Grumman G-164A accident near Lindon, Colorado, May 1, 1994
On May 1, 1994 at about 1:30 pm local time, a Grumman G-164A, registered N8559H, was substantially damaged in an accident near Lindon, Colorado. 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
INACCURATE PREFLIGHT PLANNING AND PREPARATION FOR THE FLIGHT. A FACTOR WAS SOFT TERRAIN ON THE LANDING STRIP.
Source: NTSB aviation accident database, copy made October 5, 2026. Docket and reports at the NTSB.
What the record shows
- Date
- May 1, 1994 · about 1:30 pm local time
- Place
- Lindon, Colorado · 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
- N8559H · no longer on the register · serial 1409
- 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 TAKEOFF ROLL FROM A SOFT GRASS STRIP ON AN AERIAL APPLICATION FLIGHT, THE AIRCRAFT STRUCK A FENCE AND TREES SHORTLY AFTER BECOMING AIRBORNE. THE AIRCRAFT CAME TO REST ON ITS NOSE OFF THE END OF THE PRIVATE AIRSTRIP. THE PILOT WAS NOT INJURED AND NO CHEMICALS WERE SPILLED.
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; instrument: airplane
- Flight time: 12,000 hours in all; 4,000 in this make and model; 11,500 as pilot in command
- Medical certificate: Class 2 (valid medical--w/ waivers/lim.)
- Seat: frt
The aircraft
- Last inspection: annual inspection, January 22, 1994; 79 hours since
- Maximum gross weight: 6,075 lb
- Seats: 1
- Landing gear: fixed
- Engine: P&W R-985-SE (piston); 0 hours total
The flight
- Flight plan: none
- Runway 0
Weather at the time
- Light: daylight
- Wind: from 230° at 6 knots
- Visibility: 25 statute miles
- Sky: broken clouds at 18,000 ft; scat at 8,000 ft
- Temperature: 43°F (6°C), dew point 36°F (2°C)
- Altimeter: 30.00 inHg
- Observation at 1:00 pm from AKO, 35 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.