NTSB Identification: SEA85LA119.
The docket is stored on NTSB microfiche number 27952.
Accident occurred Saturday, May 18, 1985 in SANTA ROSA, CA
Aircraft: CESSNA 150M, registration: N704UV
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 SHORT LOCAL FLIGHT TO A COSTAL AREA AND RETURN. THE ENGINE LOST SOME POWER. CARBURETOR HEAT WAS APPLIED BUT NO INCREASE IN POWER WAS NOTED. THE PLT THEN SET UP A GLIDE WITH INTENTIONS OF MAKING A LANDING ONTO THE BEACH AREA. AT ABOUT 500 FEET M.S.L. POWER WAS RESUMED AND THE PLT ELECTED TO CLIMB TO 2,000 FEET M.S.L. WITH THE INTENTIONS OF RETURNING TO THE DEPARTURE AIRPORT. OVER RUGGED TREED TERRAIN A POWER LOSS WAS AGAIN NOTED. APPLICATION OF CARBURETOR HEAT HAD NO EFFECT UPON THE ENGINE. A FORCED LANDING WAS MADE INTO TALL HAY. INSPECTION OF THE ENGINE REVEALED THAT THE ENGINE COMPARTMENT CARBURETOR AIR HEAT CONTROL LEVER WAS BROKEN WITH THE CONTROL CABLE DISCONNECTED AND THE HOT AIR DOOR JAMMED IN THE COLD POSITION.

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

WEATHER CONDITION..CARBURETOR ICING CONDITIONS

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

CARBURETOR HEAT CONTROL..INOPERATIVE


Contributing Factors

TERRAIN CONDITION..HIGH VEGETATION

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