Low-Altitude Maneuvering · NTSB ANC08LA122

PIPER PA-18 — Talkeetna, AK

1 fatal High-time pilotLow altitude
DateSeptember 11, 2008
LocationTalkeetna, AK
AircraftPIPER PA-18
Purpose of flightOther Work Use
ConditionsDay · Visual Meteorological Cond
Phase / occurrenceManeuvering-low-alt flying Loss of control in flight
Pilot age48
Pilot total time2,000 hrs · Experienced
Time in typeUnknown
Fatalities1, 1 serious

Probable cause

The pilot's failure to maintain sufficient airspeed to preclude a stall while maneuvering at a low altitude, resulting in an uncontrolled descent and collision with terrain.

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 commercial pilot was on a Title 14, CFR Part 91, local area passenger flight in conjunction with his hunting/guiding business. The flight was to include landing at remote off airport sites. According to the surviving passenger, he and the pilot headed for a remote area to look for caribou. He said they were circling to the left looking for a likely camp site. He said the turn became tighter, and the angle of bank became steeper. The passenger said the angle of bank suddenly became very steep, and he heard the pilot say something like "Oh No!" over the intercom. He said he looked forward, and saw the ground through the front windscreen. The passenger said the airplane's left wing struck the ground first, followed by the nose. A fire erupted, and after putting out the fire and attempting to help the pilot, the passenger said he headed toward a camp they had seen from the air to get help. According to the passenger there were no known mechanical anomalies with the airplane prior to the accident. Given the absence of any mechanical issues with the airplane, the steep bank, and sudden decrease in pitch attitude, it is likely the pilot inadvertently stalled the airplane during the turn.

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 →