CEN16LA206

NTSB accident investigation · Beech A23-24 · Clintonville, WI · May 30, 2016

Accident · No injuriesLimited investigationFinal report
Date
May 30, 2016, 03:30 local (08:30 UTC)
Place
Clintonville, WI
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N5771VBeech A23-24
Defining event
Landing-flare/touchdown: Hard landing
Weather
Visual (VMC) · Night
Status
Completed · report October 6, 2016
Report
Approved by Office Director
NTSB office
Central Region
Parties
FAA Milwaukee FSDO
FAA report
20160530005349A
Case key
93304

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

On this page

Probable cause

The pilot’s failure to maintain the proper glidepath during the night visual approach, which resulted in impact with a runway threshold light, and his improper landing flare, which resulted in a hard landing. Contributing to the accident was the pilot's fatigue.

Findings · 3

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: landing flareAircraft › Aircraft oper/perf/capability · Not attained/maintainedBeech A23-24: 3 casesAll aircraft: 1,285 casesProbable cause
Performance/control parameters: descent/approach/glide pathAircraft › Aircraft oper/perf/capability · Not attained/maintainedBeech A23-24: 2 casesAll aircraft: 809 casesProbable cause
Alertness/FatiguePersonnel issues › Physical · PilotBeech A23-24: 1 caseAll aircraft: 48 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 pilot was completing a cross-country flight from Florida to Wisconsin. He stated that he got a full night's sleep prior to departing on the flight around 1100. About 0330, he was approaching the airport for the third and final fuel stop of the trip. Although the surface observation at the airport indicated that night visual meteorological conditions prevailed, the pilot noticed that, as he approached the airport, the runway and precision approach path indicator (PAPI) lights were partially obscured by ground fog. About 250 ft above ground level on final approach, the PAPI lights indicated that the airplane was below the approach path, and the pilot attempted to correct by applying engine power. He reported that the landing felt normal, then the nose landing gear "gave out," and the airplane skidded about 300 ft down the runway before coming to rest. Examination of the runway surface revealed tire skid marks consistent with the airplane touching down about 40 ft right of the runway centerline at the beginning of the paved surface. The airplane's left horizontal stabilizer displayed an indentation and paint transfer consistent with impact with a runway threshold light. Postaccident examination of the airplane revealed no preexisting anomalies that would have precluded normal operation. It is possible that the pilot may have lost visual contact with the airport environment due to ground fog as the airplane neared the runway, which resulted in the short and right-of-centerline landing. Although the pilot stated that he did not feel tired during the accident flight, it is likely that he was experiencing symptoms of fatigue as a result of his extended time awake prior to the accident.

Factual narrative

On May 30, 2016, about 0330 central daylight time (all times cdt), a Beech A23-24, N5771V, sustained substantial damage during a hard landing on runway 32 (4,600 ft by 75 ft, asphalt) at the Clintonville Municipal Airport (CLI), Clintonville, Wisconsin. The pilot and one passenger were not injured. The airplane was registered to and operated by a private individual under the provisions of the 14 Code of Federal Regulations Part 91 as a personal flight. Night visual meteorological conditions prevailed for the cross-country flight, which was not operated on a flight plan. The flight departed the Perry County Municipal Airport (TEL), Tell, Indiana, about 0100. The pilot reported that he initially departed North Perry Airport (HWO), Hollywood, Florida, on May 29, 2016, and landed at the Palatka Municipal Airport (28J), Palatka, Florida, after a 3 hour 20 minute flight. A fuel receipt indicated that the airplane was fueled with 38.8 gallons of fuel at 1430 while at 28J. The pilot's next fuel stop was at TEL and the fuel receipt indicated that the airplane was fueled with 47 gallons of fuel at 2359. The pilot reported that he planned to land at CLI for fuel and then proceed to his destination airport, Langlade County Airport, Antigo, Wisconsin, about 36 nm northwest of CLI. The pilot reported that the total time from when he departed HWO until the time of the accident was about 15 hours 30 minutes. He stated that he had a full night of sleep before the initial flight, and was able to eat and "chill out" at TEL before departing on the last leg of flight. He reported that he felt "great" during the last leg of flight and was not tired when he arrived at CLI for landing. The pilot reported that the weather during the accident flight was good and without any thunderstorms or rain showers. However, although the surface weather observation at CLI indicated visual meteorological conditions, the pilot reported that there was ground fog at CLI when he arrived for landing. He could see the runway and precision approach path indicator (PAPI) lights through the ground fog on his approach. During the final approach, the PAPI lights were white/red down to about 250 ft above ground level. Then the lights went red/red, indicating that the airplane was below the glidepath. He corrected for the low altitude by adding power. The airplane was lined up with the runway, and he was "looking to land at the start of the lighted runway." He stated that the airplane touch down felt normal, perhaps with the back tire[s] hitting the runway first. However, he stated that, "once on the ground, then I felt the nose wheel give out, dropping the plane down on top of the nose wheel and using it as a skid plate until we stopped about 300 feet down the runway." A Federal Aviation Administration inspector examined the airplane and runway at CLI. The examination of runway 32 revealed that one of the runway threshold lights, which was painted yellow, had been struck. There was a tire impactmark near the beginning of the runway's asphalt surface about 40 ft right of the runway's centerline. This tire skid mark continued down the runway for about 22 ft to where the first propeller strike was observed. A second propeller strike mark was located about 5 1/2 ft from the first propeller strike. A long scrape mark began near the second propeller strike and continued to where the airplane came to rest, which was about 370 ft from the start of the asphalt and near the runway centerline. The examination of the airplane revealed that the leading edge of the left horizontal stabilizer was dented and had a yellow paint transfer mark on it. The nose landing gear had collapsed. The nose wheel was lodged under the airplane and it formed an indentation into the belly skin. Both wings exhibited buckling and twisting with damage to the wing spars.

Aircraft

Registration
N5771V
Reported as
Beech A23-24
Category
Airplane
Serial number
MA-22
Built
1966
Airframe hours
2,192
Engine
Lycoming I0-360-A2B, 200 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Standard, Normal
Last inspection
Annual · June 12, 2015 · 78 hours before
Departed
TEL · Tell, IN
Destination
CLI · Clintonville, WI
Airport
CLI · Clintonville Municipal Airport, runway 32, 4,600 × 75 ft, asphalt
Equipment
Electronic multifunction display, Electronic flight bag or handheld device, Angle of attack indicator, Stall warning system, Handheld GPS, Electronic primary flight display

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
33
Injuries
None
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, With waivers/limitations
Last flight review
June 19, 2015
Seat
Left
Restraint
Lap only
Flight hours
168 total · 168 in this make and model · 42 in the last 90 days · 25 in the last 30 days

Weather

Conditions
Visual (VMC) · Night
Wind
280° at 4 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
59 °F, dew point 54 °F
Altimeter
29.95 inHg
Observed at
CLI

Docket · 4

The files NTSB released with the investigation on August 8, 2016, on NTSB’s docket system: statements, records, photos and specialists’ reports. 5.9 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.

Other investigations on N5771V · 1

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