NTSB Identification: LAX86LA065.
The docket is stored on NTSB microfiche number 30182.
Accident occurred Friday, December 13, 1985 in MADERA, CA
Aircraft: HILLER H-23A, registration: N3107G
Injuries: 1 Serious.

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 HELICOPTER CRASHED DURING A LOCAL FROST PROTECTION FLIGHT. AFTER ABOUT ONE HOUR OF LIGHT, IN DARK NIGHT TIME CONDITIONS, FOG APPEARED SUDDENLY AND THE PILOT BECAME DISORIENTED AND CRASHED INTO THE GROUND.

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

BECAME LOST/DISORIENTED..NOT CORRECTED..PILOT IN COMMAND

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

VISUAL/AURAL PERCEPTION..PILOT IN COMMAND

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

WEATHER EVALUATION..INADEQUATE..PILOT IN COMMAND


Contributing Factors

WEATHER CONDITION..FOG


Contributing Factors

LIGHT CONDITION..DARK NIGHT

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