Amateur-built DH82A accident near Mascoutah, Illinois, October 22, 1989
On October 22, 1989 at about 8:53 pm local time, a amateur-built DH82A, registered N100MH, was substantially damaged in an accident near Mascoutah, Illinois. 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
AN UNDETERMINED POWERPLANT PROBLEM, WHICH RESULTED IN A SEVERE VIBRATION. THE SOFT/UNEVEN TERRAIN WAS CONSIDERED TO BE A CONTRIBUTING FACTOR.
Source: NTSB aviation accident database, copy made October 5, 2026. Docket and reports at the NTSB.
What the record shows
- Date
- October 22, 1989 · about 8:53 pm local time
- Place
- Mascoutah, Illinois
- Type
- Accident
- Injuries
- No one was hurt; 2 people were on board or involved.
- Weather
- visual conditions (good weather)
- Aircraft
- Amateur-built DH82A
- Registration
- N100MH · registry record · serial A17-122
- Damage
- Substantial damage
- Flight
- Personal flight · general aviation rules (Part 91)
The factual record from the NTSB's investigation tables, in plain English
Pilot
- Certificate: airline transport pilot
- Ratings: multi-engine land; single-engine land; instructor: airplane single-engine; instructor: instrument airplane; instrument: airplane; rotorcraft: glider
- Flight time: 24,000 hours in all; 40 in this make and model; 10 in the last 90 days; 6 in the last 30 days; 20,000 as pilot in command; 5,000 on instruments
- Medical certificate: Class 2 (valid medical--w/ waivers/lim.)
- Seat: rear
The aircraft
- Last inspection: annual inspection, July 18, 1989; 15 hours since
- Maximum gross weight: 1,825 lb
- Seats: 2
- Landing gear: fixed
- Engine: Rolls-Royce GIPSY MAJOR (piston); 0 hours total
The flight
- Departed from: MO49 Washington MO at 7:50 pm
- Destination: CULL Carmi IL
- Flight plan: none
- Runway 0
Weather at the time
- Light: daylight
- Wind: from 150° at 10 knots
- Visibility: 7 statute miles
- Sky: broken clouds at 25,000 ft; scat at 15,000 ft
- Temperature: 70°F (21°C), dew point 54°F (12°C)
- Altimeter: 30.00 inHg
- Observation at 8:55 pm from BLV, 4 miles away
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.