Incident at 10 SW of Wainwright, AB (TCAS alert, Conflict - loss of separation)


1997-12-22: ACA 135 was enroute from Toronto to Edmonton at FL 280, and ACA 264 was enroute from Edmonton to Saskatoon at FL 270. Traffic was passed to the crews of both a/c, and when they were crossing just to the south of Wainwright, the crew of ACA 264 reported a TCAS resolution, and they turned right and descended to FL 267. The crew of ACA 135 later reported that their autopilot had allowed the a/c to descend 150 below their assigned altitude of FL 280. OPI - System Safety


CADORS Number 1997C0859
Occurrence Type Incident
Reported By NAV CANADA
Occurred At 1997-12-19 - 03:48
Day or Night?
Fatalities 0
Injuries 0
Aerodrome ID
Aerodrome Name
Geographic Location Alberta, Canada, North America, Prairie and Northern Region, 10 SW of Wainwright, AB
TSB Occurrence Number
TSB Class of Investigation
AOR Number
Reported By NAV CANADA
Categories Airprox/TCAS alert/loss of separation/(near) midair collisions
Events TCAS alert,Conflict - loss of separation

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