Air traffic controllers at Washington’s Ronald Reagan National Airport will be offered crisis counseling and additional supervision after a fight in the tower and another alarming near miss two months after a midair collision between a passenger jet and an Army helicopter killed 67 people.

The Federal Aviation Administration said Wednesday that it is also evaluating whether the current arrival rate at Reagan is too high.

The agency said it would extend extra support to the controllers who direct flights around the airport while Congress and the National Transportation Safety Board continue investigating the January crash.

The FAA’s decision to bring in crisis counselors followed the March 27 arrest of a 39-year-old employee from Maryland on suspicion of assault and battery after the control tower fight, the Metropolitan Washington Airports Authority confirmed in a statement.

The FAA said the employee was put on administrative leave while the fight is investigated.

The next day, a Delta passenger jet had to take evasive action as it took off from Reagan because of the proximity of a flight of four Air Force jets involved in a flyover at Arlington National Cemetery. The incident continued a pattern of close calls that the NTSB has said went on for years around the airport as commercial flights repeatedly got dangerously close to helicopters and other aircraft.

The FAA said Wednesday that it was reviewing the “current arrival rate of aircraft per hour, which is disproportionately concentrated within the last 30 minutes of each hour.”

After January’s crash between an American Airlines jet and an Army Black Hawk helicopter, the arrival rate at the airport fell to 26 an hour while crews worked to recover the wreckage and victims’ bodies from the Potomac River.

The acting head of the FAA said last week that arrivals were back up to 30 an hour and could go up to 32. Now, the agency is rethinking that.