ASN Wikibase Occurrence # 186521
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| Date: | Thursday 25 April 1991 |
| Time: | |
| Type: |  Bell 206B Jet Ranger II |
| Owner/operator: | Can-Arc Helicopters |
| Registration: | C-GKAY |
| MSN: | 728 |
| Year of manufacture: | 1971 |
| Fatalities: | Fatalities: 0 / Occupants: 3 |
| Aircraft damage: | Destroyed |
| Location: | Pitt Lake, British Columbia -
 Canada
|
| Phase: | Take off |
| Nature: | Passenger |
| Departure airport: | Pitt Lake, British Columbia |
| Confidence Rating: |  Information is only available from news, social media or unofficial sources |
The helicopter had landed on a floating log boom to allow one of his passengers to disembark. Subsequently, in preparation for departure, the pilot lifted off and entered a three foot hover. A C of G hover check was then carried out. With both the remaining passengers seated on the left, the pilot noted a slight left lateral C of G.
The pilot moved the helicopter sideways to the left and turned to ensure that the area near the tail rotor was clear of ground personnel and to position the helicopter for an into-wind departure. As the helicopter ascended to approximately eight feet above the log boom, it began to roll left and to pitch nose up.
One of the passengers advised the pilot that the rear portion of the left skid was snagged on a steel cable. The pilot placed the cyclic control to an extreme right-forward position and lowered the collective in a attempt to regain attitude control. The helicopter descended slightly and the tail rotor struck the log boom. The tail rotor gear box assembly and vertical fin separated from the tail boom, and the helicopter began to spin rapidly to the right in a nose-down attitude.
The pilot closed the throttle to stop the rotation; however, he could not correct the nose-down attitude even with full aft cyclic. The main rotor blades then struck the log boom and the main rotor mast failed causing the rotor assembly to separate from the helicopter. The helicopter fell onto its left side and came to rest lying at right angles to the logs.
While the passenger was disembarking, the logs supporting the helicopter had drifted sideways and the left bearpaw slid under one of the log boom retaining cables
Sources:
1. TSB Canada A91P 0072
2. http://www.rotorspot.nl/historic/c-3.php
3. http://www.ascendworldwide.com/download/Cust/WAAS167_Complete.pdf
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 17-Apr-2016 21:59 | Dr.John Smith | Added |
| 18-Apr-2016 16:22 | Dr.John Smith | Updated [Nature] |
| 01-Dec-2019 10:27 | TB | Updated [Plane category] |
Corrections or additions? ... Edit this accident description
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