# Incident 20120522015139I: Eurocopter AS 350 B2, Seattle, WA, May 22, 2012

- Type: FAA incident report (Accident/Incident Data System), as reported
- Date: May 22, 2012, 14:30 local time
- Place: Seattle, WA
- Airport: Boeing Field/King County International
- Damage: Minor damage
- Phase of flight: Maneuver
- Operating rules: General operating rules (Part 91)
- Location: 47.4669° N, 122.3353° W: From the FAA
- Nearby events: https://openairdocs.org/map.md?lat=47.4669&lon=-122.3353&mi=10
- Aircraft: N105TV, a cancelled registration (https://openairdocs.org/deregistered/N105TV-2015-09-25) (OpenAirDocs)
- Registry model: Eurocopter AS 350 B2 (registry code 8680950, https://openairdocs.org/model/eurocopter-as-350-b2) (OpenAirDocs)
- Registry engine: Turbomeca ARRIEL-1D1 (registry code 60053, https://openairdocs.org/engine/turbomeca-arriel-1d1) (OpenAirDocs)
- Reported make and model: EUROCOPTER AS 350 B2
- Reported engine: TURBOMECA ARRIEL 1D1
- People aboard: 1
- Fatal injuries: 0
- Other injuries: 0
- NTSB investigation: [NTSB WPR12IA248](https://openairdocs.org/ntsb/WPR12IA248) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/20120522015139I

## Narrative

As the FAA filed it, in capitals; the FAA replaces private details with ^PRIVACY DATA OMITTED^.

ON MAY 22,2012, ABOUT 1430 PACIFIC DAYLIGHT TIME, A EUROCOPTER AS-350 B2, N105TV, SUBSTAINED MINOR DAMAGE FOLLOWING AN IN-FLIGHT SEPERATION OF A TAIL ROTOR PITCH CHANGE LINK BOLT WHILE MANEUVERING NEAR THE SEATTLE TACOMA INTERNATIONAL AIRPORT (SEA) , SEATTLE, WASHINGTON. THE PILOT REPORTED THAT HE HAD JUST ENTERED A SLOW ORBIT, ABOUT 1200 FEET ABOVE THE GROUND, WHEN THE HELICOPTER EXPERIENCED WHAT HE DESCRIBED AS A SEVERE VIBRATION. THE VIBRATION WAS CONTINUOUS AND SO SEVERE, THAT THE PILOT DIVERTED TO BFI FOR LANDING. THE PILOT REPORTED THAT JUST BEFORE LANDING, WITH FULL RIGHT PEDAL INPUTS, THE HELICOPTER ENTERED A SLOW TURN TO THE LEFT, WHICH CONTINUED TILL TOUCHDOWN.

## The NTSB's investigation of this event (1)

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [NTSB WPR12IA248](https://openairdocs.org/ntsb/WPR12IA248), May 22, 2012: Eurocopter AS 350 B2 (N105TV), Seattle, WA, incident, minor damage. Probable cause: Failure of maintenance personnel to ensure that the tail rotor pitch change link bolt was properly secured, which resulted in an in-flight separation of the bolt and subsequent vibration.

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. For accidents, the NTSB's own investigation is the fuller record.

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