FTW00LA230

NTSB accident investigation · Aeronca 65-CA · Liberty Hill, TX · August 14, 2000

Accident · Minor injuriesLimited investigationFinal report
Date
August 13, 2000, 19:30 local (Aug 14, 2000, 00:30 UTC)
Place
Liberty Hill, TX
Injuries
1 minor
Damage
Substantial damage
Phase of flight
Enroute
Aircraft
N33783Aeronca 65-CA
Weather
Visual (VMC) · Day
Status
Completed · report September 19, 2001
Report
Approved by Office Director
FAA report
20000813007629A
Case key
49985

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 inadvertent activation of the left rudder control, which resulted in a loss of control while in cruise flight.

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 flightCruise
Rudder - inadvertent activationPilot in commandCause
In flight collision with objectDescent - uncontrolled
Object - tree(s)

Analysis

During cruise flight, the pilot felt a bump and the airplane began a level turn to the left. He applied right rudder; however, the airplane continued to turn left. The pilot further reported that the airplane went under some wires prior to impacting trees. Flight control continuity was established to all flight controls; however, the tab where the left rudder cable attaches to the torque tube arm for the left rudder pedal was found damaged. The torque tube arm was located just inside of where the pilot's right foot would rest. The pilot stated that he "placed his right foot on the [left rudder] torque tube arm and not on the right rudder. This caused the start of the left yaw. I then pushed hard on the torque tube arm and this caused the [airplane] to flat spin to the left, spin recovery did not occur because I was holding the left rudder all the way to the ground."

Factual narrative

On August 13, 2000, at 1930 central daylight time, an Aeronca 65-CA single-engine airplane, N33783, was substantially damaged during impact with trees and terrain following a loss of control in cruise flight near Liberty Hill, Texas. The airplane was registered to and operated by the pilot. The private pilot, sole occupant, sustained minor injuries. Visual meteorological conditions prevailed, and a flight plan was not filed for the 14 Code of Federal Regulations Part 91 personal flight. The flight originated from Sunrise Beach Village, Texas, at 1830.

The pilot reported to FAA inspectors, who responded to the accident site, that during cruise flight, he felt a bump and the airplane began a level turn to the left. He applied right rudder; however, the airplane continued to turn left. The pilot further reported that the airplane went under some wires prior to impacting trees.

A witness reported to the FAA inspectors that he observed two airplanes flying toward him at about 300-500 feet agl. The airplane on the left side made a "sudden flat left turn" and descended from view behind some trees.

Examination of the airplane by an FAA inspector revealed that the left wing tip was damaged, and the right main landing gear was folded under the fuselage. The right wing's spars were damaged, and the pilot's seat structure was torn loose.

Flight control continuity was established to all flight controls; however, the tab where the left rudder cable attaches to the torque tube arm for the left rudder pedal was found damaged. The torque tube arm was located just inside of where the pilot's right foot would rest. The pilot stated that he "placed his right foot on the [left rudder] torque tube arm and not on the right rudder. This caused the start of the left yaw. I then pushed hard on the torque tube arm and this caused the [airplane] to flat spin to the left, spin recovery did not occur because I was holding the left rudder all the way to the ground."

Aircraft

Registration
N33783
Reported as
Aeronca 65-CA
Category
Airplane
Serial number
CA-13531
Airframe hours
3,020
Engine
Continental A-65-8, 65 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
David M. Scuetzeberg
Airworthiness certificate
Standard, Normal
Last inspection
Annual · April 16, 2000 · 20 hours before
Departed
2KL · Sunrise Beach, TX

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
56
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
2,700 total · 108 in this make and model · 2,568 as pilot in command · 13 in the last 90 days · 2 in the last 30 days · 2 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Visibility
10 statute miles
Lowest ceiling
None
Temperature
212 °F

FAA reports on this event · 1

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