NTSB Identification: SEA86LA061.
The docket is stored on NTSB microfiche number 29905.
Accident occurred Wednesday, February 19, 1986 in MOUNT ST.HELENS, WA
Aircraft: PIPER PA-15, registration: N4521H
Injuries: 1 Serious,1 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 WAS ATTEMPTING TO FLY INSIDE A VOLCANIC CRATER AROUND THE LAVA DOME ABOVE 6000 FEET M.S.L.. THE AIRCRAFT HAS A 75 HORSEPOWER ENGINE. HIGH WINDS ENTERING THE CRATER FROM THE NORTHEAST FLOWING ACROSS THE LAVA DOME CREATED A DOWNDRAFT THAT THE AIRCRAFT COULD NOT OUTCLIMB. BOTH OCCUPANTS WERE RESCUED THE FOLLOWING DAY.

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

WIND INFORMATION..NOT UNDERSTOOD..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:

AIRCRAFT PERFORMANCE,CLIMB CAPABILITY..EXCEEDED


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