Incident at Thunder Bay, Ontario (Communication navigation surveillance/air traffic system)


1997-04-01: A complete MACS communications failure occurred at 1935Z and lasted till 1945Z. Also numerous other shorter disruptions occurred between 1945Z to 2150Z as technical staff troubleshot the equipment and returned the complete system to normal operation. The following frequencies were unserviceable during these interruptions: Thunder Bay 126.7 122.5 121.5 243.0. Dryden RAAS 122.6 and 122.1. Atikokan RCO 122.2 and 243.0. Red Lake RAAS 122.6 and 122.3. Pickle RAAS 122.6 and 122.2. Telephones 807 577-3343 1-800 INFO FSS CCT 430 CCT 481 and 807 475-3044 Dryden Regional Airport Runway lighting and navaid monitoring were unserviceable with MACS outage.


CADORS Number 1995C0390
Occurrence Type Incident
Reported By
Occurred At 1995-10-30 - 19:35
Day or Night? Day-time
Fatalities 0
Injuries 0
Aerodrome ID
Aerodrome Name
Geographic Location Ontario, Canada, North America, Ontario Region, Thunder Bay, Ontario
TSB Occurrence Number
TSB Class of Investigation
AOR Number
Reported By
Categories ATM/CNS
Events Communication navigation surveillance/air traffic system

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