Mechanical & Engine Failure · NTSB ERA17FA140

BEECH A36 — Dadeville, AL

2 fatal High-time pilot
DateMarch 28, 2017
LocationDadeville, AL
AircraftBEECH A36
Purpose of flightPersonal
ConditionsDay · Visual Meteorological Cond
Phase / occurrenceEmergency descent Collision with terr/obj (non-CFIT)
Pilot age67
Pilot total time11,000 hrs · High time
Time in type100 hrs
Fatalities2

Probable cause

A loss of engine power for reasons that could not be determined due to postcrash thermal damage to the engine accessories and the airframe. Contributing to the accident was the pilot's failure to navigate to any of the available forced landing sites within gliding distance of the airplane following the loss of engine power.

NTSB findings

  • Not determined-Not determined-(general)-(general)-Unknown/Not determined - C
  • Personnel issues-Action/decision-Info processing/decision-Decision making/judgment-Pilot - F
  • Personnel issues-Task performance-Use of equip/info-Use of available resources-Pilot - F

What happened

The private pilot was conducting a cross-country flight at a cruise altitude of 5,000 ft mean sea level (msl) in day visual meteorological conditions when the airplane experienced a total loss of engine power. Over the next minute, the airplane continued a northerly track before it began a turn to the west as the controller identified the closest public airport, private strip, state highway, and open areas for potential forced landing sites, which the pilot acknowledged. About 3 minutes later, the airplane collided with trees and terrain and was consumed by postcrash fire. All engine accessories were destroyed by fire and could not be examined except for the engine-driven fuel pump, which revealed no anomalies. The engine displayed internal and external thermal damage, but internally displayed signatures consistent with normal wear and lubrication. Tree damage at the site was consistent with a rotating propeller at the time of tree contact.

An NTSB performance specialist plotted potential glide ranges and trajectories for the airplane from the assumed point of engine power loss. About the time of the loss of engine power, the airplane was about 1 mile abeam an abandoned airport. This airport was not plotted on the visual flight rules sectional chart nor was it visible to the controller, and it may not have been readily visible to the pilot due to its location on the right side of the airplane. However, the airplane's projected glide distance and trajectories indicated that the airplane was within gliding distance of numerous open fields as well as a four-lane divided highway with a large grass median. It could not be determined why the pilot chose to forgo any of the potential suitable forced landing sites.

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 →