Grumman G164-A accident near Echo, Oregon, April 23, 1986
On April 23, 1986 at about 11:59 pm local time, a Grumman G164-A, registered N25SK, was substantially damaged in an accident near Echo, Oregon. It was a positioning 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).
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 4, 2026. Docket and reports at the NTSB.
What the record shows
- Date
- April 23, 1986 · about 11:59 pm local time
- Place
- Echo, Oregon · map
- Type
- Accident
- Injuries
- No one was hurt; 1 person was on board or involved.
- Weather
- visual conditions (good weather)
- Aircraft
- Grumman G164-A · all G164-As on the register
- Registration
- N25SK · registry record · serial 1335
- Damage
- Substantial damage
- Flight
- Positioning flight · general aviation rules (Part 91)
The NTSB's narrative final · quoted from the NTSB record
A LOSS OF POWER OCCURRED SHORTLY AFTER TAKEOFF ON A DOWNWIND DEPARTURE. A FORCED LANDING WAS ACCOMPLISHED ONTO A WHEAT FIELD DOWNHILL. THE AIRCRAFT NOSED OVER DURING THE LANDING ROLL. POST ACCIDENT INSPECTION OF THE AIRCRAFT DISCLOSED FUEL CONTAMINATION.
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: multi-engine land; single-engine land; instrument: airplane
- Flight time: 14,000 hours in all; 1,800 in this make and model; 230 in the last 90 days
- Medical certificate: Class 2 (valid medical--no waivers/lim.)
- Seat: ctr
The aircraft
- Last inspection: inspection type not recorded
- Maximum gross weight: 3,750 lb
- Seats: 1
- Landing gear: fixed
- Engine: P&W R-985-AN1 (piston); 0 hours total
The flight
- Departed from: S57 Echo OR at 11:59 pm
- Flight plan: none
- Runway 0
Weather at the time
- Light: daylight
- Wind: from 220° at 3 knots
- Visibility: 50 statute miles
- Sky: clear
- Temperature: 50°F (10°C), dew point 0°F (-18°C)
Injuries
| Fatal | Serious | Minor | None | |
|---|---|---|---|---|
| Crew | 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.
Other NTSB records under N25SK the same tail number, which may have belonged to a different aircraft at the time
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 documents and photographs are the NTSB's docket, the folder of records gathered during the investigation, shown as the NTSB released them (the NTSB redacts some personal details first) and listed under the NTSB's own titles. This site's own text 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 SEA86LA109.