Aerospatiale AS350BA N12NT
22 October 2000 · Kamuela, Hawaii, United States · Serious injuries
Summary
On 22 October 2000 at about 18:07 local time, a Aerospatiale AS350BA registered N12NT was involved in an accident near Kamuela, Hawaii, United States. One person was on board and 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 18:07
- Classification
- Accident
- Location
- Kamuela, Hawaii, United States
- Coordinates
- 20.0399, -155.7009
- Aircraft
- Aerospatiale AS350BA
- Registration
- N12NT
- Category
- Helicopter
- Engines
- 1
- Operator
- Not recorded
- Operating rule
- Part 91: General Aviation
- Purpose of flight
- Positioning
- Phase of flight
- Not recorded
- Route
- Unknown → Private Helipad
- Aircraft damage
- Substantial
- Weather
- VMC
- Light
- Day
- NTSB number
- LAX01LA025
People
1 person was seriously injured.
| On board | Died | Serious | Minor | Uninjured |
|---|---|---|---|---|
| 1 | 0 | 1 | 0 | 0 |
Probable cause
A total loss of engine power due to the failure of the engine manufacturer's repair station personnel to install a circlip during engine overhaul, which resulted in the turbine assembly aft support bearing becoming dislodged and seized on the shaft. A factor in the accident was the rough and uneven nature of the landing site terrain.
Quoted verbatim from the NTSB record. This site does not paraphrase or interpret it.
Read the full NTSB narrative
A hard autorotation landing resulted from a loss of engine power in the takeoff initial climb. Inspection of the engine after the accident revealed that the engine gas generator compressor/turbine shaft was seized. The engine was overhauled 61 hours prior to the accident. The gas generator turbine aft support bearing was found dislodged from the bearing support cage. A circlip used to retain the bearing in the cage was not present and there was no evidence of the circlip having been installed during overhaul. The autorotation was made to an area of dirt and rocks that had a slight upslope.
Quoted verbatim from the NTSB record.
Other Aerospatiale AS350BA accidents
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 3 Oct 2000 | Aerospatiale AS350BA | El Cajon, California, United States | - | No injuries | - |
| 23 Sep 2001 | Aerospatiale AS350BA | Chico, California, United States | - | Fatal | 1 |
| 24 Aug 1999 | Aerospatiale AS350BA | Kahului, Hawaii, United States | - | No injuries | - |
| 6 Sep 2001 | Aerospatiale AS350BA | Kemmerer, Wyoming, United States | Crew Concepts, Inc. | No injuries | - |
| 6 Jun 1998 | Aerospatiale AS350BA | Burbank, California, United States | - | No injuries | - |
| 12 Sep 2002 | Aerospatiale AS350BA | Peach Springs, Arizona, United States | - | Minor injuries | - |
Other accidents in this area
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 21 Apr 2000 | Eurocopter AS-350 BA | Kahului, Hawaii, United States | - | No injuries | - |
| 29 Nov 2000 | Cessna 305A | Mokuleia, Hawaii, United States | - | No injuries | - |
| 30 Nov 2000 | Wsk Pzl Warzawa-Okecie PZL-104 WILGA 80 | Kaunakakai, Hawaii, United States | - | Serious injuries | - |
| 21 Jul 2000 | Aerospatiale AS 355F1 | Kahului, Maui, Hawaii, United States | - | Fatal | 7 |
| 11 May 2000 | Rockwell NA-265-65 | Kaunakakai, Hawaii, United States | - | Fatal | 6 |
| 9 May 2000 | Lockheed L1011-385-1 | Maui, Hawaii, United States | - | No injuries | - |