Incident at LA RONGE (BARBER FIELD) SK (CYVC) (Conflict - loss of separation, ATS operating irregularity)


2003-02-14: TW 600, a Cessna 441, and KN 1050, a Metro III, were IFR, flight planned Prince Albert to La Ronge. Initially vertical separation was in place. The second aircraft (TW 600) requested the same altitude as the first aircraft (KN 1050). DME distance was checked indicating the aircraft were separted by 22 DME miles. TW 600 was issued clearance to maintan FL 180 (same altitude as KN 1050). Longtitudinal separation being applied was 20 DME miles. The second aircraft was 45 knots faster, which eroded the required separation to 19 DME miles, at which time TW 600 was given descent clearance.
2003-03-04: UPDATE ANS and Airspace reported that Nav Canada will conduct an Operational Safety Investigation (OSI) concerning this occurrence.


CADORS Number 2003C0209
Occurrence Type Incident
Reported By NAV CANADA
Occurred At 2003-02-13 - 16:05
Day or Night? Day-time
Fatalities 0
Injuries 0
Aerodrome ID CYVC
Geographic Location Saskatchewan, Canada, North America, Prairie and Northern Region, 40 NM S of La Ronge
TSB Occurrence Number
TSB Class of Investigation
AOR Number 27589
Reported By NAV CANADA
Categories Airprox/TCAS alert/loss of separation/(near) midair collisions,ATM/CNS
Events Conflict - loss of separation,ATS operating irregularity

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