Officials are reviewing staffing and communications around a March 22 runway collision at LaGuardia Airport that left multiple fatalities, citing why controller presence and coordination matter during emergencies. According to a New York Times report on April 2, investigators are assessing whether an air traffic controller stepped away to use an emergency telephone before the Air Canada Express jet struck a fire truck. The fire vehicle had entered the runway after a United Airlines flight reported an “emergency” following a strange odor. A government official said a landline may have been used. NTSB chair Jennifer Homendy confirmed two controllers were on duty, standard for the midnight shift amid weather delays…