ASN Wikibase Occurrence # 237618
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| Date: | Monday 24 December 2018 |
| Time: | 22:15 |
| Type: |  MBB BK 117C-2 |
| Owner/operator: | Mayo Clinic |
| Registration: | N145EC |
| MSN: | 9181 |
| Year of manufacture: | 2008 |
| Total airframe hrs: | 6055 hours |
| Engine model: | Turbomeca Arriel 1E2 |
| Fatalities: | Fatalities: 0 / Occupants: 3 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Strum, WI -
 United States of America
|
| Phase: | Landing |
| Nature: | Ambulance |
| Departure airport: | Eau Claire Airport, WI (EAU/KEAU) |
| Strum, WI | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The pilot and two crewmembers were on a night air medical flight. While on approach to the landing zone with several obstructions nearby, the pilot noticed a street sign and slowed the helicopter, which lowered the tailboom and tail rotor. The helicopter's tail rotor then struck a hose rack on a fire truck, which resulted in a loss of control and impact with the ground. The helicopter sustained substantial damage to the tail rotor. The pilot reported no preaccident mechanical failures or malfunctions with the helicopter that would have precluded normal operation.
Probable Cause: The pilot's failure to maintain clearance from the fire truck.
Accident investigation:
 |
|
Sources:
NTSB
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 03-Jul-2020 12:37 | ASN Update Bot | Added |
| 22-Jul-2020 06:43 | Anon. | Updated [Aircraft type, Narrative] |
| 22-Jul-2020 06:43 | harro | Updated [Aircraft type, Nature, Narrative, Accident report, ] |
| 04-Dec-2023 14:35 | harro | Updated [Other fatalities, Departure airport] |
| 16-Mar-2024 09:02 | ASN | Updated [Accident report] |
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