WorldUS transport chief says cause of mass flight groundings remains unclear
The FAA and Transportation Secretary Sean Duffy said investigations are continuing into the largest US flight grounding in more than 25 years. Officials said they had found no evidence of malfeasance; possible causes include contractor error or a faulty router installed by L3Harris. About 16,000 flights were delayed on Friday and Saturday, and Duffy said the worst was behind them.
US transport chief says cause of mass flight groundings remains unclear
World