American cancels 115 flights per day until mid-Aug.

NEW YORK — American Airlines announced Sunday that it was canceling 115 flights per day through mid-August because of ongoing problems with the Boeing 737 Max aircraft.

The announcement made American the second major carrier to cancel Max flights through the busy summer season. Southwest Airlines, the largest operator of Boeing jets, announced last week that it would cancel its Max flights through Aug. 5. American’s cancellations will last through Aug. 19.

The U.S. and other countries grounded Boeing’s 737 Max plane in mid-March after deadly plane crashes in Ethiopia and Indonesia. Boeing aims to finish fixing the planes in late April, and any changes would have to be submitted to the U.S. and foreign regulators for approval.