Grumman G-164B accident near Iowa, Louisiana, July 6, 1999
On July 6, 1999 at about 12:22 pm local time, a Grumman G-164B, registered N6703Q, was substantially damaged in an accident near Iowa, Louisiana. 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 pilot's failure to maintain clearance with the crops being sprayed. A factor was the pilot's diverted attention.
Source: NTSB aviation accident database, copy made October 5, 2026. Docket and reports at the NTSB.
What the record shows
- Date
- July 6, 1999 · about 12:22 pm local time
- Place
- Iowa, Louisiana · map
- Type
- Accident
- Injuries
- 1 person had minor injuries.
- Weather
- visual conditions (good weather)
- Aircraft
- Grumman G-164B · all G-164Bs on the register
- Registration
- N6703Q · no longer on the register · serial 217B
- Damage
- Substantial damage
- Flight
- Aerial application (crop spraying) flight · agricultural flying rules (Part 137)
The NTSB's narrative final · quoted from the NTSB record
During an aerial application flight, the main landing gear of the agricultural airplane contacted a rice field, and the wheels bogged down in the field. The airplane nosed over and came to rest in the inverted position. The commercial pilot was spraying the field on an east-west direction. The operator stated that the field being sprayed was bordered on the south by a highway that, due to a construction detour, was heavily traveled by trucks. The wind on the morning of the accident was from the northeast. He added that the pilot was trying to avoid over spraying the vehicles on the highway, and his attention was momentarily diverted from keeping his clearance from the field being sprayed. The 1,450-hour pilot had accumulated 925 flight hours in the accident airplane. The pilot had flown 277 hours in the preceding 90 days, with 141 hours within the last 30 days.
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: 1,450 hours in all; 925 in this make and model
- Medical certificate: Class 2 (valid medical--w/ waivers/lim.)
- Seat: ctr
The aircraft
- Airframe total time: 7,976 hours
- Last inspection: annual inspection, December 1, 1998; 401 hours since
- Maximum gross weight: 5,500 lb
- Seats: 1
- Landing gear: fixed
- Engine: P&W R-1340-AN1 (piston); 0 hours total
The flight
- Flight plan: none
- Runway 0
Weather at the time
- Light: daylight
- Wind: from 360° at 5 knots
- Visibility: 7 statute miles
- Sky: broken clouds at 800 ft; not recorded
- Temperature: 75°F (24°C), dew point 72°F (22°C)
- Altimeter: 30.00 inHg
- Observation at 11:55 am from CWF, 22 miles away
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.