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

Summary

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.

Details


CADORS Number 2003C0085
Occurrence Type Incident
Reported By NAV CANADA
Occurred At 2003-01-21 - 14:25
Day or Night?
Fatalities 0
Injuries
Aerodrome ID CYYC
Aerodrome Name CALGARY INTL AB (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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