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Air Canada 624

Printed page 59. PDF page 67.

During this time, the airport operations' radio repeaters, which were interconnected by a network switch, and the landline telephone system did not function. Although the repeaters were wired to uninterruptible power supplies to provide a backup source of electrical power
Open official document at PDF page 67Aviation Investigation Report A15H0002: Collision with terrain, Air Canada, Airbus Industrie A320-211, C-FTJP, 29 March 2015

Air Canada 624

Printed page 79. PDF page 87.

power supply, which monitors and identifies faults and usage, has been installed for the network switch. The utility service to the airport's main electrical substation has been upgraded to provide automatic switching between 2 distinct utility feeds, supplied from 2
Open official document at PDF page 87Aviation Investigation Report A15H0002: Collision with terrain, Air Canada, Airbus Industrie A320-211, C-FTJP, 29 March 2015