Amateur-built RV-6 accident near Caldwell, Idaho, August 1, 2009
On August 1, 2009 at about 7:50 pm local time, a amateur-built RV-6, registered N69KG, was destroyed in an accident during approach (VFR pattern downwind) near Caldwell, Idaho (Caldwell Industrial 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 failure to maintain adequate airspeed that led to a stall/spin while maneuvering in the traffic pattern.
Source: NTSB aviation accident database, copy made October 5, 2026. Docket and reports at the NTSB.
What the record shows
- Date
- August 1, 2009 · about 7:50 pm local time
- Place
- Caldwell, Idaho · Caldwell Industrial Airport · map
- Type
- Accident
- Injuries
- 1 person was killed.
- Weather
- visual conditions (good weather)
- Aircraft
- Amateur-built RV-6
- Registration
- N69KG · registry record · serial 23069
- Damage
- Destroyed
- Flight
- Personal flight · general aviation rules (Part 91)
The NTSB's narrative final · quoted from the NTSB record
According to a family member of the pilot, the airplane had sat on the airport's ramp for about a year without having been flown. About a week before the accident, the pilot flew the airplane once around the traffic pattern. On the day of the accident, the pilot had removed and sandblasted the spark plugs, checked the cylinders for compression, and removed and cleaned the air filter; the filter was reported to have had "some goop" on it. A witness reported observing the airplane take off, and, as it went by him at 100 to 200 feet above ground level, he heard a "popping noise." He subsequently observed the airplane make a quick left turn to a left downwind leg, and as the airplane continued on the downwind he observed the nose increase in pitch, but it was not climbing. As the airplane came abeam the numbers, it made a steep left turn, followed by the nose dropping before it dove into the ground and erupted in flames. The airplane was consumed by a post impact fire. A post accident examination of the engine revealed no anomalies with the cylinders and valve train. All spark plugs were found to have excessive gaps, and all but one failed a bench check when exposed to pressure greater than 80 psi. A post accident examination of the airframe revealed no anomalies. No aircraft or engine logbooks were located during the investigation.
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 (partial) during initial climb
- Loss of control in flight during approach (VFR pattern downwind)
- Aerodynamic stall/spin during approach (VFR pattern downwind) defining event
- Collision with terrain or object (not controlled flight into terrain) during uncontrolled descent
The NTSB's findings
- cause Aircraft › Aircraft oper/perf/capability › Performance/control parameters › (general) › Not attained/maintained
- cause Personnel issues › Task performance › Use of equip/info › Aircraft control › Pilot
- cause Aircraft › Aircraft oper/perf/capability › Performance/control parameters › Airspeed › Not attained/maintained
Pilot
- Certificate: private
- Ratings: single-engine land
- Flight time: 302 hours in all
- Medical certificate: Class 3 (without waivers/limitations)
- Seat: left
- Injury: fatal
The aircraft
- Last inspection: inspection type not recorded
- Maximum gross weight: 1,650 lb
- Seats: 2
- Landing gear: fixed
- Engine: Lycoming O-320 (piston); 0 hours total
- Fire on the ground
The flight
- Departed from: EUL Caldwell ID at 7:50 pm
- Destination: EUL Caldwell ID
- Flight plan: not recorded
- Runway 12, 5,500 ft by 100 ft
Weather at the time
- Light: daylight
- Wind: from 190° at 3 knots
- Visibility: 5 statute miles
- Sky: clear
- Temperature: 91°F (33°C), dew point 48°F (9°C)
- Altimeter: 30.04 inHg
- Observation at 7:35 pm from EUL, 1 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.
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.