A fueling-company worker at JFK was arrested yesterday after shining a red laser light into the face of a JetBlue pilot sitting in the cockpit of an airliner preparing for takeoff to San Juan, sources told The Post.

The pilot radioed authorities, and Port Authority cops busted Bernard Seabrooks on charges of menacing and weapons possession.

His alleged motive was unclear, but cops do not believe it was terror-related.