N428CA
CASA 212
THE CASA 212 DEPARTED SAN JUAN, PUERTO RICO, EN ROUTE TO MAYAGUEZ, PUERTO RICO, ON A 14 CFR PART 135 SCHEDULED, DOMESTIC, PASSENGER, COMMUTER FLIGHT. VFR 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 CHECK RIDE FROM AN AUTHORIZED CHECK AIRMAN. DURING LANDING ROLLOUT AT THE DESTINATION AIRPORT, THE NOSEWHEEL DEVELOPED A HEAVY VIBRATION, AND THE AIRPLANE VEERED OFF THE RUNWAY TO THE RIGHT, COLLIDING WITH A SIGN. THE AIRPLANE SUSTAINED NO DAMAGE. THE FLIGHTCREW AND 16 PASSENGERS WERE NOT INJURED.
FAILURE OF THE NOSEGEAR ASSEMBLY STEERING ACTUATOR DUE TO PLAY AT THE LOWER TRUNNION, WHICH CAUSED A VIBRATION, FAILURE OF THE STEERING ACTUATOR, SUBSEQUENT ON GROUND LOSS OF CONTROL, AND ON-GROUND COLLISION WITH A SIGN DURING LANDING ROLLOUT.
Source: NTSB Aviation Accident Database
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