Aircraft Accident/Incident Report

Apple Valley, California 92307
Saturday, January 4, 2003 8:00 PST

NTSB Narrative Summary Released at Completion of Accident

The amateur built experimental airplane experienced a loss of engine power during cruise flight and collided with a berm during a forced landing. About 10 minutes after departure, with the airplane cruising about 1,000 feet above ground level (agl), the engine started running roughly. The engine rpm began to drop and the propeller eventually came to a stop. The pilot opted to land next to the highway in open desert. During the landing roll out the nose wheel impacted a berm and the airplane nosed over, coming to rest inverted. While examining the engine after the accident occurred, the pilot found that the number 1 and 3 cylinders showed evidence of detonation. He noted that the pistons were swollen, which he thought was a result of excessive heat from the detonation.

NTSB Probable Cause Narrative

the detonation of the number 1 and 3 cylinders and the subsequent over temperature of those cylinders and their corresponding pistons.

Event Information

Type of Event Accident
Event Date 1/4/2003
Event Day of the Week Saturday
Time of Event 800
Event Time Zone Pacific Standard Time
Event City Apple Valley
Event State CALIFORNIA
Event Country --
Zipcode of the event site 92307
Event Date Year 2003
Event Date Month 1
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 343445N
Event Location Longitude 1171110W
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 Not pertinent
Investigator's weather source Weather Observation Facility
Time of the weather observation 753 Pacific Standard Time
Direction of event from weather observation facility (degrees) 315
Weather Observation Facility ID PMD
Elevation of weather observation facility 2559
Distance of event from weather observation facility (units?) 55
Time Zone of the weather observation PST
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) 4
Dew Point at event time (in degress fahrenheit) -1
Wind Direction (degrees magnetic) --
Variable Wind Indicator --
Wind Speed (knots) --
Wind Velocity Indicator Calm
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 30.26
Density Altitude (feet) 1542
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 --
Injury Total None --
Injury Total Serious 1
Injury Total All 1
Investigating Agency NTSB
NTSB Docket Number (internal use) 16902
NTSB Notification Source FAA
NTSB Notification Date Jan 4 2003 12:00AM
NTSB Notification Time 910
Fiche Number and/or location -used to find docket information DMS
Date of most recent change to record Dec 28 2004 12:45PM
User who most recently changed record NTSB\JOHB
Basic weather conditions Visual Meteorological Cond
FAA District Office WP-RAL-FSDO

Aircraft Involved

Aircraft #1

Aircraft Registration Number N7053U
NTSB Number LAX03LA059
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? No
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name Farmer R B
Aircraft Model DA5-A
Aircraft Series Identifier --
Aircraft Serial Number 115
Certified Max Gross Weight 925
Aircraft Category Airplane
Aircraft Registration Class U.S. Registered/U.S. Soil
Aircraft is a homebuilt? Yes
Flight Crew Seats --
Cabin Crew Seats --
Passenger Seats --
Total number of seats on the aircraft 1
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Jul 1 2002 12:00AM
Airframe hours since last inspection 22
Airframe Hours 454
ELT Installed Yes
ELT Activated Yes
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name Raymond C. Dedrick
Aircraft Owner Street Address --
Aircraft Owner City Apple Valley
Aircraft Owner State CA
Aircraft Owner Country USA
Aircraft Owner Zipcode 92307
Operator is an individual? No
Operator Name --
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address --
Operator City --
Operator State --
Operator Country --
Operator Zip code --
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 APV
Departure City Apple Valley
Departure State CA
Departure Country USA
Departure Time 745
Departure Time Zone PST
Destination Same as Local Flt --
Destination Airport Code L22
Destination City Yucca Valley
Destination State CA
Destination Country USA
Specific Phase of Flight Cruise - normal
Report sent to ICAO? No
Evacuation occurred No
Date of most recent change to record Nov 5 2004 6:02PM
User who most recently changed record COOS
Since inspection or accident Last Inspection
Event Location Runway Number and Location NA
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --