Incident at Greenwood


1999-11-01: ACA142 B767 inbound Halifax from Toronto at 33,000 feet was clear to 29,000 feet. Controller acknowledge and cleared him to 10,000 feet. ICN2210 F28 reported at 25,000 feet about 30 nautical miles north of ACA 142, converging into Halifax. The ACA had descended to 25,800 feet and advised he had a TCAS and was leveling at 26,000feet. ICN also reported a TCAS and was leveling at 26,000 feet. The controller than turned the ACA142 20 degrees to the left and once he had required radar spacing descended both aircraft into Halifax. TSB Evaluating Update : TSB Case Closed. Update : NAV CANADA conducted an over-the-shoulder ( OTS ) proficiency check on the controller before returning him to duty. Correction: ICN2210 was level at 25,000 feet during the incident and was not leveling off at 25,000 feet.


CADORS Number 1999A0585
Occurrence Type Incident
Reported By NAV CANADA
Occurred At 1999-10-12 - 22:50
Day or Night?
Fatalities 0
Aerodrome ID
Aerodrome Name
Geographic Location Nova Scotia, Canada, North America, Atlantic Region, Greenwood
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
Foreign Registration
Country of Registration Canada
Occurrence Type Incident
Operator AIR CANADA (5262) Commercial
Make  Silhouette image of BOEING
Model 767 200
Year Built
Engine Type
Engine Make
Engine Model
Gear Type Land
Private No
Amateur Built No
Flight Number
Flight Rule
CARS Subpart
Phase of Flight Descent
Damage Unknown
Fatalities 0
Injuries 0
Events Conflict - loss of separation

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