Peachtree City Airport
Aircraft Accident/Incident Report

Peachtree City, Georgia 30269
Wednesday, January 1, 2003 16:55 EST

NTSB Narrative Summary Released at Completion of Accident

The flight departed with full fuel tanks from the Waycross-Ware County Airport, en route to the Peachtree City Airport. About 1 hour into the flight the pilot noticed a slight rpm drop, he applied throttle to compensate for the rpm decrease. The pilot started the pre-descent procedures; he turned the auxiliary fuel pump on, applied carburetor heat, then reduced power, at this time the engine quit completely. The pilot repositioned the fuel selector, switched the auxiliary fuel pump off and on, turned carburetor heat on and off, all actions were unsuccessful in restoring engine power. The pilot established best glide airspeed, lowered full flaps, and while descending, the airplane contacted a raised sewer access. The airplane then impacted the ground and came to rest inverted. A witness reported observing black smoke trailing the airplane and heard the engine running rough. Examination of the airplane following recovery by an FAA inspector revealed the fuel tank vent lines were clear of obstructions. There was fuel found in the left wing and the right fuel tank was leaking fuel, the fuel boost pump operated electrically post accident. Fuel samples from the right wing and gascolator showed no fuel contamination. All spark plugs and inside ends of both exhaust pipes were found sooted. The carburetor heat system which consists of a 5 inches long by 2 inches in diameter pipe secured to the exhaust crossover pipe, a "Carb Heat Connector" which is secured to the filtered air box forward of the air filter, and a scat hose that connects the two. Additionally, a control in the cockpit activates an alternate air door located on the filtered air box forward of the carb heat muff inlet The carburetor heat was able to function post accident and the engine was run to idle power setting; damage precluded operation at a higher rpm setting. Bench testing of the carburetor by the manufacturer with FAA oversight revealed the carburetor was not within service limits, at comparable to idle power settings the fuel flow in terms of pounds-per-hour (pph) was 0.6 pph below service limits. At the remaining four test points the fuel flow in pph was greater than the established rich limits. At the last test point which equated to full throttle, the fuel flow was 18.5 pph above the established rich service limit. The pilot reported verbally that approximately 50 flight hours earlier, when he was taxiing to takeoff, the engine quit just like it did during the accident flight. The carburetor and engine driven fuel pump were replaced. The engine quit again in a similar fashion, and the auxiliary fuel pump and all fuel lines were replaced. Additionally, the fuel selector valve was disassembled and rebuilt. The overhauled carburetor had been operated 54.5 hours since installation at the time of the accident. The temperature and dew point at Peachtree city, two hours past the time of the accident, indicates serious carburetor icing at any power setting. Flight testing of a RV6A airplane equipped with the same carburetor heat system, same model engine, and same model carburetor as the accident airplane but with a temperature probe revealed that with the engine operating at 75 percent power and carburetor heat applied, the temperature rise was 1/2 degree Fahrenheit above the temperature with carburetor heat off. According to the general manager of Van's Aircraft, they offer 2 different types of carburetor heat systems, and they have not done any heat rise testing on any of the various carburetor heat systems that can be installed on RV type airplanes. With respect to carburetor heat muffs, a section of the builders manual states that each builder is responsible for evaluating his/her own installation based on the liklihood of carburetor ice in his/her intended operating environment.

NTSB Probable Cause Narrative

The failure of the pilot to activate carburetor heat control during cruise flight after experiencing a loss of engine rpm, inadequate carburetor heat system by the builder, and the unsuitable terrain encountered by the pilot-in-command during the forced landing following the total loss of engine power. A factor in the accident was the weather conditions ( temperature and dew point) which were susceptible to carburetor icing during cruise flight and descent.

Event Information

Type of Event Accident
Event Date 1/1/2003
Event Day of the Week Wednesday
Time of Event 1655
Event Time Zone Eastern Standard Time
Event City Peachtree City
Event State GEORGIA
Event Country --
Zipcode of the event site 30269
Event Date Year 2003
Event Date Month 1
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 332104N
Event Location Longitude 0843350W
Event Location Airport Peachtree City Airport
Event Location Nearest Airport ID KFFC
Indicates whether the acc/inc occurred off or on an airport Off Airport/Airstrip
Distance from airport in statute miles 0.13
Degrees magnetic from airport --
Airport Elevation 808
Weather Briefing Completeness Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 1653 Eastern Standard Time
Direction of event from weather observation facility (degrees) --
Weather Observation Facility ID KFFC
Elevation of weather observation facility 808
Distance of event from weather observation facility (units?) --
Time Zone of the weather observation EST
Lighting Conditions Dusk
Lowest Ceiling Height 2300
Lowest Non-Ceiling Height --
Sky/Lowest/Cloud Conditions --
Sky Condition for Lowest Ceiling Overcast
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) 10
Air Temperature at event time (in degrees celsius) 11
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) 5
Wind Velocity Indicator --
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 29.82
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) 15732
NTSB Notification Source FAA FSDO
NTSB Notification Date Jan 2 2003 12:00AM
NTSB Notification Time 1024
Fiche Number and/or location -used to find docket information DMS
Date of most recent change to record Jun 30 2004 12:15PM
User who most recently changed record NTSB\MONR
Basic weather conditions Visual Meteorological Cond
FAA District Office College Park, Georgia

Aircraft Involved

Aircraft #1

Aircraft Registration Number N559LJ
NTSB Number MIA03LA035
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 Lonnie Johnson
Aircraft Model RV6A
Aircraft Series Identifier --
Aircraft Serial Number 25559
Certified Max Gross Weight 1650
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 2
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Conditional
Date of Last Inspection Feb 25 2002 12:00AM
Airframe hours since last inspection 206.3
Airframe Hours 298.2
ELT Installed Yes
ELT Activated Yes
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name Frank S. Eldridge, Jr.
Aircraft Owner Street Address 801 Garrison Circle
Aircraft Owner City Waycross
Aircraft Owner State GA
Aircraft Owner Country USA
Aircraft Owner Zipcode 31503
Operator is an individual? Yes
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 KAYS
Departure City Waycross
Departure State GA
Departure Country USA
Departure Time 1540
Departure Time Zone EST
Destination Same as Local Flt crash at destination city
Destination Airport Code KFFC
Destination City --
Destination State GA
Destination Country USA
Specific Phase of Flight Approach
Report sent to ICAO? No
Evacuation occurred Yes
Date of most recent change to record May 17 2004 11:48AM
User who most recently changed record KENJ
Since inspection or accident Time of Accident
Event Location Runway Number and Location --
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --