US Airways denies crew members used racial slurs against actor Brandon T Jackson, who was kicked off a flight because of unruly behaviour.
The 29-year-old had been drinking on the New York City-to-Phoenix flight and became upset when flight attendants stopped serving him alcohol.
The Tropic Thunder actor sent out 21 tweets about the experience and says a flight attendant "called me the N-word".
Police escorted Brandon out of the terminal at Sky Harbour International Airport.
US Airways spokesman Andrew Christie says crew members "deny any use of the N-word or racist slurs with Mr Jackson".
A call for comment to Creative Artists Agency and ML Management, who represent Brandon, was not immediately returned.