NTSB Identification: MIA92IA141.
The docket is stored on NTSB microfiche number 46554.
Scheduled 14 CFR
Incident occurred Wednesday, June 24, 1992 in MAYAGUEZ
Probable Cause Approval Date: 09/14/1993
Aircraft: CASA 212, registration: N428CA
Injuries: 18 Uninjured.

NTSB investigators used data provided by various sources and may not have traveled in support of this investigation to prepare this aircraft incident report.

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.

The National Transportation Safety Board determines the probable cause(s) of this incident to be:

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.

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