The Delta Air Lines Inc. plane that flipped over as it landed in Toronto last month was warned about its rate of descent, according to a preliminary report released Thursday by the Transportation Safety Board of Canada. The CRJ-900 regional …

The Delta Air Lines Inc. plane that flipped over as it landed in Toronto last month was warned about its rate of descent, according to a preliminary report released Thursday by the Transportation Safety Board of Canada. The CRJ-900 regional …