Incident Overview

Date: Wednesday 8 February 2023
Aircraft Type: Cirrus SF50 Vision Jet G2+
Owner/operator: Mag Aviation, LLC
Registration Number: N426SJ
Location: Waukesha Airport, WI (UES) – ÿ United States of America
Phase of Flight: Landing
Status: Substantial
Casualties: Fatalities: 0 / Occupants: 2
Component Affected: Angle of attack vane coverAngle of attack vane cover
Investigating Agency: NTSBNTSB
Category: Accident
During takeoff, the pilot reported a grinding noise accompanied by a subsequent impact, prompting a return to the departure airport for precautionary landing. The stall warning and stick shaker activated, and the pilot utilized the autopilot disconnect to regain control. Upon touchdown, the aircraft bounced and exited the runway, causing significant damage to the lower forward fuselage. The failure to remove the angle of attack vane cover is believed to be the probable cause.During takeoff, the pilot reported a grinding noise accompanied by a subsequent impact, prompting a return to the departure airport for precautionary landing. The stall warning and stick shaker activated, and the pilot utilized the autopilot disconnect to regain control. Upon touchdown, the aircraft bounced and exited the runway, causing significant damage to the lower forward fuselage. The failure to remove the angle of attack vane cover is believed to be the probable cause.

Description

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. Probable Cause and Findings: 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.

Primary Cause

Failure to maintain aircraft control during landing due to inadequate angle of attack vane cover removal.Failure to maintain aircraft control during landing due to inadequate angle of attack vane cover removal.

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