Pilot Debrief

THOMAS STEPHEN GLASAIR SUPER II RG near Santa Ynez, CA — 2017-10-05

Final reportWPR18LA007
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Date
2017-10-05
Location
Santa Ynez, CA, USA
Airport
IZA
Aircraft
THOMAS STEPHEN GLASAIR SUPER II RG
Registration
N248ST
Category
Airplane
Highest injury
None
Fatalities
0
Phase of flight
Takeoff roll

Probable cause

A partial loss of engine power for reasons that were not determined.

NTSB narrative

The pilot reported that his intent was to practice touch-and-go takeoffs and landings. The first takeoff and landing to a full stop was normal. The pilot reported he taxied back and initiated a full throttle takeoff. He reported that after lifting off at 70 knots, the engine continued to run but was no longer producing power, and the airplane began to descend. The pilot reduced the throttle and initiated a forced landing to a grass field. The airplane traveled through the airport perimeter fence and continued to a road where it contacted a dirt berm. The foreign manufactured engine was an unusual design. Several unsuccessful attempts were made to contact and work with the manufacturer to determine the cause of the partial loss of engine power.

Analysis

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

NTSB coding

Evidence available

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

Docket documents5

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