Loss of Control in Flight · NTSB ERA20FA025

Vans RV 4 — Middleburg, FL

1 fatal High-time pilot
DateOctober 31, 2019
LocationMiddleburg, FL
AircraftVans RV 4 (amateur-built)
Purpose of flightPersonal
ConditionsDay · Visual Meteorological Cond
Phase / occurrenceEnroute-cruise Collision with terr/obj (non-CFIT)
Pilot age72
Pilot total time17,868 hrs · High time
Time in type652 hrs
Fatalities1

Probable cause

Impact with power lines for reasons that could not be determined based on available evidence.

NTSB findings

  • Personnel issues-Task performance-Use of equip/info-(general)-Pilot
  • Aircraft-Aircraft oper/perf/capability-Performance/control parameters-Altitude-Not attained/maintained
  • Not determined-Not determined-(general)-(general)-Unknown/Not determined

What happened

According to a family member, the pilot intended to conduct a brief local flight. A witness at the departure airport reported that he heard an airplane take off. He did not identify the airplane; however, about 10 minutes later the airport experienced a complete electrical power outage.

The airplane was located in a clearing in a heavily wooded area. The wreckage and accident site were consistent with the airplane impacting powerlines before impacting terrain. Most of the airplane was destroyed by postcrash fire. The engine was examined, and no anomalies were noted.

The pilot had recent diagnoses of several cardiovascular conditions that would increase his risk for an acute cardiovascular event, including severe mitral valve regurgitation, ventricular enlargement, and heart failure; however, there were no autopsy findings or radio communication to determine if the pilot experienced a cardiac event. Post-mortem toxicology detected the impairing medication gabapentin in liver tissue and urine, but it could not be determined if the concentration was at therapeutic or impairing levels; therefore, whether the pilot’s medical conditions or his use of medication contributed to the accident could not be determined.

Given the lack of available evidence, the reason for the airplane’s impact with power lines could not be determined.

An editorial "what led to it / how to avoid it" analysis for this accident is generated separately and will appear here.

View the official NTSB docket →