United Co-Pilot Warned Plane Was Slow, Low Before Newark Mishap

The first officer on a United Airlines Holdings Inc. plane that struck a light pole while landing at Newark Liberty International Airport last month told safety investigators that he warned his captain that the aircraft was “slow and a little low” as they were approaching the runway.

The first officer said he didn’t process the information fast enough to call for the plane to abort its landing and climb back into the air, according to a preliminary report released Thursday by the US National Transportation Safety Board.

The NTSB has been digging into the cause of the May 3 ...