NTSB Identification: DEN83LA135.
The docket is stored on NTSB microfiche number 21189.
Accident occurred Wednesday, June 08, 1983 in MOLINA, CO
Aircraft: CESSNA TU206G, registration: N732ZQ
Injuries: 1 Minor.

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

THE PILOT HAD LEVELED OFF AT 17500 FT MSL WHEN THE ENGINE MADE A DETONATING SOUND AND LOST POWER. MANIFOLD PRESSURE WENT TO ABOUT 12 INCHES. FUEL PRESSURE WAS NORMAL BUT THE CYLINDER HEAD TEMPERATURE FELL RAPIDLY. AT 9000 FT MSL THE ENGINE SURGED TO ABOUT 16 INCHES OF MANIFOLD PRESSURE. WHEN THE PILOT LEANED THE MIXTURE THE ENGINE VIBRATED SEVERELY SO THE PILOT SECURED THE ENGINE. POST ACCIDENT INVESTIGATION REVEALED THAT THE RUBBER HOSE FROM THE TURBOCHARGER COMPRESSOR DUCT TO THE THROTTLE BODY DUCT HAD SEPARATED.

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

EXHAUST SYSTEM,TURBOCHARGER..IMPROPER

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

EXHAUST SYSTEM,TURBOCHARGER..LOOSE

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

MAINTENANCE,INSPECTION..INADEQUATE..OTHER MAINTENANCE PERSONNEL

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

EXHAUST SYSTEM,TURBOCHARGER..SEPARATION

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