ATL98LA085

NTSB accident investigation · Stroud SKY Bolt · Mocksville, NC · June 23, 1998

Accident · No injuriesLimited investigationFinal report
Date
June 23, 1998, 12:30 local (16:30 UTC)
Place
Mocksville, NC
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N2951SStroud SKY Bolt
Weather
Visual (VMC) · Day
Status
Completed · report May 19, 1999
Report
Approved by Office Director
FAA report
19980623015009A
Case key
4000

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 pilot's loss of directional control during landing roll when the front seat occupant inadvertently got his foot 'jammed' between the strut bungee and the rudder/brake peddle. A factor was the inadequate design of the rudder/brake peddle system.

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 - flare/touchdown
Flight control,rudder - movement restrictedCause
Aircraft control - restrictedPassengerCause
Acft/equip,inadequate designKit manufacturerFactor
Nose overLanding - roll

Analysis

According to the FAA, during landing on runway 09, the aircraft veered off the right side of the runway and nosed over. The inspector found a 300 foot skid mark made by the left main landing gear, and a 150 foot skid mark, made by the right main landing gear. The aircraft received substantial damage to the propeller, rudder, and left wing. On the landing roll, the pilot applied rudder to get the airplane onto the runway centerline, the foot of the occupant in the front seat was pressed onto the opposite brake peddle causing the airplane to react slowly. The harder the pilot applied the rudder, the harder the opposite brake was actuated. As the airplane started to depart the runway, the pilot said he applied left brake. Inertia caused the airplane to nose over. The pilot shut the airplane down and he and the passenger egressed from the inverted airplane.

Factual narrative

On June 23,1998, about 1230 eastern daylight time, a Stroud Sky Bolt, experimental airplane, N2951C, veered off the right side of the runway and nosed over while landing at Twin Lakes airport in Mocksville North Carolina. The local flight was operating under the provisions of Title 14 CFR Part 91, and visual flight rules. Visual meteorological conditions prevailed and no flight plan was filed. There were no injuries to the pilot or passenger, and the aircraft received substantial damage. The flight originated about 1150 EDT.

According to the FAA, during landing on runway 09, the aircraft veered off the right side of the runway and flipped over. The inspector found a 300 foot skid mark made by the left main landing gear, and a 150 foot skid mark, made by the right main landing gear. The aircraft received substantial damage to the propeller, vertical stabilizer, rudder, and left wing.

During the investigation, the FAA investigator found that when the occupant of the front seat put his feet in front of the landing gear strut bungee, and the person in the back seat (usually the person flying) applied left or right rudder, the front occupant's foot became jammed between the landing gear strut bungee attachment point and the rudder/brake peddle. This prompted inadvertent, full braking on the side opposite that of the applied rudder.

According to the pilot, he applied right rudder to get the airplane onto the runway centerline, after he touched down to the left of center, the foot of the occupant in the front seat was pressed onto the opposite brake peddle causing the airplane to react slowly. As the airplane crossed the centerline the pilot applied left rudder to follow the track of the centerline. This had no effect, due to the inadvertent force being applied to the right rudder/brake pedal by the passenger, and the airplane continued off the right side of the runway. The harder the pilot applied the rudder, the harder the opposite brake was actuated. As the airplane started to depart the runway, the pilot said he applied left brake in a final attempt to steer the aircraft back onto the runway. Inertia caused the airplane to nose over. The pilot shut the airplane down and he and the passenger egressed from the inverted airplane.

Aircraft

Registration
N2951S
Reported as
Stroud SKY Bolt
Category
Airplane, amateur-built
Serial number
001
Airframe hours
52
Engine
Lycoming IO540-B4B5, 260 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Joe E Mcglothlin
Registered owner
Danny C. Stroud
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Annual · December 13, 1997 · 22 hours before
Departed
8A7
Airport
8A7 · Twin Lakes Airport, runway 9, 2,950 × 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
52
Certificates
Commercial, Airline transport
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 1, Valid Medical--w/ waivers/lim
Seat
Rear
Flight hours
26,000 total · 35 in this make and model · 26,000 as pilot in command · 300 in the last 90 days · 95 in the last 30 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
260° at 6 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
88 °F, dew point 30 °F
Altimeter
30.00 inHg
Observed at
INT, 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.