Bell 206L-3 accident near Pioche, Nevada, November 3, 1998
On November 3, 1998 at about 5:30 pm local time, a Bell 206L-3 (helicopter), registered N946L, was substantially damaged in an accident near Pioche, Nevada. It was a flight of an unrecorded kind under charter and air-taxi rules (Part 135). 1 person had minor injuries; 2 others were unhurt. The weather was visual conditions (good weather).
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The NTSB's probable cause their words, unchanged
The loss of tail rotor effectiveness, due to the installation of incorrect pitch links by the maintenance facility. A factor in the accident was the lack of an adequate quality assurance program in the maintenance facility.
Source: NTSB aviation accident database, copy made October 4, 2026. Docket and reports at the NTSB.
What the record shows
- Date
- November 3, 1998 · about 5:30 pm local time
- Place
- Pioche, Nevada · map
- Type
- Accident
- Injuries
- 1 person had minor injuries; 2 others were unhurt.
- Weather
- visual conditions (good weather)
- Aircraft
- Bell 206L-3 · all 206L-3s on the register
- Registration
- N946L · registry record · serial 51078
- Damage
- Substantial damage
- Flight
- Flight of an unrecorded kind · charter and air-taxi rules (Part 135)
The NTSB's narrative final · quoted from the NTSB record
The pilot was approaching a narrow ridge. About 25 feet agl, he ran out of left pedal and the helicopter began an uncommanded right turn. The pilot reported that he attempted to gain altitude in order to remain on the ridge. He then entered an autorotation and the aircraft impacted the ground in a level attitude and rolled onto its left side. Review of the maintenance records revealed that on October 30, 1998, the maintenance facility had removed the tail rotor hub and blade assembly from the accident aircraft, and replaced it with the tail rotor hub and blade assembly from a Bell 206L-1. This was the first flight since the replacement. The Director of Maintenance reported that the maintenance technician did not perform a rigging check after installing the new assembly because he assumed that the same assembly did not require a check. According to the maintenance records, the tail rotor pitch links that were installed on the accident aircraft were Part Number 206-010-795-101. The maintenance manual states that the pitch links for a Bell 206L-3 should be Part Number 206-010-795-105. According to a representative from Bell Helicopter Textron, all the parts from the tail rotor hub and blade assembly are compatible from the Bell 206L-1 to the Bell 206L-3, except for the tail rotor pitch links. He further stated that the tail rotor pitch links on the Bell 206L-1 are smaller than those from the Bell 206L-3, and would give the pilot less tail rotor authority.
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: instrument: helicopter; rotorcraft: helicopter
- Flight time: 5,770 hours in all; 860 in this make and model; 213 in the last 90 days; 65 in the last 30 days; 5,650 as pilot in command
- Medical certificate: Class 2 (valid medical--no waivers/lim.)
- Seat: rgt
The aircraft
- Airframe total time: 10,409 hours
- Last inspection: 100-hour inspection, October 30, 1998; 6 hours since
- Maximum gross weight: 4,150 lb
- Seats: 7
- Landing gear: fixed
- Engine: Allison 250-C30P (turboshaft); 0 hours total
The flight
- Departed from: Caliente NV at 5:00 pm
- Runway 0
Weather at the time
- Light: daylight
- Visibility: 20 statute miles
- Sky: clear
- Temperature: 32°F (0°C), dew point 0°F (-18°C)
Injuries
| Fatal | Serious | Minor | None | |
|---|---|---|---|---|
| Crew | 1 | |||
| Passengers | 2 |
About this page
Everything above comes from the NTSB's public accident database: the narrative, probable cause and findings are the NTSB's own words, and the coded tables behind its report (pilot, aircraft, flight, weather, injuries, sequence of events) are written out in plain English. Pilots' ages, home towns and medical details are left out on purpose. The docket at the NTSB holds the report as a PDF and the investigation's photographs and documents. This site never names pilots, passengers or anyone else involved. A preliminary report describes what is known soon after the event and can change; the final report, with the probable cause, usually follows one to two years later and this page is refreshed when it does. Case number LAX99LA022.