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Accidents · NTSB SEA99LA111 · Final report

Amateur-built RV4 accident near Creswell, Oregon, July 8, 1999

On July 8, 1999 at about 11:15 pm local time, a amateur-built RV4, registered N9233A, was substantially damaged in an accident near Creswell, Oregon (Hobby Field). 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

A foreign material/substance was ingested into the carburetor which resulted in a power loss.

Source: NTSB aviation accident database, copy made October 5, 2026. Docket and reports at the NTSB.

What the record shows

Date
July 8, 1999 · about 11:15 pm local time
Place
Creswell, Oregon · Hobby Field · map
Type
Accident
Injuries
No one was hurt; 2 people were on board or involved.
Weather
visual conditions (good weather)
Aircraft
Amateur-built RV4
Registration
N9233A · no longer on the register · serial 1239A
Damage
Substantial damage
Flight
Personal flight · general aviation rules (Part 91)

The NTSB's narrative final · quoted from the NTSB record

The pilot reported that shortly after takeoff, the engine lost 80 to 90 percent power. The pilot initiated a forced landing in a hay field where, during the landing roll, the airplane was substantially damaged. During the engine inspection, a small piece of the alternator belt was found ingested into the carburetor. The pilot reported that the carburetor heat was on at the time of the power loss.

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: flight instructor, commercial pilot
  • Ratings: multi-engine land; single-engine land; instructor: airplane single-engine; instructor: instrument airplane; instrument: airplane
  • Flight time: 4,000 hours in all; 125 in this make and model; 80 in the last 90 days; 25 in the last 30 days; 3,900 as pilot in command; 1,800 on instruments
  • Medical certificate: Class 1 (valid medical--w/ waivers/lim.)
  • Seat: rear

The aircraft

  • Airframe total time: 350 hours
  • Last inspection: annual inspection, October 18, 1997; 125 hours since
  • Maximum gross weight: 1,500 lb
  • Seats: 2
  • Landing gear: fixed
  • Engine: Lycoming O-320-E2D (piston); 0 hours total

The flight

  • Departed from: 77S at 11:00 pm
  • Flight plan: none
  • Runway 33, 3,100 ft by 60 ft
  • A second pilot was aboard

Weather at the time

  • Light: daylight
  • Wind: from 340° at 15 knots, gusting 19
  • Visibility: 10 statute miles
  • Sky: clear
  • Temperature: 81°F (27°C), dew point 48°F (9°C)
  • Altimeter: 30.00 inHg
  • Observation at 6:56 pm from EUG, 17 miles away

Injuries

FatalSeriousMinorNone
Crew2

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.