The jet's sterling safety record won't help Bombardier, however, as the Quebec manufacturer divested its aircraft programs to focus on private jets for business customers and the ultra-wealthy.

Some experts, politicians and airport managers have been warning of the risks posed by the crowded airspace at Reagan Washington National Airport.

The collision between an American Airlines Group Inc. regional jet and a military helicopter near Ronald Reagan airport in Washington left no survivors on board the two aircraft, authorities said, ...