ERA09CA008

NTSB accident investigation · Aviat A-1B · Mooresville, NC · October 4, 2008

Accident · No injuriesData collectionFinal report
Date
October 4, 2008, 13:00 local (17:00 UTC)
Place
Mooresville, NC
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N367SAAviat A-1B
Defining event
Landing-flare/touchdown: Abnormal runway contact
Weather
Visual (VMC) · Day
Status
Completed · report January 22, 2009
Report
Approved by Office Director
NTSB office
Eastern Region Aviation
Parties
FAA/FSDO
FAA report
20081004856959A
Case key
69239

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 improper flare while landing. Contributing to the accident was the pilot's lack of recent experience.

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.

Experience/qualifications: recent experiencePersonnel issues › Experience/knowledge · PilotAviat A-1B: 1 caseAll aircraft: 76 casesProbable cause
Action: incorrect action performancePersonnel issues › Action/decision · PilotAviat A-1B: 3 casesAll aircraft: 1,386 casesProbable cause
Performance/control parameters: landing flareAircraft › Aircraft oper/perf/capability · Incorrect use/operationAviat A-1B: 2 casesAll aircraft: 1,285 casesProbable cause

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

According to the pilot, while landing an Aviat A-1B on runway 14, during the flare/touchdown, the "airplane bounced once, and then settled gently on the main wheels." The airplane began to drift slightly to the right and he added left aileron and left rudder to align his longitudinal axis with the centerline of the runway. At that point, the tail wheel touched down and abruptly swung to the right, causing the airplane to become almost perpendicular with the runway. The right main gear collapsed and the right wing impacted the ground. The pilot and passenger egressed the airplane without injury. The pilot also reported that the winds were light and variable at the time of the accident. Examination of the airplane by a Federal Aviation Administration inspector found that when the pilot bounced the airplane, he had struck the tail wheel and damaged it. When the damaged tail wheel touched down the second time, it caused the airplane to ground loop. The pilot's total flight time in all aircraft was recorded at 210.7 hours, with 32.1 hours in make and model. The pilot stated that he has logged 1 hour in make and model in the last 90 days and 1 hour in make and model in the last 30 days.

Factual narrative

According to the pilot, while landing an Aviat A-1B on runway 14, during the flare/touchdown, the "airplane bounced once, and then settled gently on the main wheels." The airplane began to drift slightly to the right and he added left aileron and left rudder to align his longitudinal axis with the centerline of the runway. At that point, the tail wheel touched down and abruptly swung to the right, causing the airplane to become almost perpendicular with the runway. The right main gear collapsed and the right wing impacted the ground. The pilot and passenger egressed the airplane without injury. The pilot also reported that the winds were light and variable at the time of the accident. Examination of the airplane by a Federal Aviation Administration (FAA) inspector found that when the pilot bounced the airplane, he had struck the tail wheel and damaged it. When the damaged tail wheel touched down the second time, it caused the airplane to ground loop. The pilot's total flight time in all aircraft was recorded at 210.7 hours, with 32.1 hours in make and model. The pilot stated that he has logged 1 hour in make and model in the last 90 days and 1 hour in make and model in the last 30 days.

Aircraft

Registration
N367SA
Reported as
Aviat A-1B
Category
Airplane
Serial number
2197
Airframe hours
370.6
Engine
Lycoming O360-A1P, 180 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Standard, Normal
Last inspection
Annual · June 24, 2008
Departed
J9F · Concord, NC
Destination
14A · Mooresville, NC
Airport
14A · Lake Norman Airport, runway 14, 3,147 × 40 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
32
Injuries
None
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 2, Without waivers/limitations
Last flight review
October 30, 2006
Seat
Front
Flight hours
210 total · 32 in this make and model · 150 as pilot in command · 2 in the last 90 days · 2 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
Calm
Visibility
10 statute miles
Lowest ceiling
None
Temperature
82 °F, dew point 54 °F
Altimeter
30.19 inHg
Observed at
JQF, 16 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.

Other investigations on N367SA · 1

Matched to the same aircraft by N-number and date.