NTSB Identification: DEN83LA014
14 CFR Part 91: General Aviation
Accident occurred Sunday, November 07, 1982 in BICKNELL, UT
Probable Cause Approval Date: 11/07/1983
Aircraft: GRUMMAN AA1, registration: N555AW
Injuries: 2 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.

THE PILOT STATED THAT SHORTLY AFTER DEPARTING THE BICKNELL AIRPORT, A STRONG DOWNDRAFT FORCED THE AIRCRAFT INTO THE GROUND WHILE APPROACHING THE LEE SIDE OF A RIDGE LINE. HE INDICATED THE AIRCRAFT WAS AT ABOUT 100 MPH INDICATED AIRSPEED WHEN GROUND CONTACT WAS MADE. HE ALSO STATED THAT THERE WERE NO MECHANICAL DIFFICULTIES WITH THE AIRCRAFT OR ENGINE PRIOR TO THE ACCIDENT.

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

WEATHER EVALUATION..IMPROPER..PILOT IN COMMAND

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

PROPER ALTITUDE..NOT MAINTAINED..PILOT IN COMMAND

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

CLEARANCE..INADEQUATE..PILOT IN COMMAND

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

STALL/MUSH..UNCONTROLLED..PILOT IN COMMAND


Contributing Factors

WEATHER CONDITION..DOWNDRAFT


Contributing Factors

TERRAIN CONDITION..MOUNTAINOUS/HILLY

Index for Nov1982 | Index of months