NTSB Identification: DEN86FA075.
The docket is stored on NTSB microfiche number 31815.
Accident occurred Thursday, February 06, 1986 in BISMARCK, ND
Aircraft: PIPER PA-34-200, registration: N55654
Injuries: 1 Fatal.

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 ACFT WAS OBSERVED DESCENDING OUT OF A LOW CEILING WHEN IT SUDDENLY MADE AN ABRUPT LEFT TURN. ENGINE NOISE SEEMED TO INCREASE MOMENTARILY AND THEN THE NOSE OF THE ACFT DROPPED TO A NEAR VERTICAL POSITION. THE TWIN ENGINE ACFT CRASHED INTO A VACANT HOUSE TRAILER DESTROYING THE ACFT. SUBSEQUENT EXAMINATION OF THE WRECKAGE REVEALED 2 FUEL INJECTOR NOZZLES OF THE LEFT ENGINE WERE CLOGGED WITH FOREIGN MATERIAL AND CONTAMINATION WAS FOUND IN THE FUEL CONTROL UNIT OF THE SAME ENGINE.

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

FUEL SYSTEM,INJECTOR..BLOCKED(PARTIAL)

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

FUEL SYSTEM,INJECTOR..CONTAMINATION

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

AIRCRAFT HANDLING..NOT MAINTAINED..PILOT IN COMMAND

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

FUEL SYSTEM,INJECTOR..CORRODED

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

FUEL SYSTEM,FUEL CONTROL..CORRODED

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

MAINTENANCE..INADEQUATE..PILOT IN COMMAND


Contributing Factors

WEATHER CONDITION..LOW CEILING

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