NTSB Identification: SEA84FA030.
The docket is stored on NTSB microfiche number 22906.
Nonscheduled 14 CFR
Accident occurred Friday, December 30, 1983 in POCATELLO, ID
Aircraft: PIPER PA-34-220T, registration: N8362L
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.

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

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:

SPATIAL DISORIENTATION..PILOT IN COMMAND


Contributing Factors

TERRAIN CONDITION..SNOW COVERED


Contributing Factors

WEATHER CONDITION..LOW CEILING


Contributing Factors

WEATHER CONDITION..SNOW


Contributing Factors

WEATHER CONDITION..FOG

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