The American Airlines’ subsidiary has ties that go back decades in Ohio, and just said it was moving its headquarters to Charlotte.

American Airlines CEO Robert Isom shared a letter to all employees sharing updates and resources following the deadly mid-air collision.

The National Transportation Safety Board was scheduled to provide an update on Thursday on the deadly airplane-helicopter crash over Washington, D.C. Watch live at 2:45 p.m. on Thursday, Jan. 30 in the video player above.

US airlines had gone 16 years without a fatal crash until Wednesday night. But as impressive as that safety record had been, there have been warning signs in recent years of a significant risk of a collision like the one that just killed 67 people.

PSA Airlines, the carrier involved in the mid-air accident over Washington, ironically preserves the name of another airline whose involvement in two mid-air collisions contributed to as pairspace safety reforms including implementation of traffic collision-avoidance systems.

Emergency response officials from the District of Columbia say no survivors have been found after a Bombardier CRJ700 operated by PSA Airlines collided with a US Army helicopter over the Potomac River,

Southwest's CEO Bob Jordan said "our hearts go out" to people on the American Airlines flight involved in Wednesday night’s midair collision with a helicopter in the nation’s capital.

The Federal Aviation Administration issued a statement saying that A PSA Airlines Bombardier CRJ700 regional jet collided in midair with a Sikorsky H-60 helicopter while approaching Washington National Airport at about 9 p.

Wednesday night’s crash of an American Airlines commuter plane in Washington could be one of the worst disasters for the Fort Worth-based airline in more than two decades.

An Army Black Hawk helicopter collided with a regional jet near Ronald Reagan Washington National Airport on Wednesday evening, U.S. officials confirmed to ABC News.

American Airlines CEO Robert Isom on Thursday morning expressed his condolences to the family and loved ones of those aboard a flight that collided with a military helicopter Wednesday night.

American Airlines CEO Robert Isom expressed “deep sorrow” about the crash that occurred near Reagan Washington National Airport in Virginia on Wednesday. Isom, in a video statement, said the