No fatalities

23 Dec 2010: PIPER PA-18-150 — MARK A. KEECH — Clear, AK

Clear, AK, United States

On 23 Dec 2010, a PIPER PA-18-150 operated by MARK A. KEECH was involved in an aviation accident near Clear, AK. No fatalities were reported. Investigators recorded the probable cause as: The pilot's inadequate preflight inspection, which resulted in a loss of engine power due to water/ice in the fuel system. This summary draws on records from NTSB; 12 related events involving the same aircraft type or operator are linked below.

SourcesNTSBPrimary reportUpdated 1778583330Data APIEditorial standards

A private pilot reported that during cruise flight the engine lost all power, leading to a forced landing in snow-covered terrain where the left wing struck a tree. Postaccident inspection revealed ice crystals in the fuel gascolator filter.

Accident Summary

A private pilot experienced a total loss of engine power while flying in level cruise. The pilot reported selecting a snow and tree-covered area as a forced landing site after unsuccessful attempts to restart the engine. During the landing, the airplane's left wing collided with a tree, resulting in substantial damage to the fuselage, empennage, and left wing.

Environmental Conditions

The pilot noted that the outside air temperature at the time of the accident was minus 22 degrees Fahrenheit.

Postaccident Findings

In a written report to the NTSB, the pilot stated that a postaccident inspection revealed the engine fuel gascolator filter had been blocked by ice crystals. The pilot indicated there were no preaccident mechanical problems with the airplane.

Pilot Remarks

The pilot commented that the accident might have been prevented by removing the gascolator during preflight to check for ice crystals, or by preheating the engine and draining water from the gascolator.

Contributing factors

Inadequate inspectionPilotFluid condition