NTSB Identification: MKC85LA204.
The docket is stored on NTSB microfiche number 28709.
Accident occurred Monday, September 02, 1985 in BOONE, IA
Aircraft: GRUMMAN AA5, registration: N16LB
Injuries: 3 Minor.

NTSB investigators may not have traveled in support of this investigation and used data provided by various sources to prepare this aircraft accident report.

AFTER DEPARTING LAPORTE CITY AIRPORT THE PLT OF THE ACFT PROCEEDED TO HIS DESTINATION AIRPORT DESPITE DETERIORATING WEATHER CONDITIONS AT THIS DESTINATION. THE PLT STATED HE SHOULD NOT HAVE PROCEEDED INTO POOR WEATHER CONDITIONS. WEATHER CONDITIONS AT THE AIRPORT AS REPORTED BY THE AIRPORT MANAGER WERE VISIBILITY LESS THAN 1/4 MILE IN FOG. AT THE TIME HE HEARED AND SAW THE ACFT. HE ALSO OBSERVED THE ACFT BANKED NEAR VERTICAL AS THE PLT ATTEMPTED TO MAKE A LANDING TO THE AIRPORT RUNWAY. THE ACFT WAS THEN OBSERVED DESCENDING UNTIL IMPACTING THE GROUND. THE PLT STATED HE DIDN'T REALIZE HE HAD STALLED THE ACFT.

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

PROPER DESCENT RATE..NOT ATTAINED..PILOT IN COMMAND

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

STALL..INADVERTENT..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:

WEATHER EVALUATION..INADEQUATE..PILOT IN COMMAND

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

LEVEL OFF..NOT PERFORMED..PILOT IN COMMAND



Contributing Factors

WEATHER CONDITION..FOG

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