Grumman G-164-B accident near Pullman, Washington, July 18, 1991
On July 18, 1991 at about 3:00 am local time, a Grumman G-164-B, registered N6657Q, was substantially damaged in an accident near Pullman, Washington (None 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).
The NTSB's probable cause their words, unchanged
THE PILOT'S FAILURE TO MAINTAIN RUNWAY ALIGNMENT. FACTORS INCLUDE HIGH VEGETATION GROWING CLOSE TO THE RUNWAY.
Source: NTSB aviation accident database, copy made October 5, 2026. Docket and reports at the NTSB.
What the record shows
- Date
- July 18, 1991 · about 3:00 am local time
- Place
- Pullman, Washington · None · map
- Type
- Accident
- Injuries
- No one was hurt; 1 person was on board or involved.
- Weather
- visual conditions (good weather)
- Aircraft
- Grumman G-164-B · all G-164-Bs on the register
- Registration
- N6657Q · no longer on the register · serial 183B
- Damage
- Substantial damage
- Flight
- Aerial application (crop spraying) flight · agricultural flying rules (Part 137)
The NTSB's narrative final · quoted from the NTSB record
THE PILOT OF THE GRUMMAN G-164B FAILED TO KEEP THE AIRCRAFT ALIGNED WITH THE CENTER OF THE RUNWAY, DURING THE TAKEOFF ROLL, AND HOOKED THE SPRAY BOOM ON SOME TALL WHEAT, GROWING BESIDE THE AIRSTRIP. THE AIRCRAFT WAS PULLED INTO A HARD RIGHT DECELERATION.
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: 8,800 hours in all; 5,000 in this make and model; 400 in the last 90 days; 150 in the last 30 days; 8,700 as pilot in command
- Medical certificate: Class 2 (valid medical--w/ waivers/lim.)
- Seat: unk
The aircraft
- Last inspection: inspection type not recorded; 0 hours since
- Maximum gross weight: 3,800 lb
- Seats: 1
- Landing gear: fixed
- Engine: P&W R1340 AN-2 (piston); 0 hours total
- Operator: Dennis Flying Service INC.
The flight
- Flight plan: none
- Runway 23, 3,300 ft by 60 ft
Weather at the time
- Light: not reported
- Sky: clear
- Temperature: 0°F (-18°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.