WASHINGTON, July 22 (Reuters) - The National

Transportation Safety Board will hold a three-day investigative

hearing starting July 30 over the fatal collision in January

between a U.S. Army helicopter and an American Airlines ( AAL ) regional

jet that killed 67.

The board will also release thousands of pages of records

from its investigation. The NTSB will review the Army Black Hawk

helicopter air data systems and altimeters as well as the FAA's

oversight of Washington airspace and air traffic, according to

the agenda of the hearing released Tuesday.