NTSB Identification: MIA86LA120.
The docket is stored on NTSB microfiche number 30552.
Accident occurred Monday, April 14, 1986 in BUNNELL, FL
Aircraft: CESSNA T303, registration: N212ER
Injuries: 2 Uninjured.

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

WHILE ON A DUAL INSTRUCTIONAL FLIGHT BOTH INSTRUCTOR AND THE STUDENT PILOT NOTED A LEFT BRAKE FAILURE ON TAXI TO TAKEOFF. THE INSTRUCTOR ATTEMPTED TO UTILIZE ASYMMETRIC POWER TO STEER THE AIRCRAFT BUT COULD NOT CONTROL THE TURN. THE AIRCRAFT RAN OFF THE EDGE OF THE TAXIWAY AND WENT INTO A DITCH. THE LEFT BRAKE MASTER CYLINDER WAS FOUND EMPTY OF HYDRAULIC FLUID AFTER THE ACCIDENT. THE 'O' RING IN THE MASTER CYLINDER HAD FAILED AND ALLOWED THE FLUID TO ESCAPE TO THE RIGHT BRAKE SYSTEM.

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

LANDING GEAR,NORMAL BRAKE SYSTEM..FAILURE,PARTIAL

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

FLUID,HYDRAULIC..EXHAUSTION

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

MAINTENANCE,DESIGN CHANGE..INADEQUATE..MANUFACTURER


Contributing Factors

TERRAIN CONDITION..DITCH

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