ASN Wikibase Occurrence # 134222
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| Date: | Wednesday 14 November 2001 |
| Time: | 00:33 |
| Type: |  Eurocopter Bo 105LS A-3 |
| Owner/operator: | Bannock Regional Medical Center |
| Registration: | N93LF |
| MSN: | 2038 |
| Year of manufacture: | 1991 |
| Total airframe hrs: | 3811 hours |
| Engine model: | Allison 250-C28C |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Destroyed |
| Category: | Accident |
| Location: | near Mud Lake, ID -
 United States of America
|
| Phase: | Initial climb |
| Nature: | Ferry/positioning |
| Departure airport: | Mud Lake, ID |
| Pocatello, ID (PIH) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Information verified through data from accident investigation authorities |
In a written statement, the pilot reported that during a medical transport flight he performed a precautionary off airport landing due to a problem with the helicopter's fuel transfer pumps. After the repairs were made to the helicopter, the pilot initiated a normal departure under dark night conditions. Shortly after departure the helicopter collided with terrain. The pilot later reported that during the initial climb out, he lost visual references outside the aircraft and became disoriented just before the helicopter collided with terrain. The pilot reported no mechanical malfunction or failure had occurred during the accident flight.
Probable Cause: Pilot's failure to maintain adequate separation from terrain during the initial climb. Factors include spatial disorientation and a dark moonless night.
Accident investigation:
 |
|
Sources:
NTSB: https://www.ntsb.gov/_layouts/ntsb.aviation/brief.aspx?ev_id=20011121X02282&key=1
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 27-Oct-2012 10:58 | TB | Updated [Aircraft type, Operator, Location, Phase, Destination airport, Source, Narrative] |
| 30-Oct-2012 05:00 | TB | Updated [Aircraft type] |
| 11-Oct-2016 13:49 | TB | Updated [Time, Source] |
| 21-Dec-2016 19:26 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
| 10-Dec-2017 13:17 | ASN Update Bot | Updated [Operator, Source, Narrative] |
| 10-Dec-2018 18:58 | TB | Updated [Operator] |
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