Incident at Halifax Intl (Communication navigation surveillance/air traffic system)

Summary

1999-12-10: One aircraft was being vectored for a left hand approach while the other was being vectored for a right hand approach to runway 33. While the aircraft were on base leg the Terminal controller's frequency 128.55 failed. In the short period required for the loss of communication to be detected and the back-up activated the separation deteriorated to slightly less than 2.5 miles where 3 miles was required. Maintenance was being carried out on 119.2 and NAV CANADA will conduct an investigation to determine if the failure was related to the maintenance work. TSB case closed. Update to reflect second event of Loss of Separation and TSB file # A99A0162

Details


CADORS Number 1999A0685
Occurrence Type Incident
Reported By NAV CANADA
Occurred At 1999-12-08 - 14:03
Day or Night?
Fatalities 0
Injuries
Aerodrome ID
Aerodrome Name
Geographic Location Nova Scotia, Canada, North America, Atlantic Region, Halifax Intl
TSB Occurrence Number
TSB Class of Investigation
AOR Number
Reported By NAV CANADA
Categories Airprox/TCAS alert/loss of separation/(near) midair collisions,ATM/CNS
Events Communication navigation surveillance/air traffic system



Aircraft Details (1 aircraft)

Type Aeroplane
 Silhouette image of Aeroplane
Canadian Registration
Foreign Registration
Country of Registration Canada
Occurrence Type Incident
Owner AIR NOVA INC.
Operator AIR NOVA Commercial
Make  Silhouette image of DEHAVILLAND
DEHAVILLAND
Model DHC 8
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 Landing
Damage Unknown
Fatalities 0
Injuries 0
Events Conflict - loss of separation

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