ASN Wikibase Occurrence # 167076
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| Date: | Wednesday 11 June 2014 |
| Time: | 11:40 |
| Type: |  Eurocopter AS 350B3 AStar |
| Owner/operator: | Can See Aviation LLC |
| Registration: | N356EV |
| MSN: | 3649 |
| Year of manufacture: | 2002 |
| Engine model: | Turbomeca Arriel 2B |
| Fatalities: | Fatalities: 0 / Occupants: 3 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Merrill Field Airport (PAMR), Anchorage, AK -
 United States of America
|
| Phase: | Standing |
| Nature: | Training |
| Departure airport: | Merrill Field, Anchorage (PAMR) |
| Gulkana (PAGK) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
During runup, the helicopter experienced a main rotor over-speed and subsequent ground resonance event on the Evergreen ramp at Merrill Field Airport (PAMR), Anchorage, Alaska. The first pilot, a certified flight instructor sitting in the left seat, reported he had been hired to ferry the helicopter to Georgetown, Texas, and was providing AS350B3 helicopter transition training to the second pilot in the right seat, the machine’s new owner. The first pilot reported some difficulty starting the helicopter and asked for assistance. The engine was eventually started successfully.
The instructor noted that while the helicopter was operating at flight idle, the yellow twt.grip light was illuminated. He instructed the new owner to advance the collective-mounted throttle twist grip slowly to the open position until the light went out. As the second pilot began to advance the throttle, the engine immediately went to a high rpm and the helicopter began shaking violently and rotated about 240 degrees to the left. The instructor performed an emergency engine shutdown before all occupants exited the helicopter.
The helicopter sustained substantial damage and the three occupants onboard were not injured.
Accident investigation:
 |
|
Sources:
https://flightaware.com/resources/registration/N356EV
https://www.flickr.com/photos/avsfan/2659082915/
https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/89436/pdf
https://data.ntsb.gov/Docket?ProjectID=89436
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 19-Jun-2014 22:03 | Geno | Added |
| 04-Sep-2014 08:08 | Aerossurance | Updated [Narrative] |
| 04-Sep-2014 08:10 | Aerossurance | Updated [Nature] |
| 05-Oct-2015 17:00 | Aerossurance | Updated [Aircraft type, Source] |
| 21-Dec-2016 19:28 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
| 01-Jan-2021 12:51 | Aerossurance | Updated [Departure airport, Source, Narrative] |
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