Bell 412SP accident near Mataram, West Nusa, Id, September 25, 2011
On September 25, 2011 at about 5:41 am local time, a Bell 412SP (helicopter), registered PKOVC, was substantially damaged in an accident during enroute (cruise) near Mataram, West Nusa. It was flown under non-U.S. commercial rules. 2 people were killed.
The NTSB's probable cause their words, unchanged
The NTSB has not yet published a probable cause for this accident. Investigations usually take one to two years; this page updates when the final report is released.
Source: NTSB aviation accident database, copy made October 5, 2026. Docket and reports at the NTSB.
What the record shows
- Date
- September 25, 2011 · about 5:41 am local time
- Place
- Mataram, West Nusa, Indonesia · map
- Type
- Accident
- Injuries
- 2 people were killed.
- Weather
- not recorded
- Aircraft
- Bell 412SP · all 412SPs on the register
- Registration
- PKOVC · no longer on the register · serial 34019
- Damage
- Substantial damage
- Flight
- Flight · non-U.S. commercial rules
The NTSB's narrative preliminary · quoted from the NTSB record
On September 25, 2011, at 1341 local time (0541 UTC) a Bell Helicopter 412SP, Indonesia registry PK-OVC, crashed in a jungle under unknown circumstances 150 kilometers east of Selaparang Airport, Mataram, West Nusa Tenggara, Indonesia. The Helicopter was operated by PT Airfast Indonesia under the pertinent provisions of the Indonesia Civil Aviation Regulations and was on a cargo flight. The helicopter sustained substantial damage and both crew members were fatally injured. The flight originated at Dodo Camp Airport and was destined for Lemurung Camp. This report is for informational purposes and only contains information released by the government of Indonesia. The accident is under the jurisdiction of, and is being investigated by, the National Transportation Safety Committee (NTSC) of the government of Indonesia. Any further information can be obtained by contacting the NTSC: Ministry of Transportation Building, 3rd Floor Jl. Medan Merdeka Timur No. 5 Jakarta, Indonesia Telephone 62 21 3517606 Facsimile 62 21 3517606 www.dephub.go.id/knkt Email knkt@dephub.go.id
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
What happened, in order
- Unknown or undetermined during enroute (cruise) defining event
The aircraft
- Landing gear: fixed
The flight
- Departed from: Dodo Camp
- Destination: Lemurung Camp
- Flight plan: not recorded
Weather at the time
- Temperature: 0°F (-18°C), dew point 0°F (-18°C)
Injuries
| Fatal | Serious | Minor | None | |
|---|---|---|---|---|
| Flight crew | 2 |
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.