Incident at CALGARY INTL AB (CYYC) (Conflict - loss of separation, ATS operating irregularity)


2003-01-21: C-FVAX, a Cessna 425, departed Runway 34 at Calgary on an IFR flight to City Centre. On contact with the Departure Controller, the a/c was radar-identified, but with no Mode C readout. The Controller turned the a/c to a heading of 040 degrees. C-GYSC, a Beech King Air, departed Runway 34 for Medicine Hat right behind C-FVAX and the crew was given a heading of 010 degrees by Tower. The Departure Controller advised there was no radar contact with C-GYSC and instructed the crew to maintain 5,000 feet. They responded that the a/c was at 5,500 feet and the Controller immediately turned the flight to 080 degrees. He then instructed the flight to continue the right turn to 100 degrees. A loss of separation occurred when the Departure Controller issued the heading of 040 degrees to C-FVAX with C-GYSC having been issued 010 degrees by Tower. Separation was reduced to 700 feet vertical and 1.5 miles lateral where 1,000 feet or 3 miles lateral is required.


CADORS Number 2003C0085
Occurrence Type Incident
Reported By NAV CANADA
Occurred At 2003-01-21 - 14:25
Day or Night?
Fatalities 0
Aerodrome ID CYYC
Geographic Location Alberta, Canada, North America, Prairie and Northern Region, Calgary
TSB Occurrence Number
TSB Class of Investigation
AOR Number 27130
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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