Grumman 164B accident near Hermiston, Oregon, July 19, 1989
On July 19, 1989 at about 12:15 pm local time, a Grumman 164B, registered N6632Q, was substantially damaged in an accident near Hermiston, Oregon (S & K Farm airport). 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 AIRPORT OWNERS FAILURE TO MARK A HIDDEN HAZARD.
Source: NTSB aviation accident database, copy made October 5, 2026. Docket and reports at the NTSB.
What the record shows
- Date
- July 19, 1989 · about 12:15 pm local time
- Place
- Hermiston, Oregon · S & K Farm · map
- Type
- Accident
- Injuries
- No one was hurt; 1 person was on board or involved.
- Weather
- visual conditions (good weather)
- Aircraft
- Grumman 164B
- Registration
- N6632Q · registry record · serial 1598
- Damage
- Substantial damage
- Flight
- Positioning flight · general aviation rules (Part 91)
The NTSB's narrative final · quoted from the NTSB record
THE PILOT TAXIED THROUGH WHAT HE THOUGHT WAS ONLY A PUDDLE OF WATER. IT TURNED OUT TO BE A DEEP HOLE FILLED WITH WATER THAT HAD WASHED OUT DUE TO A BROKEN UNDERGROUND WATER PIPE. PRIVATE STRIP.
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: 10,000 hours in all; 8,000 in this make and model; 300 in the last 90 days; 100 in the last 30 days; 10,000 as pilot in command
- Medical certificate: Class 2 (valid medical--no waivers/lim.)
- Seat: unk
The aircraft
- Last inspection: inspection type not recorded; 0 hours since
- Maximum gross weight: 6,075 lb
- Seats: 1
- Landing gear: fixed
- Engine: P&W R-1340 (piston); 0 hours total
The flight
- Flight plan: none
- Runway 9, 5,000 ft by 100 ft
Weather at the time
- Light: dawn
- Visibility: 50 statute miles
- Sky: clear
- Temperature: 61°F (16°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.
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.