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Accidents · NTSB SEA08LA098 · Final report

Amateur-built RV6 accident near Aurora, Oregon, March 27, 2008

On March 27, 2008 at about 7:30 pm local time, a amateur-built RV6, registered N65MK, was substantially damaged in an accident during enroute (climb to cruise) near Aurora, Oregon. It was a flight test 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 propeller malfunction for undetermined reasons.

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

What the record shows

Date
March 27, 2008 · about 7:30 pm local time
Place
Aurora, Oregon · map
Type
Accident
Injuries
No one was hurt; 2 people were on board or involved.
Weather
visual conditions (good weather)
Aircraft
Amateur-built RV6
Registration
N65MK · no longer on the register · serial 25253
Damage
Substantial damage
Flight
Flight test · general aviation rules (Part 91)

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

The pilot departed on a test flight for a propeller installation. The pilot said that during the flight, a malfunction occurred and "the propeller was free-wheeling." The pilot force-landed the airplane in soft, muddy terrain and the airplane sustained substantial damage. The pilot did not provide any information regarding the circumstances of the propeller failure following the accident and the reason for the malfunction 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

  1. Powerplant sys/comp malf/fail during enroute (climb to cruise) defining event
  2. Collision with terrain or object (not controlled flight into terrain) during landing (landing roll)

The NTSB's findings

  • cause Not determined › Not determined › (general) › (general) › Unknown/Not determined
  • Environmental issues › Physical environment › Terrain › Wet/muddy › Not specified

Pilot

  • Certificate: commercial pilot
  • Ratings: single-engine land; instrument: airplane
  • Flight time: 3,000 hours in all
  • Medical certificate: Class 3 (with waivers/limitations)
  • Injury: no injuries

The aircraft

  • Maximum gross weight: 1,700 lb
  • Seats: 2
  • Landing gear: fixed
  • Engine: Textron Lycoming O-320 (piston); 0 hours total

The flight

  • Departed from: UAO Aurora OR at 7:20 pm
  • Flight plan: none

Weather at the time

  • Light: daylight
  • Wind: from 190° at 10 knots, gusting 16
  • Visibility: 10 statute miles
  • Sky: broken clouds at 2,700 ft
  • Temperature: 45°F (7°C), dew point 34°F (1°C)
  • Altimeter: 30.38 inHg
  • Observation at 8:29 pm from UAO, 1 miles away

Injuries

FatalSeriousMinorNone
Flight crew1
Passengers1

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.