Grumman G-164B accident near Marysville, California, April 18, 1987
On April 18, 1987 at about 9:00 pm local time, a Grumman G-164B, registered N8412K, was substantially damaged in an accident near Marysville, California (Woodland Coop airport). It was an aerial application (crop spraying) 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).
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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 18, 1987 · about 9:00 pm local time
- Place
- Marysville, California · Woodland Coop · map
- Type
- Accident
- Injuries
- No one was hurt; 1 person was on board or involved.
- Weather
- visual conditions (good weather)
- Aircraft
- Grumman G-164B · all G-164Bs on the register
- Registration
- N8412K · registry record · serial 690B
- Damage
- Substantial damage
- Flight
- Aerial application (crop spraying) flight · agricultural flying rules (Part 137)
The NTSB's narrative final · quoted from the NTSB record
AT THE END OF AN AERIAL APPLICATION FLT, THE PLT WAS AWARE OF A CROSS WIND FROM THE RIGHT. THE PLT TOUCHED THE ACFT DOWN ON THE RIGHT MAIN LANDING GEAR AND HELD THAT ATTITUDE FOR APRX 300 FT DOWN THE RWY. WHEN THE LEFT MAIN GEAR CONTACTED THE RWY IT FOLDED BACK AND SEPARATED FROM THE FUSELAGE. THE ACFT SKIDDED TO THE LEFT SIDE OF THE RWY, HIT A DIRT BANK AND NOSED DOWN. THE ACCIDENT WAS REPORTED AFTER THE ACFT HAD BEEN MOVED BY MAINTENANCE PERSONNEL. IN THE PROCESS EVIDENCE WAS DESTROYED TO DETERMINE IF A BOLT FOUND BY THE ACFT, IDENTIFIED AS A GEAR BOLT, WHICH WAS THE SAME SIZE AND TYPE AS THAT USED TO FASTEN THE LANDING GEAR ROOT TO THE LANDING GEAR BOX HAD FALLEN FROM THE ACFT. THE BOLT FOUND WAS A MS-20009-140.
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: 9,750 hours in all; 9,000 in this make and model; 20 in the last 90 days; 20 in the last 30 days; 9,500 as pilot in command
- Medical certificate: Class 2 (valid medical--w/ waivers/lim.)
- Seat: ctr
The aircraft
- Airframe total time: 2,893 hours
- Last inspection: annual inspection, November 3, 1986; 185 hours since
- Maximum gross weight: 4,500 lb
- Seats: 1
- Landing gear: fixed
- Engine: P&W R-1340-AN-1 (piston); 0 hours total
The flight
- Flight plan: none
- Runway 0, 1,500 ft by 35 ft
Weather at the time
- Light: daylight
- Wind: from 270° at 10 knots, gusting 12
- Visibility: 50 statute miles
- Sky: clear
- Temperature: 81°F (27°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 N8412K 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 LAX87DVG03.