CHI93LA349

NTSB accident investigation · Boeing Stearman A75N1 · Delevan, WI · September 3, 1993

Accident · No injuriesLimited investigationFinal report
Date
September 3, 1993, 13:30 local (18:30 UTC)
Place
Delevan, WI
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N55501Boeing Stearman A75N1
Weather
Visual (VMC) · Day
Status
Completed · report December 2, 1994
Report
Approved by Office Director
FAA report
19930903032969A
Case key
9304

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

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Probable cause

the excessive use of brakes and rudder by the pilot-in-command. A factor related to the accident was the pilot-in-command's lack of total experience in this type of aircraft.

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 - on ground/waterLanding - roll
Brakes(normal) - excessivePilot in commandCause
Rudder - excessivePilot in commandCause
Lack of total experience in type of aircraftPilot in commandFactor
Nose overLanding - roll

Analysis

The vintage tailwheel airplane touched down on runway 36 with a crosswind. According to the front seat pilot/passenger, the airplane began to weather vane as the tailwheel touched down at which time the rear seat pilot made hard rudder and brake inputs. The airplane nosed over, damaging the vertical stabilizer and rudder and the top wing's upper surface.

Factual narrative

On September 3, 1993, at 1330 central daylight time (CDT), a Boeing/Stearman A75N1, N55501, registered to Jay Brost of Fontana, Wisconsin, and piloted by a private pilot, was substantially damaged when it nosed over during a landing roll following touchdown onto Runway 36 (4,400 x 75' dry asphalt) at the Lake Lawn Airport, Delevan, Wisconsin. Visual meteorological conditions prevailed at the time of the accident. The 14 CFR Part 91 personal flight was not operating under a flight plan. The flight originated from Harvard, Illinois, at 1300 CDT.

Written statements on the NTSB Form 6120.1/2 submitted by both pilots state that the airplane had encountered a crosswind requiring rudder application. The pilot-in-command, in the rear seat, applied brake application "...excessively...", or "...hard...", instead of rudder control according to the front seat pilot/passenger. The pilot/passenger stated that airplane began to weather vane as the tailwheel was lowering, and that the "...PIC acted with hard rudder/brake which caused a/c to go over (on) its nose."

The on-scene investigation was conducted by a Federal Aviation Administration Principal Operations Inspector (POI). The POI stated the vertical stabilizer and rudder were crushed downward, and that the top wing of the airplane had rib and covering damage on its upper surface.

Aircraft

Registration
N55501
Reported as
Boeing Stearman A75N1
Category
Airplane
Serial number
75-4740
Engine
Continental R-670, 220 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Jay Brost
Registered owner
Jay H. Brost
Airworthiness certificate
Standard, Aerobatic
Departed
0C0 · Harvard, IL
Destination
C59
Airport
C59 · Lake Lawn, runway 36, 4,400 × 75 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
57
Certificate
Private
Airplane ratings
Single-engine land
Instrument ratings
Airplane
Medical
Class 3, Valid Medical--w/ waivers/lim
Seat
Rear
Flight hours
3,000 total · 20 in this make and model

Weather

Conditions
Visual (VMC) · Day
Wind
340° at 10 knots
Visibility
12 statute miles
Lowest ceiling
4,700 ft broken
Altimeter
29.00 inHg
Observed at
JVL, 20 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.