Kolb Company TWIN STAR accident near Carlisle, Pennsylvania, December 26, 1990
On December 26, 1990 at about 7:43 pm local time, a Kolb Company TWIN STAR, an amateur-built aircraft,, registered UNREG, was substantially damaged in an accident near Carlisle, Pennsylvania. 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 FAILURE TO MAINTAIN ADEQUATE ALTITUDE ABOVE THE GROUND.
Source: NTSB aviation accident database, copy made October 5, 2026. Docket and reports at the NTSB.
What the record shows
- Date
- December 26, 1990 · about 7:43 pm local time
- Place
- Carlisle, Pennsylvania · map
- Type
- Accident
- Injuries
- 1 person was killed.
- Weather
- visual conditions (good weather)
- Aircraft
- Kolb Company TWIN STAR, amateur-built
- Registration
- UNREG · no longer on the register
- Damage
- Substantial damage
- Flight
- Personal flight · general aviation rules (Part 91)
The NTSB's narrative final · quoted from the NTSB record
A WITNESS OBSERVED THE AIRPLANE FLYING WITH RIGHT WING CLOSE TO THE GROUND. THE RIGHT WING CONTACTED THE GROUND AND THE AIRPLANE FLIPPED OVER.
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
- Medical certificate: Unknown
- Seat: frt
The aircraft
- Last inspection: inspection type not recorded
- Seats: 2
- Landing gear: fixed
- Engine: Rotax BH-3561801 (piston); 0 hours total
- Not recorded
The flight
- Flight plan: none
- Runway 0
Weather at the time
- Light: daylight
- Visibility: 15 statute miles
- Sky: scat
- Temperature: 0°F (-18°C), dew point 0°F (-18°C)
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.
Other NTSB records under UNREG the same tail number, which may have belonged to a different aircraft at the time
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.