WASHINGTON, June 17 (Reuters) - Boeing ( BA ) CEO Dave

Calhoun will tell a U.S. Senate Committee on Tuesday the

planemaker understands concerns about its safety culture after a

January mid-air emergency involving an Alaska Airlines

737 MAX 9 raised widespread alarm.

"Much has been said about Boeing's ( BA ) culture. We've heard

those concerns loud and clear. Our culture is far from perfect,

but we are taking action and making progress," Calhoun will tell

the Senate Permanent Subcommittee on Investigations, according

to his written statement seen by Reuters.

"I know full well that this is an industry where we simply

must get it right, every time."