ERA17LA083

NTSB accident investigation · Maule MX7 · Carthage, TN · January 11, 2017

Accident · Serious injuriesLimited investigationFinal report
Date
January 11, 2017, 15:40 local (21:40 UTC)
Place
Carthage, TN
Injuries
1 serious
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N3156KMaule MX7
Defining event
Landing-flare/touchdown: Loss of control in flight
Weather
Visual (VMC) · Day
Status
Completed · report November 6, 2018
Report
Approved by Office Director
NTSB office
Eastern Region Aviation
Parties
FAA FSDO
FAA report
20170111000059A
Case key
94593

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 inadequate compensation for gusting tailwind conditions, which resulted in a loss of airplane control during the landing flare.

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.

Use of equip/info: aircraft controlPersonnel issues › Task performance · PilotMaule MX-7-160: 3 casesAll aircraft: 9,295 casesProbable cause
Performance/control parameters: lateral/bank controlAircraft › Aircraft oper/perf/capability · Not attained/maintainedMaule MX-7-160: 1 caseAll aircraft: 390 casesProbable cause
Wind: gustsEnvironmental issues › Conditions/weather/phenomena · Response/compensationMaule MX-7-160: 1 caseAll aircraft: 1,199 casesProbable cause
Wind: gustsEnvironmental issues › Conditions/weather/phenomena · Effect on operationMaule MX-7-160: 1 caseAll aircraft: 1,199 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

The commercial pilot was landing on his 1,100 ft-long private grass airstrip. He set up for a landing to the north due to obstacles and the runway's upslope in that direction. A witness reported that the wind was "blowing hard," gusting, and variable at the time of the landing. The witness described the approach as normal until just before touchdown, when the left wing dropped and the right wing rose. The airplane then collided with the ground and came to rest on its nose with structural damage to the left wing and forward fuselage. The pilot reported that there were no mechanical malfunctions or failures before the accident, and the witness reported that the engine sounded normal during the event. Recorded weather information from nearby airports indicated wind from the south; one airport reported gusts of up to 29 knots. The pilot subsequently reported that the accident was the result of wind gusts that he had not anticipated.

Factual narrative

On January 11, 2017, at 1540 central standard time, a Maule MX-7-160, N3156K, was substantially damaged during landing at a private, grass airstrip at Carthage, Tennessee. The commercial pilot was seriously injured. The airplane was registered to and operated by the pilot under the provisions of 14 Code of Federal Regulations Part 91 as a personal flight. Day, visual meteorological conditions prevailed at the time, and no flight plan was filed. The flight originated at Lebanon Municipal Airport (M54), Lebanon, Tennessee, at 1518.The pilot reported that the preflight inspection, departure, and cruise portions of the flight were uneventful. He entered the traffic pattern at his property, which consisted of a grass airstrip that was about 1,100 feet in length. He maneuvered the airplane for a landing to the north, which was always the landing direction due to runway slope and obstacles. He checked the wind at the departure airport prior to landing and recalled that it was out of the south at 12 knots. He also checked the wind sock at his airstrip prior to landing. Due to his injuries, he did not recall the events of the landing sequence. A witness observed the accident and the weather conditions at the scene. He reported that the pilot arrived over the airstrip, and circled around the property. He then set up for a landing to the north. The wind was "really blowing hard" at the time, and he described the wind as strong and gusting, and coming from different directions. Just prior to the airplane touching down, the left wing dropped suddenly, and the right wing came up. The airplane then went nose down and stopped. He stated that the engine was "running great, no misfires or roughness." An inspector with the Federal Aviation Administration responded to the accident site and examined the wreckage. Structural damage to left wing and fuselage was confirmed. An on-scene examination of the airframe, engine, and fuel system did not reveal evidence of a mechanical malfunction. The initial impact point was about 900 feet north of the approach end of runway 35, and about 200 feet west of the runway. The initial ground impact point matched damage to the left wingtip. The airplane came to rest in a nose low attitude, 30 feet to the west of the initial ground impact point. He also noted that runway 35 sloped uphill, with a total elevation change of 50-70 feet. Murfreesboro Municipal Airport (MQY), Murfreesboro, Tennessee was located about 30 nautical miles southwest of the accident site. The MQY weather at 1556 included wind from 180 degrees at 12 knots with gusts to 20 knots. Nashville International Airport (BNA), Nashville, Tennessee, was located about 35 nautical miles west-southwest of the accident site. The BNA weather at 1553 included wind from 190 degrees at 16 knots, gusting to 23 knots, with a recorded peak wind from 190 degrees at 29 knots. After the accident, the pilot reported that there was no mechanical failure or malfunction with the airplaneprior to the accident. He also reported that the accident was the result of wind gusts that were not anticipated by him.

Aircraft

Registration
N3156K
Reported as
Maule MX7 (160)
Category
Airplane
Serial number
19036C
Built
1995
Airframe hours
1,057
Engine
Lycoming O-320-B2D, 160 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Standard, Normal
Last inspection
Annual · August 28, 2016 · 325 hours before
Departed
M54 · Lebanon, TN
Destination
Carthage, TN
Airport
runway 35, 1,100 × 75 ft, grass/turf
Equipment
ADS-B, Handheld GPS, Stall warning system, Onboard weather

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
23
Injuries
Serious
Certificates
Commercial, Flight instructor
Airplane ratings
Single-engine land
Instrument ratings
Airplane
Medical
Class 3, With waivers/limitations
Last flight review
November 25, 2015
Seat
Left
Restraint
3-point
Flight hours
695 total · 478 in this make and model · 605 as pilot in command · 17 in the last 90 days · 4 in the last 30 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
180° at 12 knots, gusting 20
Visibility
10 statute miles
Lowest ceiling
None
Temperature
66 °F, dew point 57 °F
Altimeter
30.03 inHg
Observed at
MQY, 30 nm away

Docket · 5

The files NTSB released with the investigation on April 24, 2018, on NTSB’s docket system: statements, records, photos and specialists’ reports. 1.9 MB in all.

FAA reports on this event · 1

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