The incident flight, the pitch trim switch had been installed in an inverted Removed from the yoke, marks were observed that indicated at some point before Untucked pigtail (right) that caused the chafing, are seen in these photos Wires connecting the horizontal stabilizer actuator control electronics to theĬaptain’s pitch trim switch in an Embraer-175 (left) and an incorrectly Of the forward mechanical stop bolt safety wire. The chafing was caused by contact with the incorrectly untucked pigtail

Insulation around wires connecting the horizontal stabilizer actuator controlĮlectronics to the captain’s pitch trim switch and autopilot/trim disconnectīutton. Under investigation, post-incident examination of the airplane revealed chafed The airport and safely landed the plane about 15 minutes after declaring theĪlthough the cause of the incident remains There were six passengers on board the airplane. Pitch trim-related flight control issue and difficulty controlling theĪirplane. The flight crew declared an emergency shortly after takeoffįrom Hartsfield-Jackson Atlanta International Airport, Atlanta, reporting a 6, 2019, incident involving Republic Airways flight 4439, anĮmbraer EMB-175. The investigation and recommendations stemįrom a Nov. Memory items for pilots to address unintended operation of the pitch trim Relating to the pitch trim switch, and potential limitations in checklist

The recommendations are designed to address areas ofĬoncern including wire chafing, application of Embraer service bulletins To the National Civil Aviation Agency of Brazil (ANAC) and four to the FederalĪviation Administration. The NTSB issued six safety recommendations Issued 10 safety recommendations Wednesday to address safety issues identified Ongoing investigation of an incident involving an Embraer-175 airplane, the NTSB

Preliminary findings