Low-Altitude Maneuvering · NTSB WPR10FA162

NORTH AMERICAN AT6 — Bakersfield, CA

2 fatal High-time pilotLow altitude
DateMarch 17, 2010
LocationBakersfield, CA
AircraftNORTH AMERICAN AT6
Purpose of flightPersonal
ConditionsDay · Visual Meteorological Cond
Phase / occurrenceManeuvering-low-alt flying Collision with terr/obj (non-CFIT)
Pilot age68
Pilot total time33,300 hrs · High time
Time in type1,750 hrs
Fatalities2

Probable cause

The pilots did not maintain clearance from terrain for undetermined reasons.

NTSB findings

  • Aircraft-Aircraft oper/perf/capability-Performance/control parameters-Altitude-Not attained/maintained - C
  • Not determined-Not determined-(general)-(general)-Unknown/Not determined - C

What happened

The two pilots, one of whom owned the airplane, departed for a personal flight in the airplane, which was equipped with dual flight controls. A witness, who was an acquaintance of the pilot/owner, reported observing the airplane circle his farm, followed by a low pass over the farm at an estimated altitude of 150 to 200 feet above the ground. The witness then observed the airplane depart the area in a climb to the north. A second witness, who was located about 0.5 miles south of the accident site, reported observing the airplane circle overhead, followed by a constant, shallow rate of descent before it impacted terrain in a slightly nose down attitude. The second witness added that, at no time during the descent, did he observe the airplane’s attitude change, and he did not observe the airplane make any type of an evasive maneuver to avoid the impact with terrain. No determination could be made concerning which pilot was manipulating the controls at the time of the accident. Autopsies and toxicological testing of both pilots revealed no evidence of impairment or incapacitation. Postaccident examination of the engine and airframe revealed no evidence of any preexisting mechanical anomalies that would have precluded normal operation. The investigation was unable to determine why the pilots failed to avert the collision with terrain.

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

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