Amateur-built BENSON KB-2 accident near Mount Holly, New Jersey, July 4, 1993
On July 4, 1993 at about 6:34 pm local time, a amateur-built BENSON KB-2 (gyroplane), registered N6606B, was destroyed in an accident near Mount Holly, New Jersey (South Jersey Regional airport). It was a personal flight under general aviation rules (Part 91). 1 person was killed. The weather was visual conditions (good weather).
The NTSB's probable cause their words, unchanged
THE PILOT'S IMPROPER USE OF THE GYROPLANE'S FLIGHT CONTROLS.
Source: NTSB aviation accident database, copy made October 5, 2026. Docket and reports at the NTSB.
What the record shows
- Date
- July 4, 1993 · about 6:34 pm local time
- Place
- Mount Holly, New Jersey · South Jersey Regional
- Type
- Accident
- Injuries
- 1 person was killed.
- Weather
- visual conditions (good weather)
- Aircraft
- Amateur-built BENSON KB-2 BENSON KB-
- Registration
- N6606B · no longer on the register
- Damage
- Destroyed
- Flight
- Personal flight · general aviation rules (Part 91)
The NTSB's narrative final · quoted from the NTSB record
PILOT WITNESSES OBSERVED THE GYROPLANE TAKE OFF, FLY A CIRCUIT AROUND THE AIRPORT, AND THEN PERFORM A LOW PASS OVER THE RUNWAY. IT WAS THEN OBSERVED TO CLIMB UP TO ABOUT 200 FT, THEN ABRUPTLY LEVEL OFF. THE ROTOR BLADE STRUCK THE RUDDER, AND THE GYROPLANE DESCENDED AND IMPACTED THE TERRAIN.
The complete narrative as the NTSB published it. The NTSB's docket holds the report as a PDF and any photographs, statements and other documents from the investigation.
The factual record from the NTSB's investigation tables, in plain English
Pilot
- Flight time: 300 hours in all
- Medical certificate: Class 3 (valid medical--w/ waivers/lim.)
- Seat: frt
The aircraft
- Last inspection: inspection type not recorded, January 2, 2000
- Seats: 1
- Landing gear: fixed
- Engine: Unknown (piston); 0 hours total
The flight
- Departed from: 7MY at 6:30 pm
- Flight plan: none
- Runway 26, 3,911 ft by 50 ft
Weather at the time
- Light: daylight
- Wind: from 360° at 10 knots
- Visibility: 7 statute miles
- Sky: scat at 10,000 ft
- Temperature: 90°F (32°C), dew point 66°F (19°C)
- Altimeter: 29.00 inHg
- Observation at 5:45 pm from TTN, 20 miles away
Injuries
| Fatal | Serious | Minor | None | |
|---|---|---|---|---|
| Crew | 1 |
Documents from the investigation the NTSB's docket: the evidence folder behind the report
The docket, the folder of records gathered during an investigation (maintenance records, photographs, witness statements, examinations), has not been read from the NTSB for this case yet; the list appears here once it has. Open the docket at the NTSB.
Everything on this page comes from the NTSB's public records. The narrative, probable cause and findings are the NTSB's own words; the coded tables behind the report are written out in plain English, with pilots' ages, home towns and medical details left out. The documents and photographs are the NTSB's docket, shown as the NTSB released them. This site's own text never names anyone involved. A preliminary report can change; the final report usually follows one to two years later, and the page is refreshed when it does.