WASHINGTON, April 10 (Reuters) - The U.S. Army has

turned over to the Senate a 2024 report detailing why it

routinely failed to use a safety system known as ADS-B on

helicopter flights around Reagan

Washington National Airport, Senator Ted Cruz said Thursday.

Cruz, who chairs the Senate Commerce Committee, had

threatened to subpoena the memo but the army turned it over to

the Senate Armed Services Committee, which then gave it to the

Commerce Committee, he told Reuters. An Army Black Hawk

helicopter did not have the system operating during a routine

training mission when it collided with an American Airlines ( AAL )

regional jet on January 29 near the airport, killing 67

people. An Army official confirmed that the report had been sent

to the Armed Services Committee.