Grumman G-164 accident near Knoble, Arkansas, June 1, 1987
On June 1, 1987 at about 7:00 pm local time, a Grumman G-164, registered N730Y, was substantially damaged in an accident near Knoble, Arkansas. It was an aerial application (crop spraying) flight under agricultural flying rules (Part 137). 1 person 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
- June 1, 1987 · about 7:00 pm local time
- Place
- Knoble, Arkansas · map
- Type
- Accident
- Injuries
- 1 person had minor injuries.
- Weather
- visual conditions (good weather)
- Aircraft
- Grumman G-164 · all G-164s on the register
- Registration
- N730Y · no longer on the register · serial 291
- 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 PIC HAD TAKEN OFF FOR A LOCAL AERIAL APPLICATION OPERATION. WHILE MANEUVERING TO MAKE INITIAL APPLICATION THE ACFT STARTED TO LOSE POWER AND SINK DURING A DOWNWIND TURN. PIC DUMPED HIS LOAD BUT ACFT CONTINUED TO SINK UNTIL ONE WING STRUCK THE TERRAIN AND NOSED OVER.
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
- Flight time: 800 hours in all; 455 in this make and model; 26 in the last 90 days; 35 in the last 30 days; 738 as pilot in command
- Medical certificate: Class 2 (valid medical--no waivers/lim.)
- Seat: ctr
The aircraft
- Airframe total time: 2,935 hours
- Last inspection: annual inspection, December 17, 1986; 26 hours since
- Maximum gross weight: 4,500 lb
- Seats: 1
- Landing gear: fixed
- Engine: P&W R-985-AN1 (piston); 0 hours total
The flight
- Flight plan: none
- Runway 0
Weather at the time
- Light: daylight
- Wind: from 200° at 12 knots
- Sky: clear
- Temperature: 88°F (31°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 N730Y the same tail number, which may have belonged to a different aircraft at the time
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.