WASHINGTON, Aug 1 (Reuters) - The Federal Aviation

Administration said on Friday it is planing additional

helicopter route changes near Ronald Reagan Washington National

Airport after the January 29 mid-air collision of an American

Airlines ( AAL ) regional jet and an Army helicopter that killed

67 people.

FAA official Nick Fuller said at a National Transportation

Safety Board investigative hearing that an agency work group is

planning changes on a key helicopter route near Reagan after

imposing permanent restrictions on non-essential helicopter

operations in March.