Incident at HALIFAX / STANFIELD INTL NS (CYHZ) (Conflict - loss of separation, Communication error)

Summary

2001-08-07: Approximately 15 minutes after departure, ARN8885 BAE 146 was switched to next controllers frequency . He took the frequency change as apparently so did another company aircraft just barely off Halifax airport (ARN 8855)DHC8A. ARN8855 later conflicted with a VFR C172 (CGDLV) approximately 20 west of Halifax . TSB Case Closed .
2001-08-13: ANS and Airspace Update: Nav Canada will reaffirm procedures for similar call sign communications.
2001-08-20: TSB Update August 7, 2001. A01A0091: APPROXIMATELY 15 MINUTES AFTER DEPARTURE ARN8885, A BAE-146 EN ROUTE FROM HALIFAX TO OTTAWA WAS SWITCHED TO THE NEXT CONTROLLER'S FREQUENCY. ARN8885 CHANGED FREQUENCY, AS DID ANOTHER COMPANY AIRCRAFT WITH A SIMILAR CALL-SIGN, (ARN8855) - A DASH-8, WHICH HAD JUST DEPARTED HALIFAX FOR BOSTON. ARN8855 LATER CONFLICTED WITH A VFR C172 (CGLDV) APPROXIMATELY 20 WEST OF HALIFAX. THE AIRCRAFT CAME WITHIN ONE MILE HORIZONTALLY AND 500 FEET VERTICALLY.

Details


CADORS Number 2001A0486
Occurrence Type Incident
Reported By NAV CANADA
Occurred At 2001-08-06 - 14:50
Day or Night? Day-time
Fatalities 0
Injuries
Aerodrome ID CYHZ
Aerodrome Name HALIFAX / STANFIELD INTL NS (CYHZ)
Geographic Location Nova Scotia, Canada, North America, Atlantic Region,
TSB Occurrence Number A01A0091
TSB Class of Investigation Class 5
AOR Number 16932
Reported By NAV CANADA
Categories Airprox/TCAS alert/loss of separation/(near) midair collisions,ATM/CNS
Events Conflict - loss of separation,Communication error


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