NTSB Identification: CHI86MA052.
The docket is stored on NTSB microfiche number 32096.
Accident occurred Sunday, December 22, 1985 in BROOKLYN, MI
Aircraft: CESSNA 177B, registration: N34046
Injuries: 6 Fatal.

NTSB investigators traveled in support of this investigation and used data obtained from various sources to prepare this aircraft accident report.

THE PILOT TOOK OFF WITH FIVE PASSENGERS APPROXIMATELY 170 POUNDS OVER MAXIMUM ALLOWABLE GROSS WEIGHT INTO KNOWN MODERATE ICING CONDITIONS. HIS AIRCRAFT WAS NOT EQUIPPED TO FLY IN THESE CONDITIONS. RADIO AND RADAR CONTACT WERE LOST AT APPROXIMATELY 3500 FEET MSL, AND THE AIRCRAFT WAS SIGHTED COMING OUT OF AN OVERCAST DECK WITH A FAILED WING. IT IMPACTED AN ICE COVERED LAKE IN A NEAR VERTICAL ATTITUDE.

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

PREFLIGHT PLANNING/PREPARATION..IMPROPER..PILOT IN COMMAND

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

PLANNING/DECISION..DISREGARDED..PILOT IN COMMAND

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

JUDGMENT..POOR..PILOT IN COMMAND

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

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

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

PERFORMANCE DATA..DISREGARDED..PILOT IN COMMAND

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

JUDGMENT..POOR..PILOT IN COMMAND


Contributing Factors

WING..FAILURE,PARTIAL


Contributing Factors

ANTI-ICE/DEICE SYSTEM,WINDSHIELD..EXCEEDED


Contributing Factors

WEATHER CONDITION..ICING CONDITIONS


Contributing Factors

DESIGN STRESS LIMITS OF AIRCRAFT..EXCEEDED..PILOT IN COMMAND


Contributing Factors

WEATHER CONDITION..ICING CONDITIONS

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