ATL95LA011

NTSB accident investigation · Cessna 185 · Elizabethton, TN · November 3, 1994

Accident · No injuriesLimited investigationFinal report
Date
November 3, 1994, 15:00 local (20:00 UTC)
Place
Elizabethton, TN
Injuries
4 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N6688HCessna 185
Weather
Visual (VMC) · Dawn
Status
Completed · report May 18, 1995
Report
Approved by Office Director
FAA report
19941103037339A
Case key
3495

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 flexing of the rudder pedal control locking assembly which resulted in the collapse of the co-pilot's left pedal during heavy braking.

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.

Airframe/component/system failure/malfunctionLanding - roll
Flt control syst,rudder control - unlocked
Loss of control - on ground/waterLanding - roll
Nosewheel steering - not possiblePilot in command
Brakes(normal) - not possiblePilot in command
Other gear collapsedLanding - roll
Landing gear,main gear - overload

Analysis

During a three point landing demonstration, the left pedal on the co-pilot's side of the cockpit collapsed, and the instructor pilot lost control of the airplane. Examination of the rudder pedal assembly failed to disclose a component failure. According to the maintenance inspector, the locking assembly was re-engaged and the rudder assembly operated normally. The inspector concluded that, heavy braking caused the locking assembly to flex enough to release. The maintenance inspector also stated that there had been a few malfunctions of the locking assembly. Those incidents reported by missionary pilots were corrected by disabling the stow assembly, and locking the pedals in the upright position.

Factual narrative

On November 3, 1994, at 1500 eastern standard time, a Cessna 185, N6688H, went off the right side of runway 24 during an attempted landing at Elizabethton Municipal Airport, Elizabethton, Tennessee. The instructional flight operated under 14 CFR Part 91, with no flight plan filed. Visual weather conditions prevailed at the time of the accident. The airplane sustained substantial damage, and the instructor pilot and three other pilots were not injured. The flight departed Elizabethton at 1300 hours.

According to the certified flight instructor, he and three other private pilots were conducting routine training when he lost control of the airplane during a landing attempt. The airplane had rolled 500 feet when the left pedal collapsed. The airplane veered off the right side of runway and collided with the ground. A preliminary examination of the airplane disclosed that the instructor's left pedal unlocked and collapsed.

Examination of the rudder pedal assembly failed to disclose any failed components. The examination disclosed some deformation to the locking assembly. The steering and braking systems operated normally, after the pedal assembly was restored to the normal operational position. The company maintenance inspector concluded that heavy braking caused the locking components to flex enough to collapse the left pedal assembly. The company maintenance inspector stated that rudder pedal malfunctions experienced by mission pilots were corrected by disabling the stow feature.

Aircraft

Registration
N6688H
Reported as
Cessna 185
Category
Airplane
Serial number
185-03335
Airframe hours
2,694
Engine
Continental IO-520D, 300 horsepower, reciprocating
Damage
Substantial damage
Flight
Instructional · Part 91
Registered owner
Moody Bible Institute
Airworthiness certificate
Standard, Normal
Last inspection
100 hour · October 7, 1994 · 39 hours before
Departed
0A9
Airport
0A9 · Elizabethton Municipal, runway 24, 4,000 × 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
44
Certificate
Airline transport
Airplane ratings
Single-engine sea, Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
14,692 total · 2,500 in this make and model · 14,000 as pilot in command · 159 in the last 90 days · 43 in the last 30 days · 5 in the last 24 hours

Weather

Conditions
Visual (VMC) · Dawn
Wind
200° at 3 knots
Visibility
30 statute miles
Lowest ceiling
None
Temperature
70 °F, dew point 34 °F
Altimeter
30.00 inHg
Observed at
TRI, 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.