Grumman G-164A accident near Morse, Louisiana, September 3, 1983
On September 3, 1983 at about 1:30 pm local time, a Grumman G-164A, registered N7699, was substantially damaged in an accident near Morse, Louisiana. 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 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
- September 3, 1983 · about 1:30 pm local time
- Place
- Morse, Louisiana · map
- Type
- Accident
- Injuries
- No one was hurt; 1 person was on board or involved.
- Weather
- visual conditions (good weather)
- Aircraft
- Grumman G-164A · all G-164As on the register
- Registration
- N7699 · registry record · serial 1004
- 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 A CLIMBING TURN AFTER TAKEOFF, THE ENG LOST POWER & STARTED SMOKING LIGHTLY. THE PLT DUMPED HIS CHEMICAL LOAD & WAS ABLE TO CLEAR A SET OF POWER LINES. HE THEN MADE A FORCED LANDING IN A FLOODED RICE FIELD WHERE THE ACFT NOSED OVER. AN INVESTIGATION REVEALED THAT 1 OF 3 BEARINGS, PN 12768, ON THE IMPELLER SHAFT OF THE ENG BLOWER HAD FAILED. THIS ALLOWED THE SHAFT TO SHIFT FORWARD & RUB HOLES IN THE COLLECTOR CASE ASSEMBLY, WHICH RESULTED IN THE ENG FAILURE.
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: multi-engine land; single-engine land
- Flight time: 5,480 hours in all; 5,000 in this make and model; 130 in the last 90 days; 5,400 as pilot in command
- Medical certificate: Class 2 (valid medical--w/ waivers/lim.)
- Seat: frt
The aircraft
- Airframe total time: 5,129 hours
- Last inspection: annual inspection
- Maximum gross weight: 4,500 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
- Visibility: 10 statute miles
- Sky: clear
- Temperature: 0°F (-18°C), dew point 0°F (-18°C)
- Altimeter: 29.00 inHg
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.