
Runway safety system 'did not alert,' NTSB says
As the National Transportation Safety Board investigates the crash, NTSB chair Jennifer Homendy said there were two people in the air traffic control tower cab at the time of collision: the local controller and the controller in charge.
Two controllers is "the standard operating procedure for LaGuardia for the midnight shift," Homendy said at a news conference on Tuesday.
She said the NTSB has been concerned about fatigue from the midnight shift in past investigations, but stressed that there is no evidence of fatigue so far in this case.
LaGuardia has a runway safety system allowing air traffic controllers to track surface movement of planes and vehicles, but that system "did not alert," Homendy said.
One reason -- none of the vehicles rushing to the tarmac had tracking systems installed, including the Port Authority fire truck struck by the landing Air Canada flight
The analysis found that the system "did not generate an alert due to the close proximity of vehicles merging and unmerging near the runway, resulting in the inability to create a track of high confidence," Homendy said.








