CHI85FEP03

NTSB accident investigation · Roger W. Stigen EAA Biplane SR-1 · Sprimg Greem, WI · August 27, 1985

Accident · Serious injuriesFinal report
Date
August 26, 1985, 19:05 local (Aug 27, 1985, 00:05 UTC)
Place
Sprimg Greem, WI
Injuries
1 serious
Damage
Destroyed
Phase of flight
Approach
Aircraft
N3541Roger W. Stigen EAA Biplane SR-1
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
FAA report
19850826041259A
Case key
12887

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

On this page

Sequence of events

NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.

Loss of control - in flightApproach - vfr pattern - final approach
Airspeed - not maintainedPilot in commandCause
Diverted attentionPilot in commandCause
Stall/spin - inadvertentPilot in commandCause
In flight collision with terrain/waterDescent - uncontrolled

Analysis

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.

Aircraft

Registration
N3541
Reported as
Roger W. Stigen EAA Biplane SR-1 (EAA BIPLAN)
Category
Airplane, amateur-built
Serial number
1
Airframe hours
525
Engine
Continental C8512F, 85 horsepower, reciprocating
Damage
Destroyed
Flight
Personal · Part 91
Operator
John R. Boatwright
Registered owner
Freeborn County Aircraft, Inc.
Airworthiness certificate
Special, Experimental (Special)
Last inspection
100 hour · May 4, 1984 · 39 hours before
Airport
LNR · Tri-County, runway 27, 4,050 × 50 ft, asphalt

Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
39
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Valid Medical--no waivers/lim.
Flight hours
250 in this make and model

Weather

Conditions
Visual (VMC) · Day
Wind
300° at 3 knots
Visibility
7 statute miles
Lowest ceiling
None
Temperature
72 °F
Observed at
MSN, 38 nm away

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.