Flight Design GMBH CTSW accident near Okeechobee, Florida, August 21, 2009
On August 21, 2009 at about 2:25 pm local time, a Flight Design GMBH CTSW, registered N535CT, was substantially damaged in an accident during enroute (climb to cruise) near Okeechobee, Florida. It was a personal flight under general aviation rules (Part 91). 1 person had minor injuries. The weather was visual conditions (good weather).
The NTSB's probable cause their words, unchanged
A total loss of engine power during initial climb for undetermined reasons.
Source: NTSB aviation accident database, copy made October 5, 2026. Docket and reports at the NTSB.
What the record shows
- Date
- August 21, 2009 · about 2:25 pm local time
- Place
- Okeechobee, Florida · map
- Type
- Accident
- Injuries
- 1 person had minor injuries.
- Weather
- visual conditions (good weather)
- Aircraft
- Flight Design GMBH CTSW · all CTSWs on the register
- Registration
- N535CT · no longer on the register · serial 07-05-01
- Damage
- Substantial damage
- Flight
- Personal flight · general aviation rules (Part 91)
The NTSB's narrative final · quoted from the NTSB record
The pilot stated that he was on climbout at less than 1,250 feet mean sea level, at full power, when he heard a grinding noise followed by a total loss of engine power. He made a forced landing straight ahead to a pasture. The airplane touched down in soft, sandy soil, bounced and touched down again. The main landing gear sank in the sand, the airplane nosed over inverted, and the vertical fin received structural damage. Examination of the airframe and flight control assembly revealed no anomalies. The airplane was recovered to a repair facility for further examination and an engine run. About 10 gallons of fuel was removed from the fuel tanks. The oil filter and fuel gascolator were removed and no contamination was present. A replacement oil filter and the gascolator were reinstalled on the engine. The engine assembly was secured in a modified stand for an engine run. The engine was started, and ran at idle power before being advanced to 2,500 rpm. The power was increased to 4,000 rpm and no anomalies were noted. The engine power was reduced to idle power, and the engine was shut down. The reason for the reported loss of engine power 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
What happened, in order
- Loss of engine power (total) during enroute (climb to cruise) defining event
- Off-field or emergency landing during emergency descent
- Nose over/nose down during landing (landing roll)
The NTSB's findings
- cause Not determined › Not determined › (general) › (general) › Unknown/Not determined
- Environmental issues › Physical environment › Terrain › (general) › Contributed to outcome
Pilot
- Certificate: commercial pilot
- Ratings: multi-engine land; single-engine land; instrument: airplane
- Flight time: 6,215 hours in all; 235 in this make and model; 13 in the last 90 days; 4 in the last 30 days; 6,000 as pilot in command
- Last flight review: May 5, 2008
- Medical certificate: Class 3 (with waivers/limitations)
- Seat: left
- Injury: minor injuries
The aircraft
- Airframe total time: 235 hours
- Last inspection: annual inspection, March 10, 2009; 32 hours since
- Maximum gross weight: 1,320 lb
- Seats: 2
- Landing gear: fixed
- Engine: Rotax 912ULS (piston); 0 hours total
The flight
- Departed from: OBE Okeechobee FL at 2:20 pm
- Destination: FPR Fort Pierce FL
- Flight plan: none
Weather at the time
- Light: daylight
- Wind: from 210° at 5 knots
- Visibility: 10 statute miles
- Sky: clear
- Temperature: 84°F (29°C), dew point 75°F (24°C)
- Altimeter: 29.97 inHg
- Observation at 2:28 pm from OBE, 3 miles away
Injuries
| Fatal | Serious | Minor | None | |
|---|---|---|---|---|
| Flight 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 N535CT 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.