Stall / Spin · NTSB ANC13FA093

CESSNA 170B — Glennallen, AK

1 fatal Low-time pilotLow altitude
DateSeptember 6, 2013
LocationGlennallen, AK
AircraftCESSNA 170B
Purpose of flightPersonal
ConditionsDay · Visual Meteorological Cond
Phase / occurrenceManeuvering-low-alt flying Aerodynamic stall/spin
Pilot age41
Pilot total time186 hrs · Low time
Time in typeUnknown
Fatalities1

Probable cause

The pilot’s failure to maintain adequate airspeed while maneuvering at a low altitude, which resulted in an aerodynamic stall/spin and impact with the ground.

NTSB findings

  • Aircraft-Aircraft oper/perf/capability-Performance/control parameters-Airspeed-Not attained/maintained - C
  • Personnel issues-Task performance-Use of equip/info-Aircraft control-Pilot - C

What happened

The pilot departed a remote, off-airport site to search for a moose he had shot earlier in the day. A witness observed the airplane perform a series of low-altitude maneuvers before flying by his location about 80 to 100 feet above the ground. The airplane then began a left turn, and the nose of the airplane pitched down abruptly and began to spin. The airplane subsequently descended vertically, nose first, and it collided with the tundra and brush-covered terrain.

A postaccident examination of the airframe and engine revealed no mechanical malfunctions or anomalies that would have precluded normal operation.

Given the lack of mechanical deficiencies with the airplane and engine, the witness statements, and the nature of the damage to the airplane, it is likely that the pilot inadvertently stalled and spun the airplane at a low altitude and was unable to recover.

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 →