Hammonton Airport
Aircraft Accident/Incident Report

Hammonton, New Jersey 08037
Saturday, August 20, 2011 13:15 EDT

NTSB Narrative Summary Released at Completion of Accident

The Lancair pilot told a witness that he was going to fly the high-performance airplane to a nearby airport to visit a friend. The pilot was aware that the nearby airport had occasional aerobatic activity near the runway, within an "aerobatic box." The box was active on the day of the accident, with a Notice to Airmen issued for aerobatic activity at 3,500 feet and below. The airplane approached the airport about 3,500 feet; however, the exact altitude could not be determined due to the fidelity of the radar/encoder data. As the airplane approached the airport at a high airspeed, likely about 190 knots, it collided with an aerobatic airplane that had just completed a hammerhead stall and was observed in a dive. The pilot's airplane cut through the aerobatic airplane's fuselage just aft of the cockpit, top to bottom, and lost about 4 feet of its left wing. The pilot's airplane then crashed into nearby woods, and the pilot of the aerobatic airplane parachuted into the same woods. The aerobatic pilot and an observer stated that clearing turns were conducted prior to the aerobatic maneuver. However, the sun’s position and the airspeed of the oncoming airplane would have made it highly unlikely that the aerobatic pilot would have seen it. It is unknown what the inbound pilot's intentions were at the time of the accident. A relative of the inbound pilot, another pilot who had flown with him often, surmised that the pilot's approach to the airport at such a high altitude may have been an exploratory overflight, which is supported by the airplane's high airspeed at the time. Radar indicated that the pilot's airplane did not perform any standoff maneuvering prior to approaching the airport, and other pilots in the air at the time heard no advisory radio transmissions from him. During flight in visual meteorological conditions, the tenets of "see and avoid" apply. With the inbound pilot's knowledge of potential aerobatic activity at the airport, it is not known why he did not use advocated collision avoidance strategies.

NTSB Probable Cause Narrative

The Lancair pilot's failure to see and avoid the aerobatic airplane. Contributing to the accident was the Lancair pilot's inadequate use of collision avoidance strategies while inbound to an area of known potential aerobatic activity.

Event Information

Type of Event Accident
Event Date 8/20/2011
Event Day of the Week Saturday
Time of Event 1315
Event Time Zone Eastern Daylight Time
Event City Hammonton
Event State NEW JERSEY
Event Country --
Zipcode of the event site 08037
Event Date Year 2011
Event Date Month 8
MidAir Collision Indicator Yes
On Ground Collision occurred ? No
Event Location Latitude 393933N
Event Location Longitude 0744508W
Event Location Airport Hammonton
Event Location Nearest Airport ID N81
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 65
Weather Briefing Completeness --
Investigator's weather source Weather Observation Facility
Time of the weather observation 1254 Eastern Daylight Time
Direction of event from weather observation facility (degrees) 120
Weather Observation Facility ID ACY
Elevation of weather observation facility 75
Distance of event from weather observation facility (units?) 14
Time Zone of the weather observation EDT
Lighting Conditions Day
Lowest Ceiling Height --
Lowest Non-Ceiling Height 8500
Sky/Lowest/Cloud Conditions Few
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) 10
Air Temperature at event time (in degrees celsius) 28
Dew Point at event time (in degress fahrenheit) 18
Wind Direction (degrees magnetic) 150
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 9
Wind Velocity Indicator --
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 29.99
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report --
Event Highest Injury Fatal
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
Injury Total Fatal 1
Injury Total Minor --
Injury Total None --
Injury Total Serious 1
Injury Total All 2
Investigating Agency NTSB
NTSB Docket Number (internal use) 30553
NTSB Notification Source FAA Eastern ROC
NTSB Notification Date --
NTSB Notification Time --
Fiche Number and/or location -used to find docket information --
Date of most recent change to record Oct 3 2012 2:55PM
User who most recently changed record kenj
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft #2

Aircraft Registration Number N71DM N521BC
NTSB Number ERA11FA468A ERA11FA468B
Missing Aircraft Indicator -- --
Federal Aviation Reg. Part Part 91: General Aviation Part 91: General Aviation
Type of Flight Plan filed None None
Flight plan Was Activated? No No
Damage Substantial Substantial
Aircraft Fire None None
Aircraft Explosion None None
Aircraft Manufacturer's Full Name MITCHELL DAVID N YAKOVLEV
Aircraft Model LANCAIR IV P YAK-55M
Aircraft Series Identifier -- --
Aircraft Serial Number LIV 387 961007
Certified Max Gross Weight 3550 2800
Aircraft Category Airplane Airplane
Aircraft Registration Class -- --
Aircraft is a homebuilt? Yes No
Flight Crew Seats 1 1
Cabin Crew Seats -- --
Passenger Seats 3 --
Total number of seats on the aircraft 4 1
Number of Engines 1 1
Fixed gear or retractable gear Retractable Retractable
Aircraft, Type of Last Inspection Conditional Annual
Date of Last Inspection Oct 13 2010 12:00AM Mar 10 2011 12:00AM
Airframe hours since last inspection -- --
Airframe Hours 441 430
ELT Installed Yes Yes
ELT Activated Unknown No
ELT Aided Location of Event Site No No
ELT Type Unknown Unknown
Aircraft Owner Name MITCHELL DAVID N BARSUKOV KIRILL
Aircraft Owner Street Address -- 61 GRAND ST #2N
Aircraft Owner City VOORHEES JERSEY CITY
Aircraft Owner State NJ NJ
Aircraft Owner Country USA USA
Aircraft Owner Zipcode 08043-1130 07302
Operator is an individual? Yes No
Operator Name MITCHELL DAVID N BARSUKOV KIRILL
Operator Same as Owner? Yes Yes
Operator Is Doing Business As -- --
Operator Address Same as Owner? Yes Yes
Operator Street Address -- --
Operator City VOORHEES JERSEY CITY
Operator State NJ NJ
Operator Country USA USA
Operator Zip code 08043-1130 07302-4600
Operator Code -- --
Owner has at least one certificate None None
Other Operator of large aircraft? No 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) Personal Personal
Second Pilot on Board No No
Departure Point Same as Event No Yes
Departure Airport Code VAY N81
Departure City Mount Holly Hammonton
Departure State NJ NJ
Departure Country USA USA
Departure Time -- 1215
Departure Time Zone -- EDT
Destination Same as Local Flt crash at destination city dest & departure same, accident can occur anywhere
Destination Airport Code N81 N81
Destination City Hammonton Hammonton
Destination State NJ NJ
Destination Country USA USA
Specific Phase of Flight -- --
Report sent to ICAO? -- --
Evacuation occurred -- --
Date of most recent change to record Oct 3 2012 2:55PM Oct 3 2012 2:55PM
User who most recently changed record kenj kenj
Since inspection or accident Last Inspection Time of Accident
Event Location Runway Number and Location 21 21
Runway Length 3601 3601
Runway Width 75 75
Sight Seeing flight No No
Air Medical Flight No No
Medical Flight -- --