Incident at THUNDER BAY ON (CYQT) (Communication navigation surveillance/air traffic system)


1997-03-13: A partial MACS communications failure occurred with a lightning strike at 0213Z, with the loss of position 3 at the Thunder Bay Flight Service Station. Position 2 was lost at 0219Z, and position 4 was already unserviceable from the previous thunderstorm (see CADORS C94/193). A complete communications failure occurred at 0249Z. Position 1 was reset 3 times between 0249Z and 0529Z, at which time a complete outage occurred until 1020Z, when positions 1 and 3 were returned to service. During the outage, which lasted more than 5 hours, all frequencies, telephones, alarms and monitors were unserviceable. Thunder Bay FSS reported that if thunderstorms threaten again, then one position will be removed from service to save one spare card.


CADORS Number 1994C0198
Occurrence Type Incident
Reported By
Occurred At 1994-06-16 - Unknown time
Day or Night?
Fatalities 0
Aerodrome ID CYQT
Aerodrome Name THUNDER BAY ON (CYQT)
Geographic Location Ontario, Canada, North America, Ontario Region, Thunder Bay Airport
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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