Pilot Debrief

Douglas A. Pohl Lancair IV-P near Hollywood, FL — 2008-07-07

Final reportMIA08LA134
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Date
2008-07-07
Location
Hollywood, FL, USA
Airport
HWO
Aircraft
Douglas A. Pohl Lancair IV-P
Registration
N488SD
Category
Airplane
Highest injury
Fatal
Fatalities
1
Phase of flight
Initial climb

Probable cause

A loss of engine power for undetermined reasons. Contributing to the accident was the pilot's failure to maintain aircraft control which resulted in an aerodynamic stall.

Contributing factors

Contributing to the accident was the pilot's failure to maintain aircraft control which resulted in an aerodynamic stall.

NTSB narrative

Witnesses observed the experimental amateur-built airplane rotate about 2,100 feet (ft) down the 3,255-foot-long runway. When the airplane reached an altitude of 150 ft, at the departure end of the runway, there was an interruption of engine power. The airplane was observed to make a left turn and the bank angle increased. The airplane stalled when it reached about 80 degrees of bank, as it was going through a north heading. The airplane went straight down and impacted the ground nose first in a left spiral. A fire soon ensued, which consumed sections of the airplane. Examination of the wreckage did not disclose any evidence of a preimpact failure or malfunction with the airplane’s flight controls that would have prevented normal operation. Examination of the engine did not provide any evidence for the loss of power. Federal Aviation Administration Advisory Circular 61-67C, makes reference to stalls. It states, when the airplane’s load factor increase (i.e., by putting the airplane in a steep turn or spiral) the loads are greater than in normal cruise flight. In a constant rate turn, increased load factors will cause an airplane's stall speed to increase as the angle of bank increases. Excessively steep banks should be avoided because the airplane will stall at a much higher speed.

Analysis

Primary failure mode
Engine power loss
First missed decision gate
Pilot could have aborted takeoff after initial power loss at 150 ft agl.

NTSB coding

Evidence available

  • Photos
  • 18 docket documents
View NTSB final reportView NTSB docket

Docket documents18

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