NASCAR has suspended the crew chief for driver Martin Truex Jr. for one Sprint Cup race and fined him $50,000 for a rules violation at Atlanta Motor Speedway.

Cole Pearn will sit out this weekend's race at Las Vegas Motor Speedway for a roof flap violation on the No. 78 found during pre-race technical inspection.

Truex also was penalized 15 driver points and team owner Barney Visser has been penalized 15 championship owner points.

Furniture Row Racing says it will appeal the penalty because it was "safety related and not competition related."

Pearn had been on probation for a roof flap issue found at the Daytona 500.

NASCAR also fined JTG Daugherty crew chief Randall Burnett $15,000 and placed him on probation through Dec. 31; and Richard Childress Racing crew chiefs Slugger Labbe, Jusin Alexander and Luke Lambert also were each fined $15,000 and placed on probation through Dec. 31 for various infractions.