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| Date: | Wednesday 25 July 2018 |
| Time: | 10:45 LT |
| Type: |  Eurocopter AS 350B3 Ecureuil |
| Owner/operator: | Trans Aero Helicopters |
| Registration: | N354LA |
| MSN: | 3285 |
| Year of manufacture: | 2000 |
| Total airframe hrs: | 6472 hours |
| Engine model: | Safran Arriel |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Other fatalities: | 0 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | 23mi NE of Kobuk, AK -
 United States of America
|
| Phase: | Manoeuvring (airshow, firefighting, ag.ops.) |
| Nature: | External load operation |
| Departure airport: | Kobuk, AK |
| Kobuk, AK | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The commercial pilot of the helicopter was transporting equipment in support of remote mining activities using a 100-foot long-line. During takeoff, and while preparing to lift the external sling load, he inadvertently allowed the helicopter to drift laterally to the right and the right skid struck the ground, resulting in a dynamic rollover. The helicopter continued to roll to the right, and the main rotor blades struck the ground.
The helicopter subsequently came to rest on its right side, sustaining substantial damage to the main rotor drive system, fuselage, and tail boom. The pilot sustained minor injuries, and reported that there were no preaccident mechanical failures or malfunctions with the helicopter that would have precluded normal operation.
Probable Cause: The pilot's inadvertent dynamic rollover during takeoff.
Accident investigation:
 |
|
Sources:
NTSB ANC18CA056
FAA register: http://registry.faa.gov/aircraftinquiry/NNum_Results.aspx?NNumbertxt=354LA
Location
Media:
This #helicopter was allowed to drift to the right while preparing to lift a load at a remote mining exploration site in #Alaska.https://t.co/TP9oz45Jn0 #heslo #accident #mining #flightsafety #aviationsafety pic.twitter.com/JA3L1dJGB7
— Aerossurance (@Aerossurance) June 12, 2021
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 06-Aug-2018 22:42 | Aerossurance | Added |
| 30-Nov-2018 10:32 | Aerossurance | Updated [Source, Narrative, ] |
| 12-Jun-2021 09:33 | Aerossurance | Updated [Total occupants, Source, Embed code, ] |
| 09-Jul-2022 05:21 | ASN Update Bot | Updated [Time, Operator, Other fatalities, Nature, Departure airport, Destination airport, Source, Narrative, Category, Accident report, ] |
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