Cooperstown-Westville Airport
Aircraft Accident/Incident Report

Cooperstown, New York 13326
Wednesday, April 7, 2010 16:10 EDT

NTSB Narrative Summary Released at Completion of Accident

The certified flight instructor (CFI) stated that he was demonstrating to the student a simulated loss of engine power and landing to the airport. He began by reducing power then applying carburetor heat. He maneuvered the airplane in a descending right turn and cleared the engine (verifying full engine power was available) at least one time during the descent. He approached the runway and lowered 10 degrees of flaps while on a short base leg of the traffic pattern. The approach appeared normal to slightly high, and on short final (about 100 feet above touchdown zone elevation), the flight encountered a very strong and turbulent gust that necessitated immediate full power. He applied power and the engine hesitated or stumbled. He removed carburetor heat application and pushed forward on the throttle and mixture controls. Thereafter, he pumped the throttle control in an effort to restore engine power which was unsuccessful. He maneuvered the airplane to a clear space and landed in a wooded area. Inspection of the engine by a Federal Aviation Administration (FAA) airworthiness inspector following recovery of the airplane revealed no evidence of preimpact mechanical failure or malfunction. A surface observation weather report approximately 17 minutes before the accident, indicated the temperature and dew point were 18 and 13 degrees Celsius respectively, (64 and 55 degrees Fahrenheit). According to a FAA Special Airworthiness Information Bulletin (SAIB) CE-09-35, dated June 30, 2009, the temperature and dew point were favorable for serious icing at glide power.

NTSB Probable Cause Narrative

A partial loss of engine power during a simulated engine-out demonstration due to carburetor icing.

Event Information

Type of Event Accident
Event Date 4/7/2010
Event Day of the Week Wednesday
Time of Event 1610
Event Time Zone Eastern Daylight Time
Event City Cooperstown
Event State NEW YORK
Event Country --
Zipcode of the event site 13326
Event Date Year 2010
Event Date Month 4
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 423733N
Event Location Longitude 0745326W
Event Location Airport Cooperstown-Westville Airport
Event Location Nearest Airport ID K23
Indicates whether the acc/inc occurred off or on an airport Off Airport/Airstrip
Distance from airport in statute miles 1
Degrees magnetic from airport --
Airport Elevation 1260
Weather Briefing Completeness --
Investigator's weather source Weather Observation Facility
Time of the weather observation 1553 Eastern Daylight Time
Direction of event from weather observation facility (degrees) 328
Weather Observation Facility ID RME
Elevation of weather observation facility 504
Distance of event from weather observation facility (units?) 43
Time Zone of the weather observation EDT
Lighting Conditions Day
Lowest Ceiling Height 8000
Lowest Non-Ceiling Height --
Sky/Lowest/Cloud Conditions --
Sky Condition for Lowest Ceiling Broken
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) 10
Air Temperature at event time (in degrees celsius) 18
Dew Point at event time (in degress fahrenheit) 13
Wind Direction (degrees magnetic) 290
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 11
Wind Velocity Indicator --
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 29.701
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report --
Event Highest Injury Minor
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
Injury Total Fatal --
Injury Total Minor 2
Injury Total None --
Injury Total Serious --
Injury Total All 2
Investigating Agency NTSB
NTSB Docket Number (internal use) 27600
NTSB Notification Source Albany FSDO
NTSB Notification Date --
NTSB Notification Time --
Fiche Number and/or location -used to find docket information --
Date of most recent change to record Dec 13 2010 7:41PM
User who most recently changed record kelz
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N4760X
NTSB Number ERA10CA220
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? No
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name CESSNA
Aircraft Model 150G
Aircraft Series Identifier --
Aircraft Serial Number 15064810
Certified Max Gross Weight 1600
Aircraft Category Airplane
Aircraft Registration Class --
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 Oct 20 2009 12:00AM
Airframe hours since last inspection --
Airframe Hours 6272
ELT Installed Yes
ELT Activated Yes
ELT Aided Location of Event Site Unknown
ELT Type Unknown
Aircraft Owner Name Gary Pressler
Aircraft Owner Street Address --
Aircraft Owner City Unadilla
Aircraft Owner State NY
Aircraft Owner Country USA
Aircraft Owner Zipcode 13849
Operator is an individual? No
Operator Name Gary Pressler
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address --
Operator City Unadilla
Operator State NY
Operator Country USA
Operator Zip code 13849
Operator Code --
Owner has at least one certificate None
Other Operator of large aircraft? No
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 No
Departure Point Same as Event No
Departure Airport Code N23
Departure City Sidney
Departure State NY
Departure Country USA
Departure Time 1545
Departure Time Zone EDT
Destination Same as Local Flt crash at destination city
Destination Airport Code K23
Destination City Cooperstown
Destination State NY
Destination Country USA
Specific Phase of Flight --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Feb 28 2011 2:25PM
User who most recently changed record broda
Since inspection or accident Last Inspection
Event Location Runway Number and Location 02
Runway Length 2337
Runway Width 125
Sight Seeing flight No
Air Medical Flight No
Medical Flight --