ASN Wikibase Occurrence # 30221
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| Date: | Monday 20 March 2000 |
| Time: | 15:24 |
| Type: |  Bell 206B-3 JetRanger III |
| Owner/operator: | Horizon Helicopters, Inc. |
| Registration: | N5002E |
| MSN: | 2428 |
| Year of manufacture: | 1978 |
| Total airframe hrs: | 17591 hours |
| Fatalities: | Fatalities: 0 / Occupants: 3 |
| Aircraft damage: | Destroyed |
| Category: | Accident |
| Location: | Brazos 341 Oil Platform, off Texas Coast, Gulf of Mexico -
 United States of America
|
| Phase: | Approach |
| Nature: | Offshore |
| Departure airport: | Brazos 341, GM |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The pilot was maneuvering the helicopter to land on an offshore platform. He initially approached the platform from the north, heading into the wind, which was from the south-southeast at 20-25 knots. The pilot began a right turn to circle clockwise around the platform at 300 to 400 feet agl and 70 to 80 mph indicated airspeed. Approximately 3/4 of the way around the platform, the helicopter 'began to spin' to the right. The pilot applied left pedal in an attempt to stop the spin, however, there was 'no tail rotor response.' The pilot 'made an effort to try to come out of [the spin] by lowering the collective and dropping the nose of the aircraft.' Control inputs had no effect on stopping the spin, and the helicopter descended and impacted the water. There were no reported anomalies to the tail rotor system prior to the accident. In February 1995, the FAA issued an Advisory Circular (AC 90-95) concerning unanticipated right yaw in helicopters, or loss of tail rotor effectiveness (LTE). The AC advises pilots LTE may occur in right turns at low airspeeds, and that correct, timely response is critical to prevent a loss of control.
Probable Cause: The pilot's right turn maneuver during low speed resulting in a loss of tail rotor effectiveness and subsequent loss of control.
Accident investigation:
 |
|
Sources:
NTSB: https://www.ntsb.gov/_layouts/ntsb.aviation/brief.aspx?ev_id=20001212X20634&key=1
FAA register: 2. CAA: http://registry.faa.gov/aircraftinquiry/NNum_Results.aspx?NNumbertxt=5002E
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 27-Sep-2008 01:00 | ASN archive | Added |
| 12-Apr-2015 21:15 | Dr. John Smith | Updated [Time, Aircraft type, Operator, Total fatalities, Total occupants, Other fatalities, Location, Country, Phase, Nature, Destination airport, Source, Damage, Narrative] |
| 21-Dec-2016 19:16 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
| 21-Dec-2016 19:20 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
| 12-Dec-2017 18:30 | ASN Update Bot | Updated [Operator, Nature, Departure airport, Destination airport, Source, Narrative] |
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