Bell 206L-3 N99TV
12 February 1992 · Fort Collins, Colorado, United States · Fatal
Summary
On 12 February 1992 at about 18:40 local time, a Bell 206L-3 registered N99TV, operated by Kusa Television, was involved in an accident near Fort Collins, Colorado, United States. 3 people were on board and 2 died, one was seriously injured. The aircraft was substantially damaged. The NTSB has published a probable cause for this accident; it is quoted in full below.
The record
- Date
- at 18:40
- Classification
- Accident
- Location
- Fort Collins, Colorado, United States
- Coordinates
- 40.5201, -105.1403
- Aircraft
- Bell 206L-3
- Registration
- N99TV
- Category
- Helicopter
- Engines
- 1
- Operator
- Kusa Television
- Operating rule
- Part 91: General Aviation
- Purpose of flight
- Ferry
- Phase of flight
- Not recorded
- Route
- Denver → Fort Collins
- Aircraft damage
- Substantial
- Weather
- IMC
- Light
- Day
- NTSB number
- DEN92FA034
People
2 people died.
| On board | Died | Serious | Minor | Uninjured |
|---|---|---|---|---|
| 3 | 2 | 1 | 0 | 0 |
Probable cause
FAILURE OF THE NUMBER 2-1/2 BEARING DUE TO AN OBSTRUCTION OF A BEARING OIL FEED TUBE BY FOREIGN MATERIAL. FACTORS RELATED TO THE ACCIDENT WERE: IMPROPER MAINTENANCE DURING ENGINE OVERHAUL, AND WEATHER/TERRAIN/WATER CONDITIONS IN THE EMERGENCY LANDING AREA.
Quoted verbatim from the NTSB record. This site does not paraphrase or interpret it.
Read the full NTSB narrative
THE HELICOPTER WAS BEING FLOWN TO A MAINTENANCE FACILITY TO CORRECT A 'ROTOR VIBRATION' THAT HAD BEEN DETECTED BY THE PILOT. WHILE IN CRUISE FLIGHT OVER A RESERVOIR, A LOSS OF ENGINE POWER OCCURRED, WHEN THE #2-1/2 BEARING FAILED DUE TO OIL STARVATION. THE OIL STARVATION RESULTED FROM AN OBSTRUCTION IN THE BEARING OIL FEED TUBE BY A PARTICLE OF FOREIGN MATERIAL. THERE WAS EVIDENCE THE MATERIAL WAS INTRODUCED INTO THE SYSTEM DURING OVERHAUL, ABOUT 9 FLIGHT HOURS BEFORE THE ACCIDENT. THE PILOT MADE AN AUTOROTATION THROUGH DENSE FOG TO THE SURFACE OF THE RESERVOIR, WHICH CONTAINED PATCHES OF ICE. THE HELICOPTER SANK IN 190 FT OF WATER. WATER TEMPERATURE WAS 30 DEG F, AIR TEMPERATURE WAS 34 DEG, AND WIND WAS 170 DEG AT 8 KTS. ACCORDING TO AVAILABLE INFORMATION, USEFUL CONSCIOUS TIME UNDER THESE CONDITIONS WOULD HAVE BEEN ABOUT 15 MIN. THE FIRST RESCUE PERSONNEL REACHED THE PILOT APPROXIMATELY 45 MIN FOLLOWING THE ACCIDENT. THE PILOT WAS THE ONLY PERSON ON THE SURFACE AT THAT TIME.
Quoted verbatim from the NTSB record.
Other Bell 206 accidents
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 29 Jan 1992 | Bell 206L-3 | E.i. Blk 108 | Industrial Helicopters Inc. | Minor injuries | - |
| 2 Mar 1992 | Bell 206BIII | Glenbrook, Nevada, United States | Smith Helicopter, Inc. | No injuries | - |
| 15 Feb 1992 | Bell 206L-3 | South Pelto #1 | Petroleum Helicoters, Inc. | No injuries | - |
| 26 Feb 1992 | Bell 206B III | Grand Isle | Chevron USA Incorporated | No injuries | - |
| 1 Apr 1992 | Bell 206BIII | Kaaawa, Hawaii, United States | Hawaii Intl Helicopters | No injuries | - |
| 21 Nov 1992 | Bell 206B-III | Hilo, Hawaii, United States | Paramount Pictures | Minor injuries | - |
All 1,732 records for this type
Other accidents in this area
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 12 Apr 1992 | Cessna 310-L | Hugo, Colorado, United States | Bell, Anthony H. | No injuries | - |
| 4 May 1992 | Boeing 757-222 | Denver, Colorado, United States | United Airlines | Fatal | 1 |
| 8 Jul 1992 | Piper PA-34-200T | Lamar, Colorado, United States | Lyddon Flying Service | No injuries | - |
| 21 Jul 1992 | Embraer EMB-120 RT | Denver, Colorado, United States | Mesa Airlines, Inc. | No injuries | - |
| 4 Jan 1992 | Cessna 152 | Falcon, Colorado, United States | Patrick Clayton | No injuries | - |
| 16 Jan 1992 | Cessna 172P | Englewood, Colorado, United States | P.c. Flyers, Inc. | No injuries | - |