Harford County Airport
Aircraft Accident/Incident Report

Churchville, Maryland 21028
Sunday, July 16, 2000 16:30 EDT

NTSB Narrative Summary Released at Completion of Accident

After a normal takeoff and lift-off, the pilot noticed the engine tachometer indicated 2,900 rpm, instead of the normal 3,450 rpm. Additionally, the corner of the airplane's canopy became dislodged. The pilot was unable to secure the canopy, and felt he would have 'no problem making a gentle left turn to land on a parallel runway;' however, during the turn, about 50 feet above the ground, he became 'distracted and stalled' the airplane about 300 feet short of the runway. The airplane was equipped with a 4-cycle Kohler, model CH25S lawn mower engine. A hole was found in the right cylinder rocker box cover, and 'some debris and filings' were observed on the right cylinder exhaust valve.

NTSB Probable Cause Narrative

The pilot's failure to maintain airspeed which resulted in an inadvertent stall. Factors in this accident were an open canopy and a decrease in engine power.

Event Information

Type of Event Accident
Event Date 7/16/2000
Event Day of the Week Sunday
Time of Event 1630
Event Time Zone Eastern Daylight Time
Event City CHURCHVILLE
Event State MARYLAND
Event Country --
Zipcode of the event site 21028
Event Date Year 2000
Event Date Month 7
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude --
Event Location Longitude --
Event Location Airport HARFORD COUNTY
Event Location Nearest Airport ID 0W3
Indicates whether the acc/inc occurred off or on an airport Off Airport/Airstrip
Distance from airport in statute miles --
Degrees magnetic from airport --
Airport Elevation 409
Weather Briefing Completeness Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 1645 Eastern Daylight Time
Direction of event from weather observation facility (degrees) 215
Weather Observation Facility ID MTN
Elevation of weather observation facility 22
Distance of event from weather observation facility (units?) 20
Time Zone of the weather observation EDT
Lighting Conditions Day
Lowest Ceiling Height 15000
Lowest Non-Ceiling Height 3000
Sky/Lowest/Cloud Conditions Scattered
Sky Condition for Lowest Ceiling Broken
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 7
Air Temperature at event time (in degrees celsius) 23
Dew Point at event time (in degress fahrenheit) 18
Wind Direction (degrees magnetic) 130
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) 29
Density Altitude (feet) --
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) 420
NTSB Notification Source FAA - Eastern Region Comm Cent
NTSB Notification Date Jul 17 2000 12:00AM
NTSB Notification Time 800
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Mar 4 2001 7:09AM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N4425W
NTSB Number NYC00LA198
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 Warrington
Aircraft Model SURREL GUPPY
Aircraft Series Identifier SURREL GUP
Aircraft Serial Number 53
Certified Max Gross Weight 600
Aircraft Category Airplane
Aircraft Registration Class U.S. Registered/U.S. Soil
Aircraft is a homebuilt? Yes
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 Unknown
Date of Last Inspection --
Airframe hours since last inspection --
Airframe Hours 12
ELT Installed No
ELT Activated Unknown
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name JOHN A. WARRINGTON
Aircraft Owner Street Address
Aircraft Owner City ELKTON
Aircraft Owner State MD
Aircraft Owner Country
Aircraft Owner Zipcode 21921
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 0W3
Departure City
Departure State
Departure Country
Departure Time 1630
Departure Time Zone EDT
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 Mar 4 2001 7:09AM
User who most recently changed record dbo
Since inspection or accident --
Event Location Runway Number and Location 1
Runway Length 1600
Runway Width 85
Sight Seeing flight No
Air Medical Flight No
Medical Flight --