Amateur-built Hatz CB-1 accident near Buffalo, Minnesota, April 15, 2007
On April 15, 2007 at about 11:40 pm local time, a amateur-built Hatz CB-1, registered N899P, was substantially damaged in an accident near Buffalo, Minnesota (Buffalo Municipal Airport). It was a personal flight under general aviation rules (Part 91). No one was hurt; 1 person was on board or involved. The weather was visual conditions (good weather).
Preview. This page is not yet listed for search engines.
The NTSB's probable cause their words, unchanged
The loss of engine power due to the carburetor fuel flow valve becoming stuck in the closed position, which resulted in fuel starvation.
Source: NTSB aviation accident database, copy made October 4, 2026. Docket and reports at the NTSB.
What the record shows
- Date
- April 15, 2007 · about 11:40 pm local time
- Place
- Buffalo, Minnesota · Buffalo Municipal Airport · map
- Type
- Accident
- Injuries
- No one was hurt; 1 person was on board or involved.
- Weather
- visual conditions (good weather)
- Aircraft
- Amateur-built Hatz CB-1
- Registration
- N899P · registry record · serial 313
- Damage
- Substantial damage
- Flight
- Personal flight · general aviation rules (Part 91)
The NTSB's narrative final · quoted from the NTSB record
The airplane impacted terrain during a forced landing following a total loss of engine power. The pilot reported that during the preflight inspection he visually inspected the fuel tank and no fuel contamination was detected from a gascolator fuel sample. The pilot performed three landings, but while on the downwind leg for the fourth landing "the engine abruptly stopped." Best glide speed was established and the airplane was maneuvered toward the runway for landing. The pilot reported that he "confirmed that carb heat was off and mixture full, rocked the wings and switched mags off and then on, in an attempt to restart the engine." The airplane "just cleared" the perimeter fence and touched down short of the runway in a ditch. The right main gear subsequently separated and the airplane rolled inverted. An on-scene inspection of the airplane indicated that there was sufficient fuel available in the fuel tank and a gascolator fuel sample was free of water and particulate contamination. Examination of the carburetor revealed that the carburetor fuel flow valve would stick in the closed position.
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: single-engine land; single-engine sea
- Flight time: 716 hours in all; 140 in this make and model; 18 in the last 90 days; 8 in the last 30 days; 660 as pilot in command; 0 on instruments
- Last flight review: February 1, 2007
- Medical certificate: Class 3 (with waivers/limitations)
- Seat: rear
- Injury: no injuries
The aircraft
- Airframe total time: 668 hours
- Last inspection: condition inspection, November 1, 2006
- Maximum gross weight: 1,500 lb
- Seats: 2
- Landing gear: fixed
- Engine: Lycoming O-235-C1 (piston); 0 hours total
The flight
- Departed from: CFE Buffalo MN at 11:30 pm
- Destination: CFE
- Flight plan: none
- Runway 35, 2,600 ft by 60 ft
Weather at the time
- Light: daylight
- Visibility: 10 statute miles
- Sky: clear
- Temperature: 61°F (16°C), dew point 41°F (5°C)
- Altimeter: 29.98 inHg
- Observation at 11:35 pm from CFE
Injuries
| Fatal | Serious | Minor | None | |
|---|---|---|---|---|
| Crew | 1 |
About this page
Everything above comes from the NTSB's public accident database: the narrative, probable cause and findings are the NTSB's own words, and the coded tables behind its report (pilot, aircraft, flight, weather, injuries, sequence of events) are written out in plain English. Pilots' ages, home towns and medical details are left out on purpose. The docket at the NTSB holds the report as a PDF and the investigation's photographs and documents. This site never names pilots, passengers or anyone else involved. A preliminary report describes what is known soon after the event and can change; the final report, with the probable cause, usually follows one to two years later and this page is refreshed when it does. Case number CHI07CA105.