Cessna 182 accident near Sandy, Oregon, February 1, 1986
On February 1, 1986 at about 1:00 am local time, a Cessna 182, registered N2085R, was substantially damaged in an accident near Sandy, Oregon. It was a personal flight under general aviation rules (Part 91). 2 people had minor injuries. 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
- February 1, 1986 · about 1:00 am local time
- Place
- Sandy, Oregon · map
- Type
- Accident
- Injuries
- 2 people had minor injuries.
- Weather
- visual conditions (good weather)
- Aircraft
- Cessna 182 · all 182s on the register
- Registration
- N2085R · no longer on the register · serial 18255285
- Damage
- Substantial damage
- Flight
- Personal flight · general aviation rules (Part 91)
The NTSB's narrative final · quoted from the NTSB record
A TOTAL LOSS OF POWER OCCURRED DUE TO A COMPLETE LOSS OF OIL. DURING ENGINE TEARDOWN IT WAS FOUND THAT THE OIL FILTER ADAPTER HAD SLIPPED PAST THE THREADS IN THE OIL PUMP HOUSING. THE AIRCRAFT HAD THE OIL FILTER ADAPTER REPLACED AS WELL AS THE O RING ON 12-11-85. THE MECHANIC TOLD THE AIRCRAFT OWNER VIA A WRITTEN WORK ORDER THAT THE THREADS ON THE ADAPTER WERE WORN AND BROKEN. DUE TO UNSUITABLE LANDING AREAS AVAILABLE A NOSE OVER OCCURRED DURING LANDING ON THE GRASS FIELD.
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; instrument: airplane
- Flight time: 1,911 hours in all; 1,374 in this make and model; 45 in the last 90 days; 1,800 as pilot in command
- Medical certificate: Class 2 (valid medical--no waivers/lim.)
- Seat: left
The aircraft
- Airframe total time: 5,000 hours
- Last inspection: annual inspection, May 1, 1985
- Maximum gross weight: 3,100 lb
- Seats: 4
- Landing gear: fixed
- Engine: Continental O-470-R (piston); 0 hours total
The flight
- Departed from: YKM Yakima WA at 11:30 pm
- Destination: 77S Cresswell OR
- Flight plan: IFR
- Runway 0
Weather at the time
- Light: daylight
- Wind: from 120° at 14 knots
- Visibility: 40 statute miles
- Sky: broken clouds at 9,000 ft; not recorded
- Temperature: 48°F (9°C), dew point 0°F (-18°C)
Injuries
| Fatal | Serious | Minor | None | |
|---|---|---|---|---|
| Crew | 1 | |||
| Passengers | 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.