Fort Collins Downtown Airport
Aircraft Accident/Incident Report

Fort Collins, Colorado 80525
Friday, July 25, 1997 9:45 MDT

NTSB Narrative Summary Released at Completion of Accident

During initial climb following takeoff on a cross-country flight, the aircraft failed to attain a sustained climb and impacted in a field approximately 2 miles from the departure end of the runway. Weather conditions at the time were temperature 92 degrees F, wind calm, and the airport elevation was 4,699 feet msl. The aircraft had been modified by STC to a tailwheel configuration. The Owner's Manual in the aircraft was for the wrong year and model. The aircraft was 32 pounds over maximum gross weight. The pilot was using 10 degrees flaps for takeoff. There are no performance charts for the use of flaps for takeoff and in the narrative portion of the Owner's Manual. The manual recommends that flaps not be used for takeoff from high altitude airports on hot days. In addition, the aircraft was out of annual, the pilot had a forged medical certificate, some work on the aircraft had been performed by the pilot and signed off and he did not possess a mechanic license, and the signatures on the spark plugs revealed the aircraft engine was not leaned for optimum performance.

NTSB Probable Cause Narrative

Inadequate preflight planning by loading the aircraft over the maximum certificated gross weight, failure to follow procedures and directives by using flaps for takeoff and failing to properly lean the engine for optimum power, and stalling the aircraft. Factors were: Poor judgement by the pilot in operating the aircraft without a current annual inspection, for forging his medical certificate, and failing to obtain and use the proper Owner's Manual for the aircraft. Also, factors were insufficient requirements for the Owner's Manual by the FAA and inadequate aircraft manual information by the manufacturer.

Event Information

Type of Event Accident
Event Date 7/25/1997
Event Day of the Week Friday
Time of Event 945
Event Time Zone Mountain Daylight Time
Event City FORT COLLINS
Event State COLORADO
Event Country --
Zipcode of the event site 80525
Event Date Year 1997
Event Date Month 7
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport FORT COLLINS DOWNTOWN
Event Location Nearest Airport ID 3V5
Indicates whether the acc/inc occurred off or on an airport Off Airport/Airstrip
Distance from airport in statute miles 2
Degrees magnetic from airport 290
Airport Elevation 4935
Weather Briefing Completeness Unknown
Investigator's weather source Witness
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) 10
Air Temperature at event time (in degrees celsius) 33
Dew Point at event time (in degress fahrenheit) --
Wind Direction (degrees magnetic) 290
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) 30
Density Altitude (feet) 8300
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) 1331
NTSB Notification Source --
NTSB Notification Date Jul 25 1997 12:00AM
NTSB Notification Time 1000
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Dec 8 2000 12:24PM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N4228U
NTSB Number FTW97FA280
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 150D
Aircraft Series Identifier 150D
Aircraft Serial Number 15060228
Certified Max Gross Weight 1600
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 2
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Jun 1 1996 12:00AM
Airframe hours since last inspection 8
Airframe Hours 3156
ELT Installed Yes
ELT Activated Yes
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name JEFFERY L. KOSTER
Aircraft Owner Street Address 2224 HIAWATHA CT.
Aircraft Owner City FORT COLLINS
Aircraft Owner State CO
Aircraft Owner Country
Aircraft Owner Zipcode 80525
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 No
Departure Point Same as Event Yes
Departure Airport Code 3V5
Departure City
Departure State
Departure Country
Departure Time 913
Departure Time Zone MDT
Destination Same as Local Flt --
Destination Airport Code D02
Destination City OSAGE
Destination State IA
Destination Country
Specific Phase of Flight Takeoff
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 29
Runway Length 4699
Runway Width 48
Sight Seeing flight No
Air Medical Flight No
Medical Flight --