Incident at Calgary, AB


1999-03-18: C-GVCA, a Lear 35, departed Calgary for an IFR flight to Thunder Bay and the Controller issued an altitude restriction of 9,000 feet ASL after takeoff to avoid conflict with an inbound a/c which had been cleared to descend to 10,000 feet ASL. As the two a/c approached each other, the Controller observed that C-GVCA appeared to be climbing, leaving 9,400 feet. When questioned, the crew replied that they were at 9,000 feet, although the Controller observed 9,500 feet on radar. Shortly after, the radar target descended to 9,000 feet. In a preliminary investigation, NavCanada determined that the crew had been cleared to 9,000 feet and the clearance had been acknowledged. OPI - Enforcement


CADORS Number 1999C0203
Occurrence Type Incident
Reported By NAV CANADA
Occurred At 1999-03-18 - 17:10
Day or Night?
Fatalities 0
Aerodrome ID
Aerodrome Name
Geographic Location Alberta, Canada, North America, Prairie and Northern Region, Calgary, AB
TSB Occurrence Number
TSB Class of Investigation
AOR Number
Reported By NAV CANADA
Categories Airprox/TCAS alert/loss of separation/(near) midair collisions

Aircraft Details (1 aircraft)

Type Aeroplane
 Silhouette image of Aeroplane
Canadian Registration GVCA | Flightaware (Registration) | Flightaware (Tracking) | AvHerald
Foreign Registration
Country of Registration Canada
Occurrence Type Incident
Operator Commercial
Make  Silhouette image of LEARJET
Model 35
Year Built 1975
Engine Type Turbo fan
Engine Make
Engine Model
Gear Type Land
Private No
Amateur Built No
Flight Number
Flight Rule
CARS Subpart
Phase of Flight Climb
Damage Unknown
Fatalities 0
Injuries 0
Events Conflict - potential

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