Pilot Debrief

GRUMMAN ACFT ENG COR-SCHWEIZER G 164A near Alfalfa, OR — 2015-02-18

Final reportWPR15LA106
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Date
2015-02-18
Location
Alfalfa, OR, USA
Airport
50OR
Aircraft
GRUMMAN ACFT ENG COR-SCHWEIZER G 164A
Registration
N4863
Category
Airplane
Highest injury
None
Fatalities
0
Phase of flight
Takeoff roll

Probable cause

A total loss of engine power after takeoff for reasons that could not be determined, because examination of the engine did not reveal any mechanical anomalies that would have precluded normal operation.

NTSB narrative

The commercial pilot/owner, an airframe and powerplant mechanic with inspection authorization privileges, performed an annual inspection on the airplane in order to return it to service after it had been in storage for about 2 years. Ground engine run-up checks revealed no discrepancies, and he decided to perform a test flight. After takeoff, the engine sputtered and lost power, and the pilot returned to the airport for a precautionary landing. The airplane overran the runway, struck a tire, and came to rest inverted. A postaccident engine run revealed no mechanical discrepancies that would have precluded normal operation. The reason for the loss of engine power was not determined.

Analysis

Primary failure mode
Engine power loss
First missed decision gate
Pilot could have delayed takeoff until engine issues were resolved.

NTSB coding

Evidence available

  • 2 docket documents
View NTSB final reportView NTSB docket

Docket documents2

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