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ERA25LA043

2024-11-09 · Alcoa, Tennessee, United States · None · 1 aircraft · Status: Completed

Airport TYS

Current FAA registration · N143MG

Make / Model
CESSNA 310K
Engine
CONT MOTOR I0-470 SERIES (260 hp)
Seats / Engines
6 seats · 2 engines
Last airworthiness date
19660504
ADS-B equipped
Yes — Mode-S A0AEEF

Source: FAA Aircraft Registry (releasable master file).

Aircraft involved

Probable cause & findings

The failure of the left engine throttle control shaft bushing during taxi, resulting in a full asymmetric power condition and a taxiway excursion.

Factual narrative

The pilot reported that his approach and landing were normal. After exiting the runway, while on a taxiway, the airplane “swerved to the right and seemed to accelerate.” Unable to control braking and steering, the airplane departed the taxiway to the right and proceeded through a steep depression before colliding with a wind sensor pole. The pilot secured the airplane and was met by first responders. The airplane’s right wing and fuselage were substantially damaged during the accident sequence. Postaccident examination of the airplane revealed that the brass splined bushing on the left engine throttle control shaft was stripped, which resulted in an uncontrollable, full power application to that engine. The wheel brakes were examined and no anomalies were found; the brakes held the airplane in place with the left engine at full power during a test run. Source: NTSB Aviation Accident Database Retrieved: 2026-02-12

NTSB Findings

FAA avdata. C = Cause, F = Factor.

  • — Aircraft-Aircraft power plant-Engine fuel and control-Fuel control/carburetor-Fatigue/wear/corrosion

Verbatim from NTSB's published report. Source file NTSB_2024_ERA25LA043.txt. Findings + structured fields enriched from FAA avall.mdb. Full investigation docket on data.ntsb.gov ↗.

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