NTSB Identification: LAX83FA277.
The docket is stored on NTSB microfiche number 21559.
Nonscheduled 14 CFR
Accident occurred Friday, June 10, 1983 in GOLETA, CA
Aircraft: BELL 212, registration: N59636
Injuries: 2 Fatal,2 Minor.

NTSB investigators either traveled in support of this investigation or conducted a significant amount of investigative work without any travel, and used data obtained from various sources to prepare this aircraft accident report.

THE PLT STATED THAT AS HE APPROACHED THE OIL RIG & REDUCED POWER TO START HIS DESCENT FROM 500 FT, THE TAIL ROTOR (T/R) PEDALS BEGAN TO VIBRATE. THE VIBRATIONS BECAME WORSE WITH A FURTHER REDUCTION OF POWER TO REDUCE AIRSPEED. THE PLT THEN PLANNED A DESCENT SO AS TO BE CLOSER TO THE WATER IN CASE OF A COMPLETE T/R FAILURE. HOWEVER, THE ACFT UNEXPECTEDLY STRUCK THE WATER BEFORE THE PLT ARMED THE AUTOMATICALLY ACTUATED EMERGENCY FLOTATION BAGS. THE ACFT IMMEDIATELY ROLLED OVER. THE M/R ASSEMBLY, T/R ASSEMBLY AFT OF THE 42 DEG GEAR BOX, VERTICAL FIN & UPPER TRANSMISSION WERE NOT RECOVERED. THE OPERATOR DID NOT HAVE A CFR 135 EXEMPTION ALLOWING SINGLE PILOT OPERATIONAL OF A BELL 212 OVER WATER.

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

REASON FOR OCCURRENCE UNDETERMINED

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