Bell 47-G5 accident near Riverside, California, August 30, 1996
On August 30, 1996 at about 5:00 am local time, a Bell 47-G5 (helicopter), registered N57RA, was substantially damaged in an accident near Riverside, California (Riverside Municipal airport). It was a personal flight under general aviation rules (Part 91). 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 inaccurate perception of altitude which resulted in an improper flare and subsequent hard landing, and non use of the landing light.
Source: NTSB aviation accident database, copy made October 5, 2026. Docket and reports at the NTSB.
What the record shows
- Date
- August 30, 1996 · about 5:00 am local time
- Place
- Riverside, California · Riverside Municipal · map
- Type
- Accident
- Injuries
- No one was hurt; 1 person was on board or involved.
- Weather
- visual conditions (good weather)
- Aircraft
- Bell 47-G5 · all 47-G5s on the register
- Registration
- N57RA · no longer on the register · serial 25006
- Damage
- Substantial damage
- Flight
- Personal flight · general aviation rules (Part 91)
The NTSB's narrative final · quoted from the NTSB record
The pilot was regaining night flying proficiency and was practicing a night autorotation landing from 3,000 feet without use of the aircraft's landing light. There was a full moon and the ground was visible. During the autorotation flare, he misjudged the aircraft's height above the surface, flared too high, and the helicopter dropped the last 4 or 5 feet. The aircraft landed hard with little energy in the main rotor and the rotor severed the tail boom. The pilot reported that he had no other night flying time in the previous 90 days, and that there were no mechanical malfunctions involved. He also said that the landing light was operational had he chosen to use it.
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: instructor: helicopter; rotorcraft: helicopter
- Flight time: 1,500 hours in all; 600 in this make and model; 50 in the last 90 days; 10 in the last 30 days; 1,300 as pilot in command; 200 on instruments
- Medical certificate: Class 1 (valid medical--no waivers/lim.)
- Seat: left
The aircraft
- Airframe total time: 5,013 hours
- Last inspection: annual inspection, March 26, 1996; 45 hours since
- Maximum gross weight: 2,850 lb
- Seats: 3
- Landing gear: fixed
- Engine: Lycoming VO-435-B1A (piston); 0 hours total
The flight
- Departed from: RAL at 4:50 am
- Flight plan: none
- Runway 34, 2,850 ft by 50 ft
Weather at the time
- Light: night, bright
- Visibility: 7 statute miles
- Sky: clear
- Temperature: 81°F (27°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.
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.