The U.S. aircraft register, updated daily
Accidents · NTSB SEA86LA156 · Preliminary: the investigation is not finished

Cessna 188 accident near Durkee, Oregon, June 28, 1986

On June 28, 1986 at about 2:45 pm local time, a Cessna 188, registered N4835Q, was substantially damaged in an accident near Durkee, Oregon. It was a positioning flight under agricultural flying rules (Part 137). No one was hurt; 1 person was on board or involved. The weather was visual conditions (good weather).

The NTSB's probable cause their words, unchanged

The NTSB has not yet published a probable cause for this accident. Investigations usually take one to two years; this page updates when the final report is released.

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

What the record shows

Date
June 28, 1986 · about 2:45 pm local time
Place
Durkee, Oregon · map
Type
Accident
Injuries
No one was hurt; 1 person was on board or involved.
Weather
visual conditions (good weather)
Aircraft
Cessna 188 · all 188s on the register
Registration
N4835Q · no longer on the register · serial 5277
Damage
Substantial damage
Flight
Positioning flight · agricultural flying rules (Part 137)

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

WHILE CROSSING A MOUNTAIN RIDGE AT LOW ALTITUDE, THE AIRCRAFT ENCOUNTERED DOWNDRAFTS. THE PILOT WAS FORCED TO LAND AS HE WAS UNABLE TO ARREST THE DESCENT RATE. THE LANDING WAS ACCOMPLISHED ONTO VERY ROUGH TERRAIN.

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: commercial pilot
  • Ratings: single-engine land
  • Flight time: 2,420 hours in all; 1,200 in this make and model; 200 in the last 90 days; 2,355 as pilot in command
  • Medical certificate: Class 2 (valid medical--no waivers/lim.)
  • Seat: ctr

The aircraft

  • Airframe total time: 3,600 hours
  • Last inspection: annual inspection, February 1, 1986
  • Maximum gross weight: 4,000 lb
  • Seats: 1
  • Landing gear: fixed
  • Engine: Continental IO-520-D (piston); 0 hours total
  • Operator: Richard Griffitts, INC

The flight

  • Departed from: Durkee OR at 1:30 pm
  • Destination: Rye Valley OR
  • Flight plan: none
  • Runway 0

Weather at the time

  • Light: daylight
  • Wind: from 250° at 6 knots, gusting 10
  • Visibility: 25 statute miles
  • Sky: clear
  • Temperature: 61°F (16°C), dew point 0°F (-18°C)

Injuries

FatalSeriousMinorNone
Crew1

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.