Perry Park Airport
Aircraft Accident/Incident Report

Larkspur, Colorado 80118
Monday, February 26, 2001 11:44 MST

NTSB Narrative Summary Released at Completion of Accident

Shortly after departure, the flight instructor and his student became cold. The heater control was not in the usual position on the instrument panel (both pilots were accustomed to flying later model Cessna 172s). The student located a "white knob" but could not read the nomenclature plate. Believing it was the heater control, he pulled the knob. Approximately 1.5 hours later, the engine lost power. The instructor assumed control of the airplane and turned towards a private airstrip about 2 miles away. He instructed the student to make emergency radio calls and try restarting the engine. Strong headwinds prevented the airplane from gliding to the runway. The airplane stalled and impacted terrain. The airplane had been aloft for 1.7 hours when the engine lost power. Postaccident inspection disclosed the student had inadvertently pulled the fuel strainer control knob instead of the cabin heat control knob. There were no fuel stains on the bottom of the airplane. The fuel strainer control is spring-loaded to the CLOSED position. Examination disclosed the spring was missing. According to the Cessna 172F SERVICING INTERVALS CHECK LIST, the fuel strainer should be disassembled and cleaned every 100 hours. The last 100 hour inspection performed on N8389U was on December 14, 2000, 85.67 hours before the accident.

NTSB Probable Cause Narrative

the flight instructor inadvertently stalling the airplane during a forced landing. Contributing factors were fuel exhaustion due to inadvertent opening of the fuel drain, lack of familiarity with the airplane, inadequate supervision of the flight, and the missing strainer spring.

Event Information

Type of Event Accident
Event Date 2/26/2001
Event Day of the Week Monday
Time of Event 1144
Event Time Zone Mountain Standard Time
Event City Larkspur
Event State COLORADO
Event Country --
Zipcode of the event site 80118
Event Date Year 2001
Event Date Month 2
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude --
Event Location Longitude --
Event Location Airport Perry Park
Event Location Nearest Airport ID CO93
Indicates whether the acc/inc occurred off or on an airport Off Airport/Airstrip
Distance from airport in statute miles 0.25
Degrees magnetic from airport 340
Airport Elevation 6700
Weather Briefing Completeness Not pertinent
Investigator's weather source Weather Observation Facility
Time of the weather observation 1153 Mountain Standard Time
Direction of event from weather observation facility (degrees) 180
Weather Observation Facility ID APA
Elevation of weather observation facility 5883
Distance of event from weather observation facility (units?) 24
Time Zone of the weather observation MST
Lighting Conditions Day
Lowest Ceiling Height 22000
Lowest Non-Ceiling Height 15000
Sky/Lowest/Cloud Conditions Scattered
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) 6
Dew Point at event time (in degress fahrenheit) -7
Wind Direction (degrees magnetic) 120
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 13
Wind Velocity Indicator --
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 30.12
Density Altitude (feet) 5950
Intensity of Precipitation --
METAR weather report --
Event Highest Injury None
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
Injury Total Fatal --
Injury Total Minor --
Injury Total None 2
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 10230
NTSB Notification Source FAA Comm Ctr
NTSB Notification Date Feb 26 2001 12:00AM
NTSB Notification Time 1151
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Jul 30 2001 11:11AM
User who most recently changed record MONR
Basic weather conditions Visual Meteorological Cond
FAA District Office Denver, Colorado

Aircraft Involved

Aircraft #1

Aircraft Registration Number N8389U
NTSB Number DEN01LA055
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed VFR
Flight plan Was Activated? Yes
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name Cessna
Aircraft Model 172F
Aircraft Series Identifier --
Aircraft Serial Number 17252289
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 100 Hour
Date of Last Inspection Dec 14 2000 12:00AM
Airframe hours since last inspection 89
Airframe Hours 5191
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name Flatirons Aviation Corp.
Aircraft Owner Street Address 3300 Airport Rd., Box L
Aircraft Owner City Boulder
Aircraft Owner State CO
Aircraft Owner Country USA
Aircraft Owner Zipcode 80301
Operator is an individual? No
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 YFAA
Owner has at least one certificate --
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) Instructional
Second Pilot on Board Yes
Departure Point Same as Event No
Departure Airport Code COS
Departure City Colo. Springs
Departure State CO
Departure Country USA
Departure Time 1120
Departure Time Zone MST
Destination Same as Local Flt --
Destination Airport Code 1V5
Destination City Boulder
Destination State CO
Destination Country USA
Specific Phase of Flight Landing
Report sent to ICAO? No
Evacuation occurred --
Date of most recent change to record Jun 4 2001 2:45PM
User who most recently changed record MCBM
Since inspection or accident Time of Accident
Event Location Runway Number and Location 16
Runway Length 5700
Runway Width 75
Sight Seeing flight No
Air Medical Flight No
Medical Flight --