N/A Airport
Aircraft Accident/Incident Report

Brentwood, California 94513
Thursday, August 1, 2013 9:45 PDT

NTSB Narrative Summary Released at Completion of Accident

The pilot reported that he was on a short cross-country flight when he felt a slight vibration in the airplane. An instrument panel scan revealed that the engine’s cylinder head temperatures had risen above 450 degrees F. The pilot diverted toward the nearest airport, but the engine lost power before the airplane reached the airport. During the forced landing in a cornfield, both wings sustained substantial damage. A postaccident engine examination and test run revealed no evidence of any preimpact anomalies with the engine that would have prevented normal operation. The reason for the loss of engine power could not be determined.

NTSB Probable Cause Narrative

A loss of engine power 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 8/1/2013
Event Day of the Week Thursday
Time of Event 945
Event Time Zone Pacific Daylight Time
Event City Brentwood
Event State CALIFORNIA
Event Country --
Zipcode of the event site 94513
Event Date Year 2013
Event Date Month 8
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 375558N
Event Location Longitude 1213811W
Event Location Airport N/A
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 Weather Observation Facility
Time of the weather observation 855 Pacific Daylight Time
Direction of event from weather observation facility (degrees) 100
Weather Observation Facility ID SCK
Elevation of weather observation facility 24
Distance of event from weather observation facility (units?) 19
Time Zone of the weather observation PDT
Lighting Conditions Day
Lowest Ceiling Height --
Lowest Non-Ceiling Height 1500
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) 19
Dew Point at event time (in degress fahrenheit) 9
Wind Direction (degrees magnetic) 270
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 8
Wind Velocity Indicator --
Wind Gust Indicator Gusting
Wind Gust (knots) 24
Altimeter Setting at event time (in. Hg) 30.01
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report --
Event Highest Injury Minor
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 --
Injury Total All 1
Investigating Agency NTSB
NTSB Docket Number (internal use) 32713
NTSB Notification Source ROC
NTSB Notification Date --
NTSB Notification Time --
Fiche Number and/or location -used to find docket information --
Date of most recent change to record May 19 2014 4:21PM
User who most recently changed record strj
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N199BW
NTSB Number WPR13LA353
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 None
Aircraft Explosion None
Aircraft Manufacturer's Full Name WEBER
Aircraft Model GPA-2
Aircraft Series Identifier --
Aircraft Serial Number 2001
Certified Max Gross Weight 1325
Aircraft Category Airplane
Aircraft Registration Class --
Aircraft is a homebuilt? Yes
Flight Crew Seats --
Cabin Crew Seats --
Passenger Seats --
Total number of seats on the aircraft 2
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection --
Date of Last Inspection --
Airframe hours since last inspection --
Airframe Hours --
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site Unknown
ELT Type Unknown
Aircraft Owner Name EWINS JOHN H
Aircraft Owner Street Address --
Aircraft Owner City DANVILLE
Aircraft Owner State CA
Aircraft Owner Country USA
Aircraft Owner Zipcode 94526-2349
Operator is an individual? Yes
Operator Name Mark Fridell
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address --
Operator City San Ramon
Operator State CA
Operator Country USA
Operator Zip code 94582
Operator Code --
Owner has at least one certificate None
Other Operator of large aircraft? --
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) Personal
Second Pilot on Board No
Departure Point Same as Event No
Departure Airport Code LVK
Departure City Livermore
Departure State CA
Departure Country USA
Departure Time 915
Departure Time Zone PDT
Destination Same as Local Flt --
Destination Airport Code MHR
Destination City Sacramento
Destination State CA
Destination Country USA
Specific Phase of Flight --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record May 22 2014 5:35PM
User who most recently changed record coos
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 --