Pilot Debrief

Nunley KR2 near Baker, FL — 2017-06-30

Final reportERA17LA220
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Date
2017-06-30
Location
Baker, FL, USA
Airport
18FD
Aircraft
Nunley KR2
Registration
N269HJ
Category
Airplane
Highest injury
Serious
Fatalities
0
Phase of flight
Takeoff roll

Probable cause

A partial loss of engine power for reasons that could not be determined because postaccident examination of the engine revealed no evidence of any preaccident mechanical malfunctions or failures that would have precluded normal operation.

NTSB narrative

The commercial pilot was preparing to fly the experimental amateur-built airplane on a local, Phase 1 test flight. The pilot reported that ground operations were normal, including the engine run-up. Shortly after takeoff, about halfway down the runway, the engine sputtered, hesitated, and then lost partial power. The pilot had passed the point at which he could land the airplane straight ahead on the runway, so he looked for a place to conduct a forced landing. During the forced landing, he turned the airplane to avoid nearby houses and then steepened the turn due to wind that was pushing the airplane left. The airplane subsequently collided with the ground and fragmented into multiple sections. The pilot did not recall the impact sequence due to injuries he sustained during the accident. The fragmentation of the airframe was consistent with an in-flight loss of airplane control before ground impact. Examination of the engine, including a full disassembly, did not reveal evidence of any preaccident mechanical malfunctions or failures that would have precluded normal operation. The reason for the partial loss of engine power could not be determined.

Analysis

Primary failure mode
Engine power loss
First missed decision gate
Pilot could have aborted takeoff after engine sputtered.

NTSB coding

Evidence available

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

Docket documents6

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