NTSB Identification: CHI86FA046.
The docket is stored on NTSB microfiche number 30386.
Accident occurred Tuesday, December 10, 1985 in ADRIAN, MI
Aircraft: AEROSPATIALE SA365N, registration: N5800H
Injuries: 2 Fatal,1 Serious.

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 PURPOSE OF THIS FLIGHT WAS TO PICK UP AN INJURED PATIENT AND RETURN HIM TO A MEDICAL CENTER. THE WEATHER WAS ADEQUATE FOR A VFR TAKEOFF. HOWEVER, ENROUTE WEATHER REPORTS INDICATED FOG AND PROBABLE LOW CEILINGS. ACCORDING TO THE SINGLE SURVIVOR OF THE ACCIDENT, THE PILOT FLEW INTO 'THICK FOG' SHORTLY BEFORE REACHING THEIR DESTINATION FOR THE PATIENT PICKUP. AGAIN ACCORDING TO THE SURVIVOR, THE PILOT THEN TURNED TO THE LEFT. SHORTLY THEREAFTER, THE HELICOPTER STRUCK TREES AND CRASHED TO THE GROUND. AN EXAMINATION OF THE WRECKAGE AND TEARDOWNS OF BOTH ENGINES REVEALED NO PRE- CRASH MECHANICAL MALFUNCTIONS.

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

VISUAL LOOKOUT..REDUCED..PILOT IN COMMAND

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

VFR FLIGHT INTO IMC..INADVERTENT..PILOT IN COMMAND


Contributing Factors

OBJECT..TREE(S)


Contributing Factors

WEATHER CONDITION..FOG


Contributing Factors

FLIGHT INTO KNOWN ADVERSE WEATHER..PERFORMED..PILOT IN COMMAND


Contributing Factors

LIGHT CONDITION..DARK NIGHT

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