Grumman G164B accident near Immokalee, Florida, June 26, 1991
On June 26, 1991 at about 4:05 pm local time, a Grumman G164B, registered N3629X, was substantially damaged in an accident near Immokalee, Florida. 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
LOSS OF ENINE POWER DUE TO UNDETERMINED REASONS. CONTRIBUTING TO THE ACCIDENT WAS UNSUITABLE TERRAIN ENCOUNTEERED DURING THE FORCED LANDING.
Source: NTSB aviation accident database, copy made October 5, 2026. Docket and reports at the NTSB.
What the record shows
- Date
- June 26, 1991 · about 4:05 pm local time
- Place
- Immokalee, Florida
- Type
- Accident
- Injuries
- No one was hurt; 1 person was on board or involved.
- Weather
- visual conditions (good weather)
- Aircraft
- Grumman G164B · all G164Bs on the register
- Registration
- N3629X · no longer on the register · serial 753B
- Damage
- Substantial damage
- Flight
- Aerial application (crop spraying) flight · agricultural flying rules (Part 137)
The NTSB's narrative final · quoted from the NTSB record
WHILE MANEUVERING THE ENG LOST POWER. THE PLT LANDED THE ACFT IN A POND AND IT NOSED OVER AFTER TOUCHDOWN. THE ACFT WAS RECOVERED AND THE ENG AND CARBURETOR WERE OVERHAULED WHICH REVEALED NO EVIDENCE OF FAILURE OR MALFUNCTION. NO DETERMINATION COULD BE MADE AS TO THE REASON FOR THE LOSS OF ENG POWER.
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; instrument: airplane; rotorcraft: helicopter
- Flight time: 32,000 hours in all; 250 in the last 90 days; 85 in the last 30 days
- Medical certificate: Class 2 (valid medical--w/ waivers/lim.)
- Seat: unk
The aircraft
- Airframe total time: 2,926 hours
- Last inspection: annual inspection, January 25, 1991; 20 hours since
- Maximum gross weight: 5,200 lb
- Seats: 1
- Landing gear: fixed
- Engine: P&W R-1340-AN1 (piston); 0 hours total
- Operator: Airwork Enterprises Of Florida
The flight
- Flight plan: none
- Runway 0
Weather at the time
- Light: daylight
- Wind: from 135° at 5 knots
- Visibility: 10 statute miles
- Sky: scat at 3,000 ft
- Temperature: 90°F (32°C), dew point 75°F (24°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 N3629X 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.