ToplineThe number of cancelled and delayed flights at LaGuardia airport rose Tuesday morning as one of its two runways remained closed a day after an Air Canada Express aircraft struck a ground vehicle shortly after landing—killing the plane’s pilots and injuring dozens of others.An Air Canada Express CRJ-900 sits on the runway at LaGuardia Airport.TNSKey FactsAccording to FlightAware data, 88 flights departing from LaGuardia have been canceled so far on Tuesday, while 46 remain delayed.Some 90 flights that were scheduled to arrive at the airport on Tuesday have also been canceled, while 87 arrivals have been delayed.After a more than 14-hour shutdown in operations due to the accident, the airport reopened at 2 p.m. EDT on Monday, but only one of its two runways is currently operational.When asked how long the runway would remain closed, Jennifer Homendy, the chair of the National Transportation Safety Board, told reporters on Monday, “It’s going to take some time.”She added that there was a “lot of debris” still present, and the agency will need to take pictures, document and collect these pieces of evidence.Key BackgroundTwo people were killed and several others were injured after an Air Canada Express aircraft struck a Port Authority Aircraft Rescue and Firefighting vehicle on the runway after landing at New York’s LaGuardia Airport on Sunday night. The accident prompted authorities to shut down all operations at the airport from around midnight until 2 p.m. Monday, resulting in more than 500 flight cancellations. The incident took place shortly after the plane, operated by Jazz Aviation on behalf of Air Canada, landed. The fire truck that was struck by the plane had been dispatched to respond to another incident.Surprising FactDuring her press conference, Homendy said some of the NTSB investigators overseeing the accident arrived in New York at around 3:10 am, a few hours after the crash. But many others were delayed or “still en route” at the time of her press conference due to the ongoing travel chaos cause by the DHS shutdown. “We have DHS that is shut down, and we have long TSA lines…We have one of our air traffic control specialist, who was in line with TSA for three hours until we called in Houston to beg to see if we can get her through so we can get her here.”Further ReadingNYC Airport Chaos: LaGuardia ‘On Track’ To Reopen Shortly, After Deadly Crash (Forbes)