American Airlines subsidiary plane crashes near Washington DC

Group 1 - PSA Airlines flight 5342, a regional flight operated by a subsidiary of American Airlines, collided midair with a helicopter during its final approach to Reagan Washington National Airport [1][4] - The aircraft involved was a Bombardier CRJ700, which has a capacity of up to 65 passengers and four crew members [3] - Following the incident, a ground stop was ordered at Reagan National Airport, and a search and rescue operation is currently in progress [2][4] Group 2 - American Airlines acknowledged the incident and stated that they would provide further information as it becomes available [2] - The number of individuals on board the flight and any potential fatalities remain unknown at this time [3]