North Buffalo Suburban Airport
Aircraft Accident/Incident Report

Lockport, New York 14094
Tuesady, March 17, 1998 13:00 EST

NTSB Narrative Summary Released at Completion of Accident

While in cruise flight, the airplane's engine experienced a decrease in RPM and began to run rough. The pilot added carburetor heat and the RPM increased. When the pilot removed the carburetor heat the engine began to run rough again, so he reapplied and maintained full carburetor heat. However, after a few moments, the engine began to run rough again. The pilot said he reached his destination airport at an altitude of about 2,500-2,600 feet and began a slow spiral to enter the traffic pattern at 1,400 feet. The engine began to run rougher while in the traffic pattern and the engine lost power during the final approach. The airplane crashed about 1/2 mile from the approach end of the runway. Examination of the wreckage did not reveal any pre-impact failures of the airframe or engine. The temperature and dewpoint reported at airports about 10 miles south, and about 45 miles east of the accident site, were 37 and 18 degrees F; and 43 and 21 degrees F, respectively . A carburetor icing probability chart was reviewed and revealed that the weather conditions were at the lower limit of the 'Icing- Glide and Cruise Power' area of the chart.

NTSB Probable Cause Narrative

The pilot's misjudgment of altitude and distance during a forced landing in the traffic pattern. A factor in the accident was the carburetor icing conditions.

Event Information

Type of Event Accident
Event Date 3/17/1998
Event Day of the Week Tuesday
Time of Event 1300
Event Time Zone Eastern Standard Time
Event City LOCKPORT
Event State NEW YORK
Event Country --
Zipcode of the event site 14094
Event Date Year 1998
Event Date Month 3
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport NORTH BUFFALO SUBURBAN
Event Location Nearest Airport ID 0G0
Indicates whether the acc/inc occurred off or on an airport Off Airport/Airstrip
Distance from airport in statute miles --
Degrees magnetic from airport 300
Airport Elevation 587
Weather Briefing Completeness Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 1254 Eastern Standard Time
Direction of event from weather observation facility (degrees) 180
Weather Observation Facility ID BUF
Elevation of weather observation facility 724
Distance of event from weather observation facility (units?) 10
Time Zone of the weather observation EST
Lighting Conditions Day
Lowest Ceiling Height 0
Lowest Non-Ceiling Height 25000
Sky/Lowest/Cloud Conditions Scattered
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) 3
Dew Point at event time (in degress fahrenheit) -8
Wind Direction (degrees magnetic) 120
Variable Wind Indicator Unknown
Wind Speed (knots) 8
Wind Velocity Indicator Unknown
Wind Gust Indicator Not Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 30
Density Altitude (feet) --
Intensity of Precipitation Unknown
METAR weather report --
Event Highest Injury None
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal --
Injury Total Minor --
Injury Total None 2
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 590
NTSB Notification Source --
NTSB Notification Date Mar 17 1998 12:00AM
NTSB Notification Time 1400
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Feb 16 2001 11:57AM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N704GP
NTSB Number NYC98LA078
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 150
Aircraft Series Identifier 150
Aircraft Serial Number 15078602
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 Dec 12 1997 12:00AM
Airframe hours since last inspection 34
Airframe Hours 7928
ELT Installed Yes
ELT Activated Yes
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name GEORGE H. STONER
Aircraft Owner Street Address 597 WILLOW STREET
Aircraft Owner City LOCKPORT
Aircraft Owner State NY
Aircraft Owner Country
Aircraft Owner Zipcode 14094
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 No
Departure Airport Code 0G0
Departure City LOCKPORT
Departure State NY
Departure Country
Departure Time 1100
Departure Time Zone EST
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 --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Feb 20 2001 6:29PM
User who most recently changed record dbo
Since inspection or accident --
Event Location Runway Number and Location 10
Runway Length 2830
Runway Width 50
Sight Seeing flight No
Air Medical Flight No
Medical Flight --