Brantly-Hynes B2B accident near Greencastle, Indiana, May 1, 1993
On May 1, 1993 at about 7:57 pm local time, a Brantly-Hynes B2B (helicopter), registered N2257U, was substantially damaged in an accident near Greencastle, Indiana. It was a personal flight under general aviation rules (Part 91). No one was hurt; 2 people were on board or involved. The weather was visual conditions (good weather).
The NTSB's probable cause their words, unchanged
CONTAMINATION OF THE FUEL SYSTEM BY PARTICULATE MATTER OF AN UNKNOWN ORIGIN.
Source: NTSB aviation accident database, copy made October 5, 2026. Docket and reports at the NTSB.
What the record shows
- Date
- May 1, 1993 · about 7:57 pm local time
- Place
- Greencastle, Indiana · map
- Type
- Accident
- Injuries
- No one was hurt; 2 people were on board or involved.
- Weather
- visual conditions (good weather)
- Aircraft
- Brantly-Hynes B2B
- Registration
- N2257U · registry record · serial 418
- Damage
- Substantial damage
- Flight
- Personal flight · general aviation rules (Part 91)
The NTSB's narrative final · quoted from the NTSB record
THE PILOT REPORTED THAT THE ENGINE MISSED SEVERAL TIMES & THEN QUIT COMPLETELY. HE MADE AN AUTOROTATION TO A FIELD; THE HELICOPTER LANDED HARD & ROLLED OVER. INSPECTION DISCLOSED EXTENSIVE CONTAMINATION OF THE FUEL SYSTEM WITH SAND-LIKE PARTICULATE MATTER. ONCE THE SYSTEM WAS CLEANED, THE ENGINE STARTED AND RAN NORMALLY. THE SOURCE OF THE PARTICULATE MATTER WAS NOT DETERMINED.
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
- Certificate: private
- Ratings: rotorcraft: helicopter
- Flight time: 730 hours in all; 20 in this make and model; 12 in the last 90 days; 6 in the last 30 days
- Medical certificate: Class 3 (valid medical--w/ waivers/lim.)
- Seat: rgt
The aircraft
- Airframe total time: 718 hours
- Last inspection: annual inspection, December 2, 1992; 15 hours since
- Maximum gross weight: 1,700 lb
- Seats: 2
- Landing gear: fixed
- Engine: Lycoming VIO-360 (piston); 0 hours total
The flight
- Flight plan: none
- Runway 0
Weather at the time
- Light: daylight
- Wind: from 210° at 10 knots, gusting 12
- Visibility: 3 statute miles
- Sky: scat at 8,000 ft
- Temperature: 64°F (18°C), dew point 0°F (-18°C)
Injuries
| Fatal | Serious | Minor | None | |
|---|---|---|---|---|
| Crew | 1 | |||
| Passengers | 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.