CEN23LA104

NTSB accident investigation · Cirrus Design SF50 · Waukesha, WI · February 8, 2023

Accident · No injuriesClass 4 · LimitedFinal report
Date
February 8, 2023, 10:00 local (16:00 UTC)
Place
Waukesha, WI
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N426SJCirrus Design SF50
Defining event
Landing-flare/touchdown: Loss of control in flight
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
Investigation class
Class 4 - Basic report with no Prelim publish
NTSB office
Central Region
Parties
FAA-FSDO
FAA report
20230208001249A
Case key
106702

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 failure to maintain aircraft control during landing. Contributing to the accident was the pilot’s inadequate preflight inspection removal of the angle of attack vane cover.

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.

Inspection: preflight inspectionPersonnel issues › Task performance · PilotCirrus Design SF50: 1 caseAll aircraft: 551 casesProbable cause
Use of equip/info: aircraft controlPersonnel issues › Task performance · PilotCirrus Design SF50: 3 casesAll aircraft: 9,295 casesProbable cause
Performance/control parameters: directional controlAircraft › Aircraft oper/perf/capability · Not attained/maintainedCirrus Design SF50: 1 caseAll aircraft: 3,958 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 reported that during takeoff, he heard a noise that sounded like “gravel hitting the gear,” which continued after landing gear retraction, and prompted a return to the departure airport for a precautionary landing. He stated that while on the downwind leg, the stall warning aural alert sounded, and the stick shaker activated; the pilot used the autopilot disconnect button to regain control of the airplane. During touchdown, the airplane bounced and exited the runway, which resulted in substantial damage to the lower forward fuselage. Following the accident, the pilot discovered that he had failed to remove the angle of attack vane cover. The pilot reported that there were no preaccident mechanical malfunctions or failures with the airplane that would have precluded normal operation.

Aircraft

Registration
N426SJ
Reported as
Cirrus Design SF50
Category
Airplane
Serial number
0148
Built
2019
Airframe hours
680.6
Engine
Williams International FJ33-5A, 1,846 lbs thrust, turbo fan
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
MAG Aviation, LLC
Airworthiness certificate
Standard, Normal
Destination
Same as departure
Flight plan
IFR
Airport
UES · Waukesha County Airport, runway 28, 5,849 × 100 ft, concrete
Equipment
Electronic primary flight display, Onboard weather, Satellite tracking device, Stall warning system, ADS-B, Airframe parachute, Angle of attack indicator, Auto-pilot, Electronic multifunction display, Data recorder, Electronic flight bag or handheld device

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
59
Injuries
None
Certificate
Private
Airplane ratings
Single-engine land
Instrument ratings
Airplane
Medical
Class 3, With waivers/limitations
Last flight review
January 27, 2023
Seat
Left
Restraint
3-point
Flight hours
396 total · 51 in this make and model · 204 as pilot in command · 57 in the last 90 days · 57 in the last 30 days · 4 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
Calm
Visibility
10 statute miles
Lowest ceiling
None
Temperature
34 °F, dew point 25 °F
Altimeter
30.24 inHg
Observed at
KUES
METAR
KUES 081545Z 00000KT 10SM CLR 01/M04 A3024

Docket · 2

The files NTSB released with the investigation on April 6, 2023, on NTSB’s docket system: statements, records, photos and specialists’ reports. 3.0 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.