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Aviation Accident

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NTSB Identification: WPR15LA087
14 CFR Part 91: General Aviation
Accident occurred Tuesday, January 20, 2015 in Helena, MT
Probable Cause Approval Date: 03/23/2017
Aircraft: PIPER PA 28-140, registration: N4666R
Injuries: 1 Minor, 1 Uninjured.

NTSB investigators may not have traveled in support of this investigation and used data provided by various sources to prepare this aircraft accident report.

The private pilot reported that a preflight inspection and engine run-up revealed no anomalies; however, during the initial climb after takeoff, the engine was not developing full power. The pilot initiated a shallow left turn back to the runway, but the airplane was not able to maintain altitude or airspeed and subsequently impacted a house. 
A postaccident examination of the airframe and engine did not reveal any mechanical anomalies that would have precluded normal operation, and the reason for the loss of engine power could not be determined.


The National Transportation Safety Board determines the probable cause(s) of this accident as follows:
  • Loss of engine power after takeoff for reasons that could not be determined because postaccident examination did not reveal any evidence of an anomaly that would have precluded normal operation.