Incident Overview
A CASA 212 aircraft was operating a scheduled domestic passenger commuter flight under 14 CFR Part 135 from San Juan, Puerto Rico, to Mayagüez, Puerto Rico. Visual flight rules conditions prevailed and a flight plan was filed. The prospective captain was flying the airplane from the left seat while receiving an initial operating experience (IOE) check ride from an authorized check airman.
Sequence of Events
During the landing rollout at the destination airport, the nosewheel developed a heavy vibration. The airplane subsequently veered off the runway to the right and collided with a sign.
Aftermath
The airplane sustained no damage. The flight crew and 16 passengers were not injured.
Investigation Status
The incident remains under investigation by the appropriate authorities. The probable cause has not been determined.