The National Transportation Safety Board is investigating after Delta planes were involved in three wingtip collisions over a 24-hour period on the ground at New York’s John F. Kennedy airport, according to Bloomberg News.

The separate accidents occurred between 7 p.m. on Aug. 15 and 5:30 p.m. the following day, Bloomberg reports.

Here is a brief breakdown of Bloomberg’s report:

The left wing of a Boeing Co. 737 operated by Delta Air Lines Inc. (NYSE: DAL) touched the tail of an American Airlines…