Aircraft Accident/Incident Report

Willacooche, Georgia 31650
Thursday, September 8, 1994 10:15 EDT

NTSB Narrative Summary Released at Completion of Accident

WHILE IN CRUISE FLIGHT, THE ENGINE OIL PRESSURE DECREASED AND THE OIL TEMPERATURE INCREASED. THE ENGINE LOST POWER RAPIDLY, AND QUIT. A FORCED LANDING WAS MADE TO A FOUR LANE HIGHWAY. THE PILOT SAID HE MANEUVERED THE AIRPLANE TO AVOID A COLLISION WITH ELECTRICAL POWER LINES AND VEHICLES. THE LANDING GEAR WAS NOT EXTENDED TO AVOID CATCHING ON POWER LINES. AFTER TOUCHDOWN ON THE HIGHWAY, A VEHICLE BACKED INTO THE ROAD AND WAS STRUCK BY THE RIGHT WING TIP. POST ACCIDENT EXAMINATION OF THE ENGINE REVEALED THAT THE NUMBER 2 PISTON EXHIBITED SIGNS OF PRE-IGNITION /DETONATION, I.E. A HOLE WAS BURNED IN THE PISTON. TESTING OF THE ENGINE FUEL SYSTEM DEMONSTRATED THAT IT WAS CAPABLE OF PROVIDING REQUIRED FUEL TO THE ENGINE. THE PILOT REPORTED THAT THE AIRPLANE WAS FULL OF 100LL FUEL WHEN THE FLIGHT DEPARTED. EXCESSIVE FUEL LEANING, DURING IMPROPER USAGE OF THE MIXTURE CONTROL, WILL RESULT IN ENGINE DETONATION.

NTSB Probable Cause Narrative

THE PILOT'S EXCESSIVE FUEL LEANING DURING IMPROPER USE OF THE MIXTURE CONTROL, WHICH RESULTED IN PRE-IGNITION/DETONATION AND A TOTAL LOSS OF ENGINE POWER. FACTORS WERE THE ELECTRICAL WIRES AND VEHICLES.

Event Information

Type of Event Accident
Event Date 9/8/1994
Event Day of the Week Thursday
Time of Event 1015
Event Time Zone Eastern Daylight Time
Event City WILLACOOCHE
Event State GEORGIA
Event Country --
Zipcode of the event site 31650
Event Date Year 1994
Event Date Month 9
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
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 Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 951 Eastern Daylight Time
Direction of event from weather observation facility (degrees) 70
Weather Observation Facility ID AMG
Elevation of weather observation facility 200
Distance of event from weather observation facility (units?) 35
Time Zone of the weather observation EDT
Lighting Conditions Day
Lowest Ceiling Height 12000
Lowest Non-Ceiling Height 5000
Sky/Lowest/Cloud Conditions Scattered
Sky Condition for Lowest Ceiling Broken
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 7
Air Temperature at event time (in degrees celsius) 24
Dew Point at event time (in degress fahrenheit) 23
Wind Direction (degrees magnetic) 90
Variable Wind Indicator Unknown
Wind Speed (knots) 6
Wind Velocity Indicator Unknown
Wind Gust Indicator Not Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 30
Density Altitude (feet) 495
Intensity of Precipitation Unknown
METAR weather report --
Event Highest Injury None
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal --
Injury Total Minor --
Injury Total None 2
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 1681
NTSB Notification Source --
NTSB Notification Date Sep 8 1994 12:00AM
NTSB Notification Time 1130
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Dec 6 2000 12:12PM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N761GQ
NTSB Number ATL94LA169
Missing Aircraft Indicator N
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 CESSNA
Aircraft Model T210M
Aircraft Series Identifier T210M
Aircraft Serial Number 21062249
Certified Max Gross Weight 3800
Aircraft Category Airplane
Aircraft Registration Class U.S. Registered/U.S. Soil
Aircraft is a homebuilt? No
Flight Crew Seats --
Cabin Crew Seats --
Passenger Seats --
Total number of seats on the aircraft 6
Number of Engines 1
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Oct 31 1993 12:00AM
Airframe hours since last inspection 92
Airframe Hours --
ELT Installed Yes
ELT Activated Yes
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name JLS INVESTMENT CORP
Aircraft Owner Street Address P.O. BOX 30884
Aircraft Owner City SEA ISLAND
Aircraft Owner State GA
Aircraft Owner Country
Aircraft Owner Zipcode 30864
Operator is an individual? --
Operator Name SIMMS, JOHN L.
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address P.O. BOX 864
Operator City SEA ISLAND
Operator State GA
Operator Country
Operator Zip code 31561
Operator Code
Owner has at least one certificate None
Other Operator of large aircraft? No
Certified for Part 133 or 137 Operation Unknown
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) Business
Second Pilot on Board No
Departure Point Same as Event No
Departure Airport Code SSI
Departure City BRUNSWICK
Departure State GA
Departure Country
Departure Time 930
Departure Time Zone EDT
Destination Same as Local Flt --
Destination Airport Code TMA
Destination City TIFTON
Destination State GA
Destination Country
Specific Phase of Flight Cruise
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 2 2001 10:34AM
User who most recently changed record dbo
Since inspection or accident --
Event Location Runway Number and Location 0
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --