Summary
Investigators found the switches for both the primary and the backup telecommunication systems for all Southern California air- traffic controllers in the "off" position after a three-hour outage early Tuesday.
The outage forced air-traffic controllers to seek help from a high-altitude air-traffic control center in Palmdale to space planes out and guide their landings.See the full content of this document
Extract
Air Traffic Control Goes Dark Across Socal
The outage affected airports from Tijuana to Ventura County, including L.A./Ontario and Los Angeles...
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