Incident at Edmonton ACC, Alberta (Communication navigation surveillance/air traffic system)


1997-02-10: A snow plow cut through a fibre cable at Mulhurst (vicinity of Edmonton ACC). The result was a major disruption to communications within the ACC. In addition to losing the ADIS circuit (flight planning and weather), the ACC lost 5 PALS and at least 10 circuits. Service was restored by the line company at 0130Z. Duration of outage was 4 hours 30 minutes. Although the users were inconvenienced, particularly in areas of flight planning, no major delays were suffered by any flights.


CADORS Number 1997C0089
Occurrence Type Incident
Reported By NAV CANADA
Occurred At 1997-02-07 - 21:00
Day or Night?
Fatalities 0
Aerodrome ID
Aerodrome Name
Geographic Location Alberta, Canada, North America, Prairie and Northern Region, Edmonton ACC, Alberta
TSB Occurrence Number
TSB Class of Investigation
AOR Number
Reported By NAV CANADA
Categories ATM/CNS
Events Communication navigation surveillance/air traffic system

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