NYC08CA125

NTSB accident investigation · Cessna 140 · Halls, TN · February 19, 2008

Accident · No injuriesData collectionFinal report
Date
February 19, 2008, 17:45 local (23:45 UTC)
Place
Halls, TN
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N2086VCessna 140
Defining event
Landing-landing roll: Loss of control on ground
Weather
Visual (VMC) · Day
Status
Completed · report April 30, 2008
Report
Approved by Office Director
Parties
FAA/FSDO
FAA report
20080219011539A
Case key
67630

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 flight instructor's inadequate remedial action. Contributing to the accident was the student pilot's failure to maintain directional control during the landing roll.

Findings · 4

NTSB’s coded findings. Those marked are part of the probable cause; the rest are factors or other findings. Under each, the cases with the same finding.

Performance/control parameters: directional controlAircraft › Aircraft oper/perf/capability · Not attained/maintainedCessna 140: 27 casesAll aircraft: 3,958 casesProbable cause
Use of equip/info: aircraft controlPersonnel issues › Task performance · Student/instructed pilotCessna 140: 56 casesAll aircraft: 9,295 casesProbable cause
Action: delayed actionPersonnel issues › Action/decision · PilotCessna 140: 6 casesAll aircraft: 894 casesProbable cause
Airport facilities/designEnvironmental issues › Operating environment · Not specifiedCessna 140: 1 caseAll aircraft: 52 cases

Sequence of events

The events NTSB coded, in order, by phase of flight. The defining event is the one that best describes the accident. Under each, the cases with the same event anywhere in their sequence.

Analysis

The certified flight instructor (CFI) was preparing the student pilot to solo. The airplane touched down uneventfully, however, toward the end of the landing roll, the CFI instructed the student pilot to make a 180-degree turn, and back-taxi on the runway. As the student pilot began a right turn, the airplane traveled over a hump in the runway, which startled the student pilot. The student pilot applied right rudder in an attempt to move away from the hump, and the CFI perceived him as over-controlling the airplane. The CFI inputted left rudder pedal; however, the student pilot had also depressed the right brake. The airplane continued to turn right, the left main landing gear traveled off the runway, and the left wing contacted a berm causing substantial damage. Examination of the wreckage did not reveal any preimpact mechanical malfunctions, nor did the pilots report any.

Factual narrative

The certified flight instructor (CFI) stated that he was preparing the student pilot to solo in a Cessna 140. The airplane touched down uneventfully on runway 36, a 4,700-foot-long, 75-foot-wide, concrete runway. Toward the end of the landing roll, the CFI instructed the student pilot to make a 180-degree turn, and back-taxi on the runway. As the student pilot began a right turn, the airplane traveled over a hump in the runway, which startled the student pilot. The student pilot applied right rudder in an attempt to move away from the hump, and the CFI perceived him as over-controlling the airplane. The CFI inputted left rudder pedal; however, the student pilot had also depressed the right brake. The airplane continued to turn right, and the left main landing gear traveled off the runway, into a berm. The left wing subsequently struck the berm, and sustained damage to the wing spar. Examination of the wreckage by a Federal Aviation Administration inspector did not reveal any preimpact mechanical malfunctions, nor did the pilots report any.

Aircraft

Registration
N2086V
Reported as
Cessna 140
Category
Airplane
Serial number
14369
Airframe hours
3,000
Engine
Continental C-85, 85 horsepower, reciprocating
Damage
Substantial damage
Flight
Instructional · Part 91
Registered owner
David A Dalquist
Airworthiness certificate
Standard, Utility
Last inspection
Annual · August 1, 2007
Departed
M31 · Halls, TN
Destination
M31 · Halls, TN
Airport
M31 · Arnold Field, runway 36, 4,700 × 75 ft, concrete

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 · 2

As NTSB recorded them. NTSB leaves out names.

Role
Flight instructor
Age
68
Injuries
None
Certificates
Flight instructor, Commercial
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 2, With waivers/limitations
Last flight review
February 1, 2006
Seat
Rear
Flight hours
8,448 total · 33 in this make and model · 85 in the last 90 days · 3 in the last 30 days · 3 in the last 24 hours
Role
Student pilot
Age
48
Injuries
None
Certificate
Student
Medical
Class 3, With waivers/limitations
Seat
Left
Flight hours
48 total · 6 in this make and model · 20 as pilot in command · 6 in the last 90 days · 5 in the last 30 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
180° at 3 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
43 °F, dew point 19 °F
Altimeter
30.15 inHg
Observed at
DYR, 5 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.