WASHINGTON, July 28 (Reuters) - The chair of the U.S.

Senate Commerce Committee will introduce broad aviation safety

legislation on Tuesday on the eve of a three-day investigative

hearing into the January 29 collision between an Army helicopter

and an American Airlines ( AAL ) regional jet that killed 67

people.

Senator Ted Cruz, who disclosed some details of his proposal

earlier this month, will be joined by National Transportation

Safety Board Chair Jennifer Homendy and Transportation Secretary

Sean Duffy to discuss his proposal to require the use of ADS-B,

an advanced aircraft-tracking technology, by U.S. Army

helicopters near civilian planes and mandate a review of

helicopter routes across the country.