Piper PA-34-220T accident near Roy, Utah, July 24, 2024

The NTSB's narrative final · quoted from the NTSB record

The flight instructor and pilot receiving instruction reported that during a local instructional flight, they extended the landing gear; however, the right main landing gear indicator did not show that the landing gear was down and locked. After briefly troubleshooting, they performed a low approach so the airport traffic control tower controller could observe the landing gear condition. After maneuvering near the runway, they extended the upwind leg of the traffic pattern by 2 miles before turning left crosswind. During the crosswind turn, the pilot receiving instruction advanced the power to the left engine, while the flight instructor simultaneously shut down the right engine to avoid damage to the propeller and right engine if the right main landing gear were to collapse upon landing. The flight instructor reported that after shutting down the right engine, initially the airplane was able to maintain altitude and airspeed with maximum power on the left engine. Once established on downwind, the “over-boost” light illuminated on the annunciator panel, consistent with the operating engine exceeding the manifold pressure limit of 40.5 inches of mercury. The flight instructor told the pilot receiving instruction to retard the throttle to not over-boost the left engine; however, the flight instructor reported that slight movement of the throttle resulted in a decrease in manifold pressure to about 23–25 inches of mercury. As the airplane passed midfield, the instructor noticed the airplane was unable to maintain altitude and began the steps to restart the right engine; however, due to their altitude and airspeed, he aborted the restart attempt and decided to land on a road south of the runway. The flight instructor took control of the airplane and began to maneuver toward the road. During the landing process, the airplane struck multiple trees and impacted a road before it came to rest upright against a tree in the front yard of a residence. Postaccident examination of the recovered wreckage revealed no evidence of any preimpact mechanical malfunction that would have precluded normal operation. Damage sustained to the airframe precluded functional testing of the landing gear system. The investigation was unable to determine the reason for the activation of the right main landing gear indicator.

The complete narrative as the NTSB published it. The NTSB's docket holds the report as a PDF and any photographs, statements and other documents from the investigation.

Photographs from the investigation 4 pictures from the NTSB's docket, as the NTSB released them

Photograph 1 – Left Side View of AirplanePhotograph 2 – Right Side View of AirplanePhotograph 3 – Overall View of Main WreckagePhotograph 4 – View of Right Engine

The NTSB's photographs with the NTSB's captions, at screen size. Open a picture to see it full size or to report one that should not be shown.