NTSB Identification: CHI85FEP03.
The docket is stored on NTSB microfiche number 30449.
Accident occurred Monday, August 26, 1985 in SPRIMG GREEM, WI
Aircraft: ROGER W. STIGEN EAA BIPLANE SR-1, registration: N3541
Injuries: 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.

EAA BI PLANE N3541, PILOTED BY JOHN BOATRIGHT, AND REGISTERED TO FREEBORN COUNTY AIRCRAFT INC., ALBERT LEA, MINNESOTA, SUSTAINED SUBSTANTIAL DAMAGE DURING A LANDING APPROACH TO RUNWAY 27 AT THE LONE ROCK AIRPORT AT APPROXIMATELY 1900 CDT ON AUGUST 26, 1985. THE PILOT-IN-COMMAND AND SOLE OCCUPANT OF THE AIRCRAFT RECEIVED SERIOUR INJURIES. MR. BOATRIGHT REPORTED THAT HIS ATTENTION WAS DIVERTED AS HE REDUCED POWER TURNIGN FINAL. HE STATED THE AIRCRAFT ENTERED A SPIN. HE STATED HE RECOVERED FROM THE SPIN, BUT WAS TOO LOW TO AVOID COLLISION WITH GROUND. VISUAL METEORLOGICAL CONDITIONS PREVAILED, AND NO FLIGHT PLAN WAS FILED.

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

AIRSPEED..NOT MAINTAINED..PILOT IN COMMAND

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

DIVERTED ATTENTION..PILOT IN COMMAND

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

STALL/SPIN..INADVERTENT..PILOT IN COMMAND

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