Mertens Airport
Aircraft Accident/Incident Report

Sterling, Colorado 80751
Saturday, April 23, 1994 10:15 MDT

NTSB Narrative Summary Released at Completion of Accident

THE NEWLY-HIRED PILOT WAS MAKING HIS THIRD FLIGHT IN AIRPLANE MAKE AND MODEL, AND HIS SECOND COMPANY WATER SPRAYING PRACTICE FLIGHT. ACCORDING TO THE CHIEF PILOT, AS THE AIRPLANE MADE THE APPROACH, THE ENGINE 'SOUNDED ROUGH, LIKE IT WAS RUNNING OUT OF GAS.' OTHER WITNESSES SAID THE ENGINE WAS NOT RUNNING. THE AIRPLANE PULLED UP, BANKED RIGHT, ROLLED INVERTED, AND DESCENDED INTO THE GROUND. THE FAA INSPECTOR WHO EXAMINED THE WRECKAGE SAID HE FOUND LESS THAN 1 GALLON OF FUEL IN THE RIGHT TANK AND THE LEFT TANK WAS EMPTY. THE RIGHT TANK HELD 25 GALLONS USEABLE FUEL AND THE LEFT TANK HELD 40 GALLONS. THE AIRPLANE TOOK OFF AT 0815. THE OPERATOR HEARD THE PILOT REPORT SWITCHING TANKS AT 0930. THE ACCIDENT OCCURRED AT 1015. THE FUEL SELECTOR VALVE WAS POSITIONED ON THE RIGHT TANK. THE OPERATOR SAID THE ENGINE CONSUMED BETWEEN 21 AND 26 GALLONS PER HOUR, DEPENDING ON POWER SETTING.

NTSB Probable Cause Narrative

AN INADVERTENT STALL. FACTORS WERE FUEL EXHAUSTION AND THE PILOT'S FAILUE TO REFUEL THE AIRPLANE.

Event Information

Type of Event Accident
Event Date 4/23/1994
Event Day of the Week Saturday
Time of Event 1015
Event Time Zone Mountain Daylight Time
Event City STERLING
Event State COLORADO
Event Country --
Zipcode of the event site 80751
Event Date Year 1994
Event Date Month 4
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport MERTENS
Event Location Nearest Airport ID 3C02
Indicates whether the acc/inc occurred off or on an airport On Airport
Distance from airport in statute miles --
Degrees magnetic from airport --
Airport Elevation 4192
Weather Briefing Completeness Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 1050 Mountain Daylight Time
Direction of event from weather observation facility (degrees) 160
Weather Observation Facility ID AKO
Elevation of weather observation facility 4714
Distance of event from weather observation facility (units?) 27
Time Zone of the weather observation MDT
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) 15
Air Temperature at event time (in degrees celsius) 20
Dew Point at event time (in degress fahrenheit) 8
Wind Direction (degrees magnetic) 280
Variable Wind Indicator Unknown
Wind Speed (knots) 13
Wind Velocity Indicator Unknown
Wind Gust Indicator Not Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 29
Density Altitude (feet) 6464
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 1
Injury Total All 1
Investigating Agency NTSB
NTSB Docket Number (internal use) 146
NTSB Notification Source --
NTSB Notification Date Apr 23 1994 12:00AM
NTSB Notification Time 1015
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Dec 6 2000 11:01AM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N1295W
NTSB Number FTW94LA134
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? --
Damage Destroyed
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name WEATHERLY
Aircraft Model 201C
Aircraft Series Identifier 201C
Aircraft Serial Number 1003
Certified Max Gross Weight 3500
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 1
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Dec 2 1993 12:00AM
Airframe hours since last inspection 33
Airframe Hours 3086
ELT Installed No
ELT Activated Unknown
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name BENSON AVIATION, INC.
Aircraft Owner Street Address R 3, BOX 535, 12502 ROAD 27
Aircraft Owner City STERLING
Aircraft Owner State CO
Aircraft Owner Country
Aircraft Owner Zipcode 80751
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 NLPG
Owner has at least one certificate Yes - certificate holder
Other Operator of large aircraft? No
Certified for Part 133 or 137 Operation Agriculture
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) Instructional
Second Pilot on Board No
Departure Point Same as Event Yes
Departure Airport Code
Departure City
Departure State
Departure Country
Departure Time 815
Departure Time Zone MDT
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code
Destination City
Destination State
Destination Country
Specific Phase of Flight Maneuvering
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 --