Bell 47G-5 accident near Guadalupe, California, November 1, 1989
On November 1, 1989 at about 4:00 pm local time, a Bell 47G-5 (helicopter), registered N4798R, was substantially damaged in an accident near Guadalupe, California. 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 PILOT'S FAILURE TO MAINTAIN SUFFICIENT CLEARANCE ALLOWING THE AIRCRAFT TO COLLIDE WITH A WOODEN POWER POLE. CONTRIBUTING TO THE ACCIDENT WAS THE SUNGLARE WHICH INHIBITED THE PILOT'S VISION.
Source: NTSB aviation accident database, copy made October 5, 2026. Docket and reports at the NTSB.
What the record shows
- Date
- November 1, 1989 · about 4:00 pm local time
- Place
- Guadalupe, California · map
- Type
- Accident
- Injuries
- No one was hurt; 1 person was on board or involved.
- Weather
- visual conditions (good weather)
- Aircraft
- Bell 47G-5 · all 47G-5s on the register
- Registration
- N4798R · registry record · serial 7925
- 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 PILOT OF A HELICOPTER CROP DUSTER COLLIDED WITH A WOODEN POWER POLE DURING AERIAL APPLICATION IN VISUAL METEOROLOGICAL CONDITIONS. THE PILOT WAS AWARE OF THE OBSTACLE BEFORE THE FLIGHT. THE PILOT WAS ON THE SIXTH SWATH RUN ON A SOUTHEASTERLY DIRECTION HEADING DIRECTLY INTO THE RISING SUN ON THE HORIZON. THE PILOT REPORTED NO MALFUNCTION WITH THE AIRCRAFT.
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: flight instructor, commercial pilot
- Ratings: single-engine land; instructor: helicopter; rotorcraft: helicopter
- Flight time: 6,800 hours in all; 2,100 in this make and model; 30 in the last 90 days; 20 in the last 30 days
- Medical certificate: Class 2 (valid medical--no waivers/lim.)
- Seat: left
The aircraft
- Airframe total time: 15,216 hours
- Last inspection: annual inspection, October 28, 1989; 3 hours since
- Maximum gross weight: 2,850 lb
- Seats: 3
- Landing gear: fixed
- Engine: Lycoming VO-435-B1A (piston); 0 hours total
The flight
- Flight plan: none
- Runway 0
Weather at the time
- Light: daylight
- Sky: clear
- Temperature: 0°F (-18°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 N4798R 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.