Aircraft Accident/Incident Report

Avis, Pennsylvania 17721
Monday, May 26, 2003 14:50 EDT

NTSB Narrative Summary Released at Completion of Accident

The pilot reported that the airplane was in cruise flight when he reduced the throttle to idle, and began a gradual descent to an altitude of about 500 feet. At that time, the pilot advanced the throttle; however, the engine did not respond. The engine never developed more than a "fast idle" and the pilot was unable to restore engine power. The pilot located a corn field and performed an emergency landing. During the landing roll, the airplane flipped over and came to rest inverted. Examination of the airplane did not reveal any pre-impact mechanical malfunctions. A weather observation reported at an airport about 20 miles east of the accident site, included a temperature and dew point of 62 and 55 degrees F; respectively. According to an FAA carburetor icing probability chart, the weather conditions were favorable for moderate icing at cruise speed, or serious icing at glide power.

NTSB Probable Cause Narrative

A loss of engine power due to carburetor ice. A factor in this accident were weather conditions favorable to carburetor ice.

Event Information

Type of Event Accident
Event Date 5/26/2003
Event Day of the Week Monday
Time of Event 1450
Event Time Zone Eastern Daylight Time
Event City Avis
Event State PENNSYLVANIA
Event Country --
Zipcode of the event site 17721
Event Date Year 2003
Event Date Month 5
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 411105N
Event Location Longitude 0771850W
Event Location Airport --
Event Location Nearest Airport ID NONE
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 --
Weather Briefing Completeness Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 1406 Eastern Standard Time
Direction of event from weather observation facility (degrees) 80
Weather Observation Facility ID IPT
Elevation of weather observation facility 529
Distance of event from weather observation facility (units?) 20
Time Zone of the weather observation EST
Lighting Conditions Day
Lowest Ceiling Height 2400
Lowest Non-Ceiling Height 1800
Sky/Lowest/Cloud Conditions Scattered
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) 17
Dew Point at event time (in degress fahrenheit) 13
Wind Direction (degrees magnetic) 310
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 4
Wind Velocity Indicator --
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 29.93
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 1
Injury Total None --
Injury Total Serious --
Injury Total All 1
Investigating Agency NTSB
NTSB Docket Number (internal use) 14997
NTSB Notification Source FAA EROC
NTSB Notification Date May 26 2003 12:00AM
NTSB Notification Time 1730
Fiche Number and/or location -used to find docket information DMS
Date of most recent change to record Mar 2 2004 8:06AM
User who most recently changed record NTSB\MONR
Basic weather conditions Visual Meteorological Cond
FAA District Office Harrisburg

Aircraft Involved

Aircraft #1

Aircraft Registration Number N59768
NTSB Number NYC03LA115
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 Boeing Stearman
Aircraft Model D75-N1
Aircraft Series Identifier --
Aircraft Serial Number 75-3837
Certified Max Gross Weight 2950
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 May 3 2002 12:00AM
Airframe hours since last inspection 4
Airframe Hours 785
ELT Installed Yes
ELT Activated Yes
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name Carl S. Williamson
Aircraft Owner Street Address 7893 Nittany Valley Dr. Box A
Aircraft Owner City Mill Hall
Aircraft Owner State PA
Aircraft Owner Country USA
Aircraft Owner Zipcode 17751
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 --
Owner has at least one certificate None
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) Personal
Second Pilot on Board No
Departure Point Same as Event No
Departure Airport Code LHV
Departure City Lock Haven
Departure State PA
Departure Country USA
Departure Time 1430
Departure Time Zone EDT
Destination Same as Local Flt --
Destination Airport Code P96
Destination City Jersey Shore
Destination State PA
Destination Country USA
Specific Phase of Flight Cruise
Report sent to ICAO? No
Evacuation occurred Yes
Date of most recent change to record Nov 28 2003 12:38PM
User who most recently changed record PEAR
Since inspection or accident Time of Accident
Event Location Runway Number and Location --
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --