and pilot leaders. 

The incidents Hornibrook listed ranged from pilots going over airspeed limits to aircraft approaching a stall. It also cited weather-induced threats that perhaps could have been avoided. 

Hornibrook called the sending of the email a sign of Horizon’s high safety standards. 

Horizon is the sister carrier of Seattle-based Alaska Airlines.