Aircraft Accident/Incident Report

Mariposa, California 95338
Friday, June 5, 1998 14:40 PDT

NTSB Narrative Summary Released at Completion of Accident

The day before the pilot's flight he checked his airplane and determined that its right fuel tank was full of fuel, and the left tank was 'down 2 to 3 gallons.' The following morning a preflight inspection was performed, no fuel was added, and the pilot took off from Mariposa, California. After flying about 1:20 hours, the pilot landed at Bakersfield and ate lunch. Thereafter, he took off for a return flight to Mariposa. En route, the pilot cruised at 6,500 feet msl and overflew Fresno, a community with several airports. The pilot observed the airplane's fuel gauges, switched tanks, and continued heading toward Mariposa. About 35 miles past Fresno, all engine power was lost. A ground-based witness heard the pilot transmit a distress call indicating that he was out of fuel. The pilot attempted to make a forced landing on a highway, but on approach collided with trees. No evidence of any preimpact mechanical malfunction or failure was found during an examination of the airplane. Fuel system continuity was established, with no ruptures evident to any line or tank. The FAA reported that the amount of fuel observed remaining in the fuel tanks was less than 1 gallon and was in the unusable range. A few drops of fuel were observed in the gascolator. The pilot stated that the accident could have been prevented had he refueled (before departure) at Bakersfield.

NTSB Probable Cause Narrative

Fuel exhaustion due to the pilot's inadequate preflight planning, and improper in-flight decision not to make a precautionary landing for additional fuel.

Event Information

Type of Event Accident
Event Date 6/5/1998
Event Day of the Week Friday
Time of Event 1440
Event Time Zone Pacific Daylight Time
Event City MARIPOSA
Event State CALIFORNIA
Event Country --
Zipcode of the event site 95338
Event Date Year 1998
Event Date Month 6
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 Pilot
Time of the weather observation 0
Direction of event from weather observation facility (degrees) 0
Weather Observation Facility ID
Elevation of weather observation facility 0
Distance of event from weather observation facility (units?) 0
Time Zone of the weather observation
Lighting Conditions Day
Lowest Ceiling Height 0
Lowest Non-Ceiling Height 0
Sky/Lowest/Cloud Conditions Clear
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 20
Air Temperature at event time (in degrees celsius) 25
Dew Point at event time (in degress fahrenheit) --
Wind Direction (degrees magnetic) 180
Variable Wind Indicator Unknown
Wind Speed (knots) 5
Wind Velocity Indicator Unknown
Wind Gust Indicator Not Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) --
Density Altitude (feet) --
Intensity of Precipitation Unknown
METAR weather report --
Event Highest Injury Serious
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal --
Injury Total Minor --
Injury Total None --
Injury Total Serious 2
Injury Total All 2
Investigating Agency NTSB
NTSB Docket Number (internal use) 1146
NTSB Notification Source --
NTSB Notification Date Jun 5 1998 12:00AM
NTSB Notification Time 1526
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Dec 11 2000 11:32AM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N2573L
NTSB Number LAX98LA183
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 172H
Aircraft Series Identifier 172H
Aircraft Serial Number 17255773
Certified Max Gross Weight 2300
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 4
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Oct 10 1997 12:00AM
Airframe hours since last inspection --
Airframe Hours --
ELT Installed Yes
ELT Activated Yes
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name THOMAS R. WENTWORTH
Aircraft Owner Street Address 45125 BIG OAK LANE
Aircraft Owner City OAKHURST
Aircraft Owner State CA
Aircraft Owner Country
Aircraft Owner Zipcode 93644
Operator is an individual? --
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? 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) Personal
Second Pilot on Board Yes
Departure Point Same as Event No
Departure Airport Code NA
Departure City BAKERSFIELD
Departure State CA
Departure Country
Departure Time 1400
Departure Time Zone PDT
Destination Same as Local Flt crash at destination city
Destination Airport Code 068
Destination City
Destination State
Destination Country
Specific Phase of Flight Cruise
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 2 2001 10:30AM
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 --