NTSB Identification: LAX87LA048.
The docket is stored on NTSB microfiche number 32956.
Nonscheduled 14 CFR
Accident occurred Saturday, December 13, 1986 in SAN JOSE, CA
Probable Cause Approval Date: 03/10/1988
Aircraft: PIPER PA-32R-300, registration: N2209Q
Injuries: 1 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.

A PIPER PA 32R-300 LANDED SHORT OF THE RWY AFTER A LOSS OF POWER. THE PLT REPORTED DURING THE CLIMB THAT HE TURNED ON THE HEATER AND THE WINDSHIELD TURNED BLACK OBSCURING OUTSIDE VISION. THE PLT ALSO INDICATED THAT THERE WAS A 'PUNGENT ODOR' AT THE SAME TIME. THE PLT RETARDED THE THROTTLE AND THE WINDSHIELD BEGAN TO CLEAR. WHEN THE PLT ADVANCED THE THROTTLE TO RESUME THE CLIMB THE ENG BEGAN TO RUN ROUGH AND THEN WOULD NOT PRODUCE POWER. HE WAS GIVEN RADAR VECTORS TOWARD AN AIRPORT. THE PLT INDICATED THAT HE WAS UNABLE TO JUDGE HIS POSITION IN RELATION TO THE AIRPORT DUE TO POOR VISIBILITY. HE PREMATURELY LOST ALTITUDE BY S-TURNING AND SUBSEQUENTLY LANDED SHORT OF AND PARALLEL TO THE RWY. THE AIRCRAFT'S ENG WAS EXAMINED UNDER THE SUPERVISION OF A FAA AIRWORTHINESS INSPECTOR. IT WAS NOTED THAT 4 SPARK PLUGS HAD BEEN DAMAGED IN THE AREA OF THE ELECTRODE. FURTHER EXAMINATION DURING A TEARDOWN INSPECTION REVEALED THE MUFFLER HAD EXPLODED BLOCKING THE AIR INDUCTION SYSTEM.

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

EXHAUST SYSTEM,MUFFLER..EXPLODED

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

ENGINE ASSEMBLY..FAILURE,PARTIAL

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

FLARE..MISJUDGED..PILOT IN COMMAND

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

VISUAL LOOKOUT..REDUCED..PILOT IN COMMAND


Contributing Factors

AIRPORT FACILITIES,RUNWAY/LANDING AREA CONDITION..ROUGH/UNEVEN


Contributing Factors

RADAR ASSISTANCE TO VFR AIRCRAFT..PERFORMED..PILOT IN COMMAND


Contributing Factors

CLIMB..NOT POSSIBLE..PILOT IN COMMAND


Contributing Factors

FUEL SYSTEM,RAM AIR/INDUCTION AIR..BLOCKED(PARTIAL)


Contributing Factors

LIGHT CONDITION..DARK NIGHT


Contributing Factors

WEATHER CONDITION..FOG


Contributing Factors

WEATHER CONDITION..HAZE/SMOKE

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