Aircraft Accident/Incident Report

Moses Lake, Washington 98837
Monday, June 27, 2011 9:30 PDT

NTSB Narrative Summary Released at Completion of Accident

The pilot and the flight instructor were in the process of starting the climb after takeoff in the airplane that the pilot had recently purchased. As they started to turn toward the practice area, the airplane’s water-cooled engine suddenly began to overheat. The pilots therefore initiated a turn back toward the airport, but the engine started losing power. Because it appeared that they would not be able to make it to the airport, the flight instructor took over and landed the airplane in a nearby soft field covered with a crop of wheat. During the landing roll, the airplane nosed over and a fire began, which eventually consumed much of the airframe structure and engine components. Although the engine cooling system was missing a mandatory cooling system vent line, the teardown examination did not reveal any evidence of overheating or component seizure in the engine’s top end. The investigation also determined that the failure of the crankshaft to rotate after the accident was due to the postaccident melting and subsequent solidification of the phenolic MAG bearing cages due to the postimpact fire. The investigation was unable to determine the reason for the loss of engine power.

NTSB Probable Cause Narrative

A loss of engine power during the initial climb for reasons that could not be determined because postaccident examination did not reveal any anomalies that would have precluded normal operation.

Event Information

Type of Event Accident
Event Date 6/27/2011
Event Day of the Week Monday
Time of Event 930
Event Time Zone Pacific Daylight Time
Event City Moses Lake
Event State WASHINGTON
Event Country --
Zipcode of the event site 98837
Event Date Year 2011
Event Date Month 6
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 470821N
Event Location Longitude 1191418W
Event Location Airport --
Event Location Nearest Airport ID --
Indicates whether the acc/inc occurred off or on an airport Off Airport/Airstrip
Distance from airport in statute miles --
Degrees magnetic from airport --
Airport Elevation --
Weather Briefing Completeness --
Investigator's weather source Pilot
Time of the weather observation
Direction of event from weather observation facility (degrees) --
Weather Observation Facility ID --
Elevation of weather observation facility --
Distance of event from weather observation facility (units?) --
Time Zone of the weather observation --
Lighting Conditions Day
Lowest Ceiling Height --
Lowest Non-Ceiling Height --
Sky/Lowest/Cloud Conditions Clear
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) 10
Air Temperature at event time (in degrees celsius) 22
Dew Point at event time (in degress fahrenheit) 7
Wind Direction (degrees magnetic) --
Variable Wind Indicator --
Wind Speed (knots) --
Wind Velocity Indicator Calm
Wind Gust Indicator --
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 29.83
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report --
Event Highest Injury Serious
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
Injury Total Fatal --
Injury Total Minor 1
Injury Total None --
Injury Total Serious 1
Injury Total All 2
Investigating Agency NTSB
NTSB Docket Number (internal use) 30840
NTSB Notification Source FAA Operations Center
NTSB Notification Date --
NTSB Notification Time --
Fiche Number and/or location -used to find docket information --
Date of most recent change to record Feb 3 2013 8:27PM
User who most recently changed record johb
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N9103L
NTSB Number WPR11LA291
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? --
Damage Substantial
Aircraft Fire Ground
Aircraft Explosion None
Aircraft Manufacturer's Full Name RICHARD
Aircraft Model CHALLENGER II
Aircraft Series Identifier --
Aircraft Serial Number CH2-0200-1955
Certified Max Gross Weight 960
Aircraft Category Airplane
Aircraft Registration Class --
Aircraft is a homebuilt? Yes
Flight Crew Seats 1
Cabin Crew Seats --
Passenger Seats 1
Total number of seats on the aircraft 2
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Conditional
Date of Last Inspection --
Airframe hours since last inspection --
Airframe Hours --
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type Unknown
Aircraft Owner Name ASHMAN STEPHEN
Aircraft Owner Street Address --
Aircraft Owner City COLBERT
Aircraft Owner State WA
Aircraft Owner Country USA
Aircraft Owner Zipcode 99005-9126
Operator is an individual? Yes
Operator Name Samuel Clark
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address --
Operator City La Center
Operator State WA
Operator Country USA
Operator Zip code 98860
Operator Code --
Owner has at least one certificate None
Other Operator of large aircraft? No
Certified for Part 133 or 137 Operation --
Operator Certificate Number --
Indicates whether an air carrier operation was scheduled or not --
Indicates Domestic or International Flight --
Operator carrying Pax/Cargo/Mail --
Type of Flying (Per_Bus / Primary) Instructional
Second Pilot on Board Yes
Departure Point Same as Event Yes
Departure Airport Code --
Departure City Moses Lake
Departure State WA
Departure Country USA
Departure Time 928
Departure Time Zone PDT
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code --
Destination City Moses Lake
Destination State WA
Destination Country USA
Specific Phase of Flight --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Dec 14 2012 11:53AM
User who most recently changed record stam
Since inspection or accident --
Event Location Runway Number and Location N/A
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --