Incident at LETHBRIDGE AB (CYQL) (Aerodrome - power failure)
2003-07-21: At 13:12Z commercial power failed at Lethbridge Airport and standby power did not come up. Equipment affected included runway lighting, all frequencies, VDF, AFTN circuit and main telephone line. NCAMS computer continued to operate for approximately 20 minutes until battery backup was exhausted. MF was protected with portable transceiver for duration of outage. Power restored at 13:57Z. Cause of failure was attempt by the standby power plant to switch over from main to standby which caused a breaker to trip. The site electrician called and reset the breaker.
|Occurred At||- 13:12|
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